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Gaseous mixture (e.g., solid-gas, liquid-gas, gas-gas)

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702 - Data processing: measuring, calibrating, or testing


702022000 - Chemical analysis

702023000 - Quantitative determination (e.g., mass, concentration, density)

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20130030718APPARATUS AND METHOD FOR AIR MONITORING - An apparatus for monitoring air for target air contaminants particularly on board an aircraft, comprises: means for sensing ultrafine particles in air; a database; and a processor for receiving information output from the sensing means; wherein the processor is adapted to monitor the information output from the sensing means and to compare this information with data in the database to identify target air contaminants such as volatile and/or semi-volatile organic compounds.01-31-2013
20130035870APPARATUS AND METHOD FOR MEASURING AIR QUALITY - To improve the measurement accuracy of an air analyzer, a method of introducing position information to group and average a set of position-dependent air quality samples is proposed. The method comprises the steps of sampling the air at a first sampling rate to obtain a plurality of air quality samples by using a first sensor; sampling the positions of an apparatus at a second sampling rate to obtain a plurality of position samples; analyzing the plurality of position samples to obtain a plurality of spatial relationship information; grouping the plurality of air quality samples into a second plurality of air quality sample sets; and for each air quality sample set, calculating a representative value as the air quality value of a corresponding sampling duration. By using this method, non-position-relevant air quality samples can be excluded from the calculation of the air quality of a specific position or area.02-07-2013
20130035869APPARATUS AND METHOD FOR MONITORING AND SAMPLING AIR QUALITY IN AN INTERIOR SPACE OF A WALL - An apparatus and method for monitoring and sampling air quality in an interior space of a wall are provided. The apparatus includes a housing configured to attach the apparatus to an electrical outlet in the wall, and a gasket configured to provide a seal between the housing and the electrical outlet. The apparatus further includes an air moving unit configured to draw air from the interior space of the wall into the apparatus, and a sensor configured to monitor and sample the air quality in the interior space of the wall. The gasket is configured to directly attach to an electrical plate cover of the electrical outlet or to the wall.02-07-2013
20100332147System For Estimating A Gas Concentration In A Mixed Atmosphere - A system for estimating gas concentrations in a mixed atmosphere includes (a) a plurality of sensors for providing a set of measurements, at least one of the sensors sensitive to an internal concentration of hydrogen; and (b) a processor for receiving the set of measurements and for executing a sequential estimation filter that includes a plurality of states having a corresponding set of values. The processor responsively adjusts at least a portion of the set of values in response to the set of measurements. The plurality of sensors can include a resistive sensor and a capacitive gas sensor, both of which are sensitive to hydrogen concentration. The plurality of states can include states representative of hydrogen pressure in the mixed atmosphere, hydrogen concentration in a bulk material of at least one of the sensors, and hydrogen concentration in an interface layer of at least one of the sensors.12-30-2010
20120185179REACTIVE GAS DETECTION IN COMPLEX BACKGROUNDS - A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described.07-19-2012
20130046484DATA PROCESSING FOR HYPERPOLARIZED XENON MAGNETIC RESONANCE IN THE LUNG - Embodiments quantify gas exchange in a lung using a model that results in two related expressions, which account for normalized amplitudes of two dissolved-Xenon signals in the lung at a given gas-exchange time. One of the two dissolved-Xenon signals is from Xenon in lung tissue and blood plasma, which resonates at about 197 ppm from the free-Xenon frequency in the air space. The other is from Xenon in the red blood cells, which resonates at about 217 ppm for human but is species dependent.02-21-2013
20130046485MULTI-DETECTOR GAS IDENTIFICATION SYSTEM - A novel gas analysis system and method of identifying analytes in a gas sample are provided. The system uses multiple gas analysis technologies and uses the combined qualitative and quantitative data obtained from the multiple gas analysis technologies to analyze a gas sample.02-21-2013
20100138166ESTIMATING CONSUMER ALCOHOL INTAKE USING NON-INVASIVE TECHNOLOGY - One or more alcohol inputs are received at the interactive system. Each of the alcohol inputs corresponds to an alcoholic beverage to be consumed by a consumer. The system calculates an estimated blood-alcohol level of the consumer based on the alcohol inputs. The estimated blood-alcohol level is compared with one or more alcohol impairment limits retrieved from an electronic data store. If the comparison reveals that the consumer might be impaired, an alert is automatically signaled.06-03-2010
20110015873DETECTING ENVIRONMENTAL INTERFERENT IN A TRANSDERMAL ALCOHOL MONITOR - An improvement in monitoring alcohol levels through transdermal testing is provided by detecting if environmental gasses, referred to as interferents, have been introduced into a transdermal vapor sample. An insensible skin perspiration sample may not be completely controlled and can contain interferents from an environmental source rather than the subject. Before testing a skin perspiration sample, the alcohol sensor is sampled and averaged to establish a baseline value. A sample is drawn and presented to the alcohol sensor. The output of the alcohol sensor is monitored to determine the amount of alcohol in the sample. A maximum alcohol sensor value for the transdermal alcohol monitor is set by determining the baseline value when no alcohol is present in the sample. Subsequent baseline values during a reading above the maximum alcohol sensor value indicate that an environmental interferent is present in the alcohol sensor.01-20-2011
20130060486NOX SENSOR DIAGNOSIS APPARATUS AND SELECTIVE CATALYTIC REDUCTION SYSTEM - An NOx sensor diagnosis apparatus, which diagnoses an NOx sensor provided in an exhaust pipe to detect a concentration of NOx in exhaust gas, includes a calculation value operating unit to acquire a calculation value of the concentration of NOx in the exhaust gas based on an actuation state of an engine, an error determining unit to determine that the sensor is erroneous when a difference between the calculation value and the detection value of the concentration of NOx detected by the sensor is larger than a determination threshold value, and a determination threshold value setting unit to set the determination threshold value based on a temperature of water for cooling the engine, an atmospheric pressure, and an outdoor temperature.03-07-2013
20130060485METHOD FOR AUTOMATICALLY OPERATING A MEASURING DEVICE FOR MEASURING PARTICLES IN GASES - In the course of a method for automatically operating a measuring device for measuring particles in gases, in particular for measuring carbon black particles in the exhaust gas of internal combustion engines, particle-related variables are repeatedly determined from the blackening of a filter paper in temporally limited individual measurements and the differential pressure caused by the flow of measurement gas is monitored via the internal measuring diaphragm, wherein the individual measurement is automatically terminated and an error message is output below a primary threshold value for the differential pressure. In order to now minimize interruptions in measurement operation and to increasingly ensure that correct measured values are output, the passing of a secondary threshold value for the differential pressure, which is above the primary threshold value, is monitored and the individual measurement is automatically terminated if this secondary threshold value is undershot, and the satisfaction of at least one predefined criterion is checked, wherein the individual measurement is terminated with an error message if this criterion is not satisfied, whereas a measured value is output if the criterion is satisfied.03-07-2013
20130060484Method for Establishing Gas Molecule Database - A method of establishing a database of gas molecules is disclosed. In this method, a metal-organic framework absorbs gas molecules of a guest material. Thereafter, after a predetermined time, the thermogravimetric analyzer (TGA) is utilized to make sure that the gas molecules have been adsorbed by the metal-organic framework. Finally, the metal organic framework with the gas molecules adsorbed thereon is analyzed by fluorescence spectrophotometer, and the light-emitting wavelength and waveform are recorded to establish a database of gas molecules.03-07-2013
20130066564SYSTEM AND METHOD FOR DYNAMICALLY MEASURING OXYGEN LEVELS - An oxygen sensing system including an oxygen sensor, a microprocessor and one or more additional sensors for sensing parameters associated with the environment or with the oxygen sensor, accounts for one or more sensed conditions when calculating oxygen levels. The one or more sensors may sense conditions associated with environmental effects or effects of use that may cause the oxygen sensor to degrade over usage or over time. A baseline amplification and measurement circuit coupled to the oxygen sensor may enable the sensor to operate less frequently or for shorter periods of time, thereby increasing the life span, calibration hold time of the sensor, and reducing power requirements.03-14-2013
20130066565SYSTEMS AND METHODS OF CONFIGURING GAS DETECTION EQUIPMENT BASED ON A USER INTERVIEW - Systems and methods of configuring gas detection equipment based on a user interview are provided. Methods include presenting a plurality of questions to a user regarding the gas detection equipment, receiving user feedback responsive to each of the plurality of questions, and determining configuration parameters, in accordance with the user feedback, for bringing piece the gas detection equipment into a compliant state.03-14-2013
20130166224Relative humidity and condensation measurement with a capacitive humidity sensor - A method and apparatus for measuring relative humidity including condensing environmental conditions using a circuit with a capacitive humidity sensor and a reference resistor each connected to an input of a switch means and thence a quadrature sampling circuit. A sinusoidal source is first connected to the reference resistor and secondly to the capacitive humidity while a signal ground is first connected to the capacitive humidity sensor and secondly to the reference resistor. This produces a first voltage and a second voltage that are each sampled in quadrature. A complex ratio of the sampled voltages is calculated and converted into a representation of relative humidity.06-27-2013
20130166225SAMPLE GAS ANALYZING DEVICE AND COMPUTER PROGRAM FOR THE SAME - The present invention is intended to make reduction of interference influence and reduction of a measurement error compatible in a quantitative analysis of one or more measurement target components and to provide a analyzing device (06-27-2013
20100042333SYSTEM, METHOD AND COMPUTER NETWORK FOR TESTING GAS MONITORS - System and method are utilized for testing the performance of a gas monitor against predetermined monitor characteristics to determine if performance of a gas monitor is validated following testing gas being directly delivered to a gas sensor of the gas monitor.02-18-2010
20090138210FOG DETECTOR AND METHOD OF PLACING DETECTOR IN VEHICLE - A light emitting element and a light receiving element is placed in such a manner that the light axis of a light emitting element constructing a light emitting circuit and the light axis of a light receiving element constructing a light receiving circuit cross each other. The light pathway length R05-28-2009
20110282589METHOD OF MEASURING PHYSICAL-CHEMICAL PARAMETERS OF NATURAL GAS - The invention relates to a method for measuring physical-chemical parameters of natural gas. The pressure and the temperature of the natural gas are measured. The value of a control parameter is determined when said control parameter is used. The physical-chemical parameters corresponding to the parameters of the natural gas are selected. The data on the physical-chemical parameters of the natural gas is transmitted to a data output device.11-17-2011
20120290221SYSTEM AND METHOD FOR MEASURING GHG EMISSIONS ASSOCIATED TO BIOPRODUCT INDUSTRY - The method & system hereby described allows the measuring of GHG emissions produced during the generation of bioproduct from different source materials. The method comprises capturing, processing and handling different parameters and data related to GHG emissions associated to every single process needed to produce bioproduct and the delivery of said bioproduct and/or source material to be transformed into said bioproduct, in order to generate a total GHG emissions value by means of applying formulae to the captioned and processed isolated data referred to GHG emissions of every process.11-15-2012
20110301866Detection and Quantification of Gas Mixtures in Subterranean Formations - Methods and systems are provided for quantifying contributions of gas mixtures in a reservoir compartment by way of isotopic analyses. Differing thermal maturities of the different gas mixtures allow estimation of the relative quantity of each gas mixture present in a total gas mixture. Thermal maturities may be estimated by reference to isotopic analyses of each contributing gas mixture and a commingled gas mixture resulting from commingling each of the individual source gas mixtures. This method may be carried out at various depths to determine relative contributions of each gas mixture to the total gas mixture as a function of wellbore depth. Advantages of certain embodiments include, but are not limited to, higher accuracies and ease of application as compared to conventional methods.12-08-2011
20110301865Methods and Apparatus for Analyzing Samples and Collecting Sample Fractions - Methods and apparatus for analyzing a sample using at least one detector are disclosed.12-08-2011
20120010825GAS CHROMATOGRAPH WITH DIGITAL PROCESSING OF A THERMOCONDUCTIVITY DETECTOR SIGNAL - A gas chromatograph operable to analyze a sample gas comprising a carrier gas and components. The gas chromatograph includes a bridge circuit with a sample sensor connected therein. A servo amplifier is connected to the bridge circuit and is operable to maintain the sample sensor at a constant temperature. An output of the servo amplifier is digitized and is used to quantify the components in the sample gas.01-12-2012
20090132177Detection Arrangements and Systems - A detection system has several conventional computers (05-21-2009
20090299651FILTRATION TESTING SYSTEM - A filtration testing system is provided. The filtration testing system includes one or more filtration systems configured for filtering a fluid. A filtration system of the one or more filtration systems includes one or more filter units. The filtration testing system further includes a gas detector configured to quantify gas in the fluid at a downstream side of the one or more filter units of the one or more filtration systems. The gas detector is configured to generate a gas quantification, compare the gas quantification to a predetermined gas characteristic, and detect a fault in the one or more filtration systems if the gas quantification exceeds the predetermined gas characteristic.12-03-2009
20090287425SAFETY CLOTHING - Safety clothing (11-19-2009
20100076695Sensing and Estimating In-Leakage Air in a Subambient Cooling System - In certain embodiments, estimating air in a cooling system includes measuring a property that can be used to estimate the air to yield a plurality of measurements. The measurements are performed for different heat loads and for different concentrations of non-condensable gas in the cooling system. The measurements are stored a data set.03-25-2010
20100268480METHOD AND SYSTEM FOR MEASURING EMISSION AND QUANTIFYING EMISSION SOURCE - A system and method for quantifying an emission source is provided. The system and method obtain a plurality of emission concentration measurements at one or more sampling points and wind data over the time the emission concentrations are measured. For each sampling point, a virtual sampling arc can be constructed using the emission concentration measurements taken at the sampling point, the wind data for when the emission concentration measurement were taken and an approximate distance to the emission source. The virtual sampling arcs can then be used to construct one or more virtual sampling grids and the amount of emissions emanating from the emissions source approximated from the virtual sampling grids.10-21-2010
20090150087CHROMATOGRAPHY USING MULTIPLE DETECTORS - Methods and related apparatuses and mixtures are described for chromatographic analysis. The described system includes a pressurized source of a mobile phase and a flow path in fluid communication with the pressurized source such that the mobile phase flows through the flow path. The system also includes an injector in fluid communication with the flow path and downstream of the pressurized source, the injector being configured to inject a sample into the flow path. A first column located downstream of the injector, contains a stationary phase, and forms part of the flow path. A first detector is positioned to detect properties of fluid in the flow path at a location downstream of the injector and upstream from the first column. A second detector is positioned to detect properties of fluid in the flow path at a location downstream of the first column.06-11-2009
20120109536MULTIFUNCTION SENSOR SYSTEM AND METHOD FOR SUPERVISING ROOM CONDITIONS - The invention refers to a multifunction sensor system and a corresponding method for supervising room conditions, comprising a temperature sensor, a humidity sensor, an ultrasonic transducer for emitting ultrasonic waves and being positioned in a fixed distance to a reflecting fixed reflective surface. For calculating the CO05-03-2012
20090088983METHOD AND DEVICE FOR DETERMINING THE COMPOSITION OF A GAS MIXTURE OF A FUEL TANK OF A MOTOR VEHICLE FILLED WITH CNG - In a process and device for determining the composition of a gas mixture of the fuel tank of a motor vehicle filled with a CNG gas, the measured values of a pressure sensor and a temperature sensor, which are generally present in conventional fueled motor vehicles, are used to determine the vapor pressure (pd) of at least one of the gases in the gas mixture, in particular ethane, propane and/or butane. If the vapor pressure of one of the components of the CNG gas in the fuel tank falls short, then one relevant, current composition of the gas mixture is determined. This offers the advantage in an internal combustion engine that as much gas can always be injected with the 20 requisite energy value, as is called for by the specified air-fuel ratio (λ-value) and the conditions of operation. This achieves optimum combustion with minimal exhaust.04-02-2009
20090287424METHOD AND APPARATUS OF MEASURING PARTICULATE MATTERS - An apparatus for measuring particulate matters includes a particulate matters collecting part 11-19-2009
20090037119System for estimation and control of the concentrations of pollutant gases at the discharge of a gas turbine - System for estimation and control of the concentrations of pollutant gases at the discharge of a gas turbine comprising a unit (02-05-2009
20080288182Energy Flow Measurement In Gas Pipelines - Thermodynamic properties of a natural gas stream can be determined in real time utilizing modeling algorithms in conjunction with one or more sensors for quantifying physical and chemical properties of the natural gas. Related techniques, apparatus, systems, and articles are also described.11-20-2008
20090265117System and method for automated collection and reporting of greenhouse gas emission reductions - A system and method for automated collection and reporting of data indicative of greenhouse gas emissions reductions (GHGER) and GHGER is disclosed. Improvement upon the known process of collecting and reporting data indicative of GHGER for use in proposing verification, by a jurisdiction, of said data as GHGER and submitting GHGER for acceptance, by a jurisdiction, to an accounting registry, is combined using a computer database software application (CDSA).10-22-2009
20120296572SYSTEM AND METHOD FOR REAL-TIME SAMPLE ANALYSIS - A system for predicting the amount of VOCs in an extruded product includes a container holding a gaseous sample, a detector in communication with the container for analyzing the gaseous sample, and a processor in communication with the detector and programmed to analyze the data from the detector and predict the amount of VOCs in an extruded product. A method of predicting an amount of extractable volatile organic compounds in an extruded product includes delivering a sample of gas from an intermediate stage in an extrusion process to a detector, analyzing the sample of gas using the detector to obtain data about the amount of VOCs in the sample of gas, delivering the data to a processor, comparing the data to control data to generate comparison data, and predicting the amount of extractable VOCs in the extruded product.11-22-2012
20120143516SYSTEMS AND METHODS FOR ANALYZING BUILDING OPERATIONS SENSOR DATA - Systems and methods are disclosed for analyzing building sensor information and decomposing the information therein to a more manageable and more useful form. Certain embodiments integrate energy-based and spectral-based analysis methods with parameter sampling and uncertainty/sensitivity analysis to achieve a more comprehensive perspective of building behavior. The results of this analysis may be presented to a user via a plurality of visualizations and/or used to automatically adjust certain building operations. In certain embodiments, advanced spectral techniques, including Koopman-based operations, are employed to discern features from the collected building sensor data.06-07-2012
20120143515Multi-detector gas identification system - A novel gas analysis system and method of identifying analytes in a gas sample are provided. The system uses multiple gas analysis technologies and uses the combined qualitative and quantitative data obtained from the multiple gas analysis technologies to analyze a gas sample.06-07-2012
20110270534METHOD AND APPARATUS FOR DETERMINING GAS FLUX - Disclosed embodiments of the present invention provide means to obtain correct gas density and flux measurements using (i) gas analyzer (open-path, or closed-path gas analyzers with short intake tube, for example 1 m long, or any combination of the two); (ii) fast temperature or sensible heat flux measurement device (such as, fine-wire thermocouple, sonic anemometer, or any other device providing fast accurate gas temperature measurements); (iii) fast air water content or latent heat flux measurement device (such as, hygrometer, NDIR analyzer, any other device providing fast accurate gas water content measurements); (iv) vertical wind or sampling device (such as sonic anemometer, scintillometer, or fast solenoid valve, etc.) and (v) algorithms in accordance with the present invention to compute the corrected gas flux, compensated for T-P effects. In case when water factor in T-P effects is negligible, the fast air water content or latent heat flux measurement device (item iii in last paragraph) can be excluded.11-03-2011
20090055103Substance Release Estimation Using Path-Averaged Concentration Measurements - A system and method for using path-averaged concentration measurements for estimating the amount of substance being released from a particular location. One or more open-path sensing systems are set up in appropriate locations around possible substance release sites and tuned to detect a particular substance of interest. Path-averaged concentration measurements of the particular substance are collected over time and communicated to an open-path back calculation algorithm. The algorithm calculates time-averaged measurements for a plurality of time periods. Back calculation is then performed with the time-averaged measurements to estimate the release rate and the total release of the substance.02-26-2009
20090055102Remote sensor and in-situ sensor system for improved detection of chemicals in the atmosphere and related method thereof - A system having an optical remote sensor where sensing can be achieved from distance, and therefore without necessarily making contact with the threat chemical, with one or more in-situ sensors where sampling of air is required, and where at least one sensor is cross-reactive. Aspects of some of the various systems capable of achieving, but not limited to thereto, the following advantages: (a) by the optical sensor: long range advanced warning, rapid large volume analysis, fast response continuous monitoring for protection against bursts, safety to the operator, (b) by the in-situ sensor: high sensitivity, (c) by the combination of sensors, high specificity, better avoidance of interferences by chemicals and (d) by the inclusion of cross reactive characteristics, the ability to learn response to new chemicals.02-26-2009
20080319682Method and System For Operating In-Situ (Sampling) Chemical Sensors - A system and method of alternately purging an in-situ sensor with clean fluid and sampling a fluid volume of interest, in order to eliminate drifts and errors associated with the absorption of chemicals to the sensing elements of in-situ sensors. The system and method effectively processes the output of the in-situ sensor using this alternating sample and purge cycle to detect and identify chemicals accurately and reliably. The system and method also effectively reduce errors induced by temperature and humidity drifts in the ambient, and the sampled, fluid.12-25-2008
20110144921GREENHOUSE GAS EMISSION TRADING SYSTEM, GREENHOUSE GAS EMISSION TRADING APPARATUS, GREENHOUSE GAS EMISSION TRADING METHOD AND PROGRAM - There is provided a greenhouse gas emission trading system including at least one battery for storing electric power, a measuring unit that measures, after a first amount of electric power has been stored in the battery, when a power supply request is received from the outside, a power amount of electric power having been stored in the battery, and a calculation unit that calculates greenhouse gas emissions for notification to the outside, based on measurement results by the measuring unit and information about emissions of greenhouse gases that were emitted when generating the first amount of electric power.06-16-2011
20110231109Mass Analysis Data Processing Method and Mass Spectrometer - The present invention aims at creating an accurate mass spectrum with a high resolving power based on a plurality of multi-turn time-of-flight (TOF) spectra, while reducing the amount of computation to assure the real-time processing. First, a plurality of TOF spectra each obtained for a different timing when ions are ejected from the loop orbit are measured (S09-22-2011
20120078532NON-DISPERSIVE INFRARED SENSOR MEASUREMENT SYSTEM AND METHOD - Non-dispersive infrared (NDIR) sensing systems employ a NDIR sensor coupled to a microprocessor to determine gas concentrations by employing slope-based methodologies that compensate for pressure variations, temperature variations, or both, which may compare NDIR signals with calibrated data. NDIR sensor systems may employ means for limiting the system peak current demand providing for the portability and scalability of the system. In NDIR sensor systems calculating gas concentrations using calibration data, the phase of the change in the NDIR output signal in response to a change in the infrared source emitter level may be measured as part of the calibration process.03-29-2012
20090006005METHOD AND DEVICE FOR ON-LINE ACOUSTIC MONITORING OF FOAM AND AERATED FLUID PROPERTIES - A method and device for on-line foam quality acoustic monitoring are suggested. As per the invention, the method provides for the following: at least one emitter/receiver pair is placed in a close vicinity to the foam flow; at least one acoustic pulse is emitted; time, within which the acoustic pulse overcomes the way from the emitter to the receiver, is recorded; acoustic pulse speed (sound speed) is determined by analyzing an acoustic response of the receiver. After that, pressure in the foam in the area between the emitter and receiver is defined and the foam quality Γ is calculated as per the equation:01-01-2009
20080275653Microscale Flash Separation of Fluid Mixtures - Systems, methods and apparatus implementing techniques for separating and/or analyzing fluid mixtures. The techniques employ microfluidic separation devices that include an inlet port for receiving a fluid feed stream, a microscale fluid flow channel in fluid communication with the fluid inlet port, a phase equilibrium control region located along the fluid flow channel for controlling conditions including temperature and/or pressure to provide a thermal equilibrium, a capillary network in the temperature control region, a first outlet port in indirect fluid communication with the fluid flow channel through the capillary network, and a second outlet port in direct fluid communication with the fluid flow channel. A plurality of microfluidic separation devices can be coupled in fluidic communication to provide for separation of complex mixtures. The systems, methods and apparatus can be used to characterize fluid mixtures.11-06-2008
20100161242EXHAUST GAS SENSING SYSTEM AND METHOD FOR DETERMINING CONCENTRATIONS OF EXHAUST GAS CONSTITUENTS - An exhaust gas sensing system and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensing system includes a NH06-24-2010
20100191478METHOD FOR ESTIMATING THE LEVEL OF ETHANOL IN A FUEL - A method for estimating a level of ethanol in a fuel injected into an internal combustion engine over a number (n) of cycles (n being an integer greater than or equal to 1). The method includes: determining start of combustion of an injected fuel for each of the cycles; calculating the average combustion start angle from combustion start angles recorded for all of the n cycles; determining the end of combustion of an injected fuel for each of the cycles; calculating the average combustion end angle from the combustion end angles recorded for all of the n cycles; calculating the combustion time between the combustion start time and the combustion end time; and deducting the level of ethanol from the combustion time on the basis of a pre-determined model or a list of combustion times and associated ethanol levels.07-29-2010
20100241361Binning and Tomography for High Spatial Resolution Temperature and Species Concentration Measurements - A method of absorption spectroscopy including obtaining absorption data at multiple wavelengths along more than one line-of-sight path through a quantity of gas of interest. The method further includes identifying more than one temperature and gas species concentration bin along the multiple line-of-sight paths and creating a map of temperature and gas species concentration. The map thus created will have at least two-dimensional information derived from select temperature and gas species concentration bins identified along more than one line-of-sight path. Apparatus for implementing the above method is also disclosed.09-23-2010
20100223014COMBUSTION TEMPERATURE ESTIMATION SYSTEM AND METHOD FOR AN ENGINE MANAGEMENT SYSTEM - A flame temperature estimator includes an adiabatic flame temperature module that estimates an adiabatic flame temperature. A temperature reduction module estimates a temperature reduction for the adiabatic flame temperature based on an air-to-fuel ratio of an engine. A combustion temperature trend module generates a combustion temperature trend based on the temperature reduction and the adiabatic flame temperature.09-02-2010
20100241362FUEL PROPERTY DETERMINING APPARATUS - A fuel property determining apparatus may comprise a first sensor and second sensor. The first sensor may detect a concentration of an alcohol contained in fuel. The second sensor may detect a vapor pressure of the target fuel. The fuel property determining apparatus may further comprise a memory and a processor. The memory may store first data for determining a “heavy/light gravity—vapor pressure” relationship based on the concentration of the alcohol. The processor may determine the fuel property of the target fuel based on the first data stored in the memory, the alcohol concentration detected by the first sensor, and the vapor pressure detected by the second sensor.09-23-2010
20100241363MEASUREMENT OF CARBON CAPTURE EFFICIENCY AND STORED CARBON LEAKAGE - Data representative of a measured carbon dioxide (CO09-23-2010
20100241364DEVICE AND METHOD FOR DETERMINING MATERIAL MOISTURE BY THERMOGRAVIMETRY - A device and a method for determining material moisture by thermogravimetry. Included in the device are: a test chamber (09-23-2010
20090043515DIGITAL GAS DETECTOR AND NOISE REDUCTION TECHNIQUES - A sensor apparatus incorporates a responding gas sensor to measure and display gas concentrations or other indications. Calculation of a gas concentration may be derived from an output signal of a light detector through the use of a linear equation. Through the use of digital processing an output signal may be sampled to calculate a gas concentration based on a rate of change of the output voltage.02-12-2009
20100223015METHOD AND APPARATUS FOR SILOXANE MEASUREMENTS IN A BIOGAS - A method for monitoring of siloxane compounds in a biogas includes the step of generating a first absorption spectrum based on a ratio of a first spectral measurement and a second spectral measurement. The first spectral measurement is from a non-absorptive gas having substantially no infrared absorptions in a specified wavelength range of interest and the second spectral measurement is from a sample gas comprising the biogas. The method also includes the step of calculating a concentration of at least one siloxane compound in the biogas using a second absorption spectrum based on, at least, a first individual absorption spectrum for a known concentration of the at least one siloxane compound.09-02-2010
20100235107CONCENTRATION SENSOR DEVICE AND CONCENTRATION DETECTING METHOD - A concentration sensor device includes a sensor unit, a substrate, and a sedimentation limit unit. The sensor unit detects a concentration of a specific component contained in liquid. The substrate has a face to which the sensor unit is arranged. The sedimentation limit unit is integrally arranged with the sensor unit or arranged at an upstream side of the sensor unit in a flowing direction of the liquid. The sedimentation limit unit is configured to prevent sedimentation of a foreign object on the sensor unit. The sedimentation limit unit includes a piezoelectric element to vibrate when electricity is supplied so as to promote the foreign object to be separated from the sensor unit. The substrate has a recess recessed in a thickness direction of the substrate.09-16-2010
20090112485Nitric oxide sensors and systems - The present disclosure relates to nitric oxide sensors and systems.04-30-2009
20100262382METHOD AND APPARATUS FOR CONTINUOUS MEASUREMENT OF DIFFERENCES IN GAS CONCENTRATIONS - A method for continuous measurement of differences in gas concentrations, comprises providing at least first and second gas analyzers, connecting a stream of incurrent fluid to a chamber containing an animal, withdrawing air from the chamber to form a stream of excurrent fluid, taking first subsamples of the excurrent fluid in a first subsampler, taking a subsample of the incurrent fluid in a second subsampler, alternately providing excurrent fluid from the first subsampler to the first gas analyzer and to the second gas analyzer to measure the gas concentrations in the excurrent fluid, and alternately providing incurrent air from the second subsampler to the first gas analyzer and to the second gas analyzer to measure the gas concentrations in the incurrent fluid.10-14-2010
20130138361METHOD OF DETERMINING THE ENERGY CONTENT OF A METHANE-RICH GAS MIXTURE - A method of determining energy content using a specific gravity meter double calibrated to measure both molecular weight and relative density.05-30-2013
20110015874APPARATUS AND METHOD FOR DETECTING COMPONENTS OF MIXED GAS - The present invention provides an apparatus and method for detecting components of a mixed gas which increases the detection efficiency using a sensor array in which various types of nanomaterials such as carbon nanotubes (CNT), zinc oxide (ZnO), titanium dioxide (TiO01-20-2011
20110040493SYSTEM AND METHOD FOR MONITORING GREENHOUSE GAS - A greenhouse gas monitoring system collects information about greenhouse gas and analyzes a greenhouse gas emissions distribution using the collected information about greenhouse gas. Thereafter, the greenhouse gas monitoring system generates a greenhouse gas distribution map by mapping the greenhouse gas emissions distribution to a three-dimensional digital map and provides the greenhouse gas distribution map to the user according to a user's request.02-17-2011
20110246088SYSTEM AND METHOD FOR MONITORING DISSOLVED GASES IN INSULATING OIL OF POWER TRANSFORMERS, REACTORS, ON-LOAD TAP CHANGERS, CURRENT TRANSFORMERS, POTENTIAL TRANSFORMERS, CONDENSIVE BUSHINGS AS WELL AS SIMILAR HIGH VOLTAGE EQUIPMENTS IMMERSED IN OIL - “SYSTEM AND METHOD FOR MONITORING DISSOLVED GASES IN INSULATING OIL OF POWER TRANSFORMERS, REACTORS, ON-LOAD TAP CHANGERS, CURRENT TRANSFORMERS, POTENTIAL TRANSFORMERS, CONDENSIVE BUSHINGS AS WELL AS SIMILAR HIGH VOLTAGE EQUIPMENTS IMMERSED IN OIL”, remarkably consisting of a system that couples to an orifice for the insulating oil accessing, assuring to the monitoring system the access to an oil sampling with a good representativity of what is going on inside the high voltage equipment, besides allowing a simple and safe installation, and also presenting to the user several resources and interfaces.10-06-2011
20110246089MICRO-FABRICATED DOUBLE CONDENSER METHOD AND APPARATUS FOR THE MEASUREMENT OF NUMBER-SIZE DISTRIBUTION OF AIRBORNE NANO-PARTICLES - A micro-fabricated double condenser method and apparatus for the measurement of number-size distribution of airborne nanoparticles is provided. The invention is an instrument which can measure particle size under 100 nanometers in-situ. The present invention includes features such as a small nanoparticle airborne particulate analyzer, with a voltage-stable and feedback-controlled instrument package. The invention features also include a micro-fabricated nanoparticle charging and sorting device (NCaS). The present invention provides a portable, lightweight, and efficacious particle-sizing instrument that is able to effectively count and size nanoparticles over a wide range of operating conditions.10-06-2011
20110251800SYSTEM AND APPARATUS FOR MEASUREMENT AND MAPPING OF POLLUTANTS - Apparatus and systems, preferably using UV spectroscopy, for the dynamic and continuous detection and quantification of a range of chemicals, particularly pollutants, in the environment, and to the production of a real-time display or map to display chemical levels in the environment are provided. By providing data packets which combine details of pollutants in the atmosphere with very accurate position and temporal information, and real-time map of pollution is provided.10-13-2011
20100063749GAS DENSITY TRANSDUCER WITH A MICROPROCESSOR EXECUTING AN ALGORITHM SOLVING VAN DER WAALS EQUATION - A gas density transducer including: a piezoresistive bridge sensor operative to provide an output indicative of an applied pressure, a computing processor having multiple inputs and at least one output, with the output of the bridge sensor coupled to an input of the processor; a temperature sensor coupled to an input of the processor for providing at an output a signal indicative of a temperature of the bridge sensor, the output of the temperature sensor coupled to an input of the processor; and, at least one memory accessible by the processor and having stored therein: compensation coefficients for compensating the output of the bridge sensor for temperature variation; an algorithm for solving Van der Waal's equation; and, code for providing at an output of the processor a signal indicative of a gas density when the bridge is subjected to a gas containing environment.03-11-2010
20090216463DEVICES AND METHODS FOR QUANTIFICATION OF LIQUIDS IN GAS-CONDENSATE WELLS - Devices and methods for measuring the fraction of a liquid in a wet gas flow are described, the device including one or more light sources emitting at a first wavelength at which the liquid is highly absorbing and emitting at a second wavelength close to the first wavelength and at which the liquid is not highly absorbing; and one or more sensor for detecting the transmittance of the light at the first and second wavelengths through said gas flow, the device further including processing means for determining a liquid fraction of the liquid in the wet gas flow by correcting the transmittance measured at the first wavelength for the effects of scattering using the transmittance measured at the second wavelength. By making use of cross-correlations or know flow rate meters the device can be used as a flow meter.08-27-2009
20090216462Spectroscopic Analysis and Control - Apparatus for spectroscopic analysis which includes a tunable diode laser spectrometer having a digital output signal and a digital computer for receiving the digital output signal from the spectrometer, the digital computer programmed to process the digital output signal using a multivariate regression algorithm. In addition, a spectroscopic method of analysis using such apparatus. Finally, a method for controlling an ethylene cracker hydrogenator.08-27-2009
20110098936METHOD FOR DETERMINING THE HEATING VALUE AND THE RELATIVE DENSITY OF A HYDROCARBON FUEL AND APPARATUS FOR THE SAME - There is disclosed a method for determining the heating value of a fuel, the fuel comprising at least one hydrocarbon including a first hydrocarbon present in the highest molar concentration, the method comprising: measuring the stoichiometric oxidation molar flow ratio of the fuel; determining the ideal molar heating value (HV04-28-2011
20110087441ONLINE METHOD TO ESTIMATE HYDROGEN CONCENTRATION ESTIMATION IN FUEL CELL SYSTEMS AT SHUTDOWN AND STARTUP - A system and method for estimating the amount of hydrogen and/or nitrogen in a fuel cell stack and stack volumes at system start-up and shut-down. The method defines the fuel cell stack and stack volumes as discrete volumes including an anode flow-field and anode plumbing volume, a cathode flow-field volume and a cathode header and plumbing volume. The method estimates the amount of hydrogen and/or nitrogen in the anode flow-field and anode plumbing volume, the cathode flow-field volume and the cathode header and plumbing volume when the fuel cell system is shut down, during a first stage when the hydrogen partial pressure between the anode and cathode is not in equilibrium and during a second stage when the hydrogen partial pressure between the anode and cathode is in equilibrium by considering various flows into and out of the volumes.04-14-2011
20100070198HYDROGEN EMISSION REPORTING SYSTEM AND METHOD THEREOF - The present invention provides a system and method for monitoring and reporting the controlled and uncontrolled emissions of hydrogen gas from an end use application such as a hydrogen cooled electrical generator. The system first determines a quantity hydrogen produced by a hydrogen conversion device from a first operating parameter. The quantity of hydrogen released in a controlled manner is determined from a second operating parameter. The amount of uncontrolled hydrogen emissions may then be calculated from the produced hydrogen and controlled release values. A report detailing the type and amounts of hydrogen emissions may then be created.03-18-2010
20110098937INTEGRATED MOS WIRELESS SENSOR - A single chip wireless sensor comprises a microcontroller connected by a transmit/receive interface to a wireless antenna. The microcontroller is also connected to an 8 kB RAM, a USB interface, an RS232 interface, 64 kB flash memory, and a 32 kHz crystal. The device senses humidity and temperature, and a humidity sensor is connected by an 18 bit ΣΔ A-to-D converter to the microcontroller and a temperature sensor is connected by a 12 bit SAR A-to-D converter to the microcontroller. The device is an integrated chip manufactured in a single process in which both the electronics and sensor components are manufactured using standard CMOS processing techniques, applied to achieve both electronic and sensing components in an integrated process.04-28-2011
20110153224Measurement of Environmental Impact of Electronic Devices - Devices, implementations and techniques for measuring the environment impact of electronic devices, such as CO06-23-2011
20120303290REALTIME SILICON DETECTION SYSTEM AND METHOD FOR THE PROTECTION OF MACHINERY FROM SILOXANES - An inline siloxane detection system including each of an inductively coupled plasma (ICP) exciter; a beam splitter to split a light beam emitted from the ICP exciter into secondary light beams; a first signal filter selectively configured for a wavelength corresponding to silicon and configured to receive a first secondary light beam from the beam splitter; a first detector configured to detect a silicon-indicating wavelength in the first secondary light beam; a second signal filter configured to receive second secondary light beam from the beam splitter, and further selectively configured for a background wavelength of the second secondary light beam; a second detector configured to receive and detect a filtered signal from the second signal filter; and a processor configured to receive signals from each of the first detector and the second detector and to calculate a concentration of silicon in the gas sample.11-29-2012
20120203471GENERATION SOURCE ESTIMATION APPARATUS AND METHOD OF DIFFUSION MATERIAL - A generation source estimation apparatus of a diffusion material is featured by including: an observation information acquisition section which acquires position information, and measured concentration information from each of the observers; a virtual grid setting section which sets virtual discharge points on a virtual grid; an influence function calculation section which calculates influence functions; a residual norm calculation section which calculates, for each of the virtual discharge points, a residual norm that is the sum of squares of a difference between the concentration information acquired from each of the observers, and the product of the influence function associating the virtual discharge point with each of the observers, and the discharge intensity at the virtual discharge point; and an estimation section which estimates, as a discharge point, the virtual discharge point corresponding to the residual norm smallest among the residual norms calculated respectively for all the virtual discharge points.08-09-2012
20100305871METHOD AND SYSTEM FOR A FILTER - The present invention relates to a system for determining particle transmittance T12-02-2010
20100280765SENSING USING POLARIZATION DIVERSITY AND WAVELENGTH DEPENDENT BACKSCATTER - Provided herein are systems and methods capable of detecting and discriminating and/or classifying hazardous biological agents or other hazardous agents. In one aspect, a system measures electromagnetic energy scattered by a material at the different polarizations states and wavelengths. The system then combines the measured electromagnetic wavelengths at the different polarization states and wavelengths into different combinations to produce input parameters for a classifier. The input parameters include both depolarization and wavelength-dependent back scattering measurements of the material illuminated by transmitted electromagnetic energy. The depolarization measurement provides information on the shape and absorption features of the material and the wavelength-dependent information provides information on the shape and index of refraction of the material. The combined measurements provided in the input parameters increases the information available to the classifier to classify materials, enabling the classifier to classify a wider range of materials.11-04-2010
20110153223REMOTE VEHICLE EMISSIONS SENSING SYSTEM AND METHOD FOR DIFFERENTIATING WATER FROM HYDROCARBONS - Water droplets in exhaust gas that is, or was, analyzed by a remote emissions sensing system are detected. The detection may be made using measurements generally captured by the remote emissions sensing system during typical operation. As such, the detection may be applied “on site” as remote emissions sensing analysis is ongoing, or may be applied post hoc from data previously acquired by a remote emissions sensing system. The detection may be implemented without requiring additional sensors, more sophisticated sensors, and/or other additional or more sophisticated equipment being included in the remote emissions sensing system.06-23-2011
20100063748Gas Detector System and Method - A method, system, and apparatus for sensing gases includes a gas detector with at least one light emitter and at least one light detector configured to detect an intensity of light at wavelengths of light indicative of target gas(es). The system also includes a processor circuit and a data storage device in communication with the gas detector and configured to determine an amount of target gas in the volume of the gas-air mixture and to determine a lower explosive limit (“LEL”) level for at least one target gas in the gas-air mixture. The processor is configured to receive data regarding temperature and relative humidity of the gas-air mixture such that the processor circuit can adjust the LEL according to the temperature and humidity. Temperature and humidity sensors may be included to sense these conditions for inputting to the processor.03-11-2010
20120203470Measurement Method - A measurement method in which, at the start of a measurement chain, a measured variable is picked up and is further-processed over the course of the measurement chain by conversion to generate a measurement result, where the original or converted measured variable is modulated at a predetermined modulation frequency at a first point in the measurement chain. At a second point in the measurement chain or sequence, which is after the first point in the direction of further-processing, a variable is added to the converted measured variable. The measurement chain or sequence is calibrated using different known values for the measured variable, where different vectors are obtained that define a characteristic, and an unknown value for the measured variable is determined from that point of the characteristic at which the vector obtained in the process or its extension intersects the characteristic.08-09-2012
20080255769Reactive Gas Detection In Complex Backgrounds - A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described.10-16-2008
20110015875METHOD AND DEVICE FOR THE DETECTION AND IDENTIFICATION OF GASES IN AIRPLANE INTERIOR SPACES - The concept underlying the invention is the development of a generic method for the detection and identification of gases in airplane interior spaces and an associated device, which is small and manageable, has a simple design, and allows the immediate and simultaneous detection and identification of the gases to be examined. This is achieved in that the supply air of the airplane interior space (01-20-2011
20110125414METHOD FOR OPERATING A GAS SENSOR - A method for operating a gas sensor is provided, wherein provision is made for determining the concentration of a gas component in a sample gas. In so doing, the gas sensor is operated in at least two different operational modes. A first operational mode (05-26-2011
20110125413DEVICE AND SYSTEM TO RECONSTRUCT TRAVEL HISTORY OF AN INDIVIDUAL - Methods and systems for determining travel history can be based on noninvasive analysis of stable isotope ratios in the body of an individual. A method for reconstructing a travel history for an individual can include collecting a sample of exhaled breath from the individual and analyzing the sample to obtain a breath isotope ratio. The breath isotope ratio can be transformed to a body water isotope ratio and compared to a map model correlating input isotope ratios to geographic locations so as to determine a travel origin for the individual.05-26-2011
20120150451Optical Computation Fluid Analysis System and Method - Methods and apparatus for determining at least one property of fluids related to oilfield operations may include an optical calculation device for measuring light having interacted with the fluid (e.g., flowing fluids and flames). The flame may be fueled, at least in part, by the stream of fluid from the subsurface well. Methods may include directing interacted light that comprises light having passed through a fluid relating to an oilfield operation to an iris; performing a regression calculation on the interacted light with an optical calculation device responsive to the interacted light incident thereon to produce at least one output light signal; and determining at least one property of the fluid from the at least one output light signal.06-14-2012
20100179769METHOD AND DEVICE FOR MONITORING AN EXHAUST GAS RECIRCULATION SYSTEM AND COMPUTER PROGRAM - In a method and device for monitoring an exhaust gas recirculation system of an internal combustion engine, an actual value (AV_EGR) of an exhaust gas recirculation rate is determined depending on a load degree (LD) of a soot particle filter (07-15-2010
20110137574Graphical Technique for Visualizing Effects of Environmental Emission Reductions - An emission management system is implemented via a host server that is accessible to a large number of clients (organizations) using a website. Based on data input by a client relating to actual usage of resources, the client's past CO2e emission over time is calculated by the host server and displayed to the client on the website in the form of a wedge chart, with emissions along the y-axis and time along the x-axis. The server software also extrapolates the past emissions to display baseline predicted future emissions, assuming no reduction strategies are implemented. The client also inputs an emission target level and proposes one or more strategies for reducing the baseline level to achieve the target level. The server converts each strategy to a CO2e emission reduction and layers the different reductions between the baseline level and the target so the client can graphically see the effect of each strategy on achieving the target.06-09-2011
20120310547Programmable Carbon Monoxide Safety Device - A programmable toxic gas safety device for detecting a toxic gas, such as carbon monoxide, is provided. The programmable safety device is preferably used in an enclosed area for monitoring the levels of gas emitted by a device that can produce a toxic gas. The device contains a controller which is operably coupled to at least one transmitter and at least one sensor for sensing the level of the toxic gas in the enclosed area, and is operable to provide a signal to remotely operate the toxic gas producing device. The device further contains one or more receivers for learning a command signal which actuates a specific functionality to the toxic gas producing device.12-06-2012
20110137573SYSTEM AND METHOD FOR MONITORING EMISSIONS FROM ENGINES - A system is provided for monitoring and testing engine emissions during normal operations. The system monitors and logs engine data to determine when the engine is operating at a steady-state within a defined test mode. The system may measure and log multiple sets of emissions data while the engine is operating in the defined test mode. The multiple sets of emissions data may be aggregated for qualifying the engine and may provide trend information about the engine. The test mode definition may be revised based on the logged engine data. The system may be used to selectively monitor one or more of a set of multiple engines.06-09-2011
20120310548ENVIRONMENT RISK ANALYSIS SYSTEM AND METHOD OF ANALYZING ENVIRONMENT RISK - An environment risk analysis system includes: a probe terminal configured to acquire environment data including an atmosphere density; an environment analysis client configured to receive threshold data for analysis of an environment risk, specify an analysis-target area in geographic information, output the threshold data and data of the specified analysis-target area, receive an analysis result of the environment risk of the specified analysis-target area, and display data based on the analysis result in layers on the geographic information; and an environment analysis server configured to analyze the environment risk of the specified analysis-target area based on the environment data, the threshold data and the data of the specified analysis-target area, to output the analysis result. The environment analysis server calculates an estimation of a degree of an environmental influence based on the environment data, and calculates an estimation of an exposure rate of the environmental influence.12-06-2012
20100030486Method and Apparatus for Determining at Least One Measured Variable of a Medium - A method for determining and/or monitoring at least one measured variable of an at least partially gaseous medium with at least one mechanically oscillatable unit, which is excited to execute mechanical oscillations, and whose mechanical oscillations are received and evaluated. At least one characteristic curve is stored, which describes for at least one gas or a gas mixture at least the dependence of at least one characteristic variable of the mechanical oscillations of the mechanically oscillatable unit on pressure; at least the characteristic variable of the mechanical oscillations of the mechanically oscillatable unit is determined; the determined characteristic variable is compared with the stored characteristic curve; and, starting from the comparison of the determined characteristic variable with the stored characteristic curve, the measured variable of the medium is determined. Further, an apparatus for determining and/or monitoring the measured variable is envisioned.02-04-2010
20100017148SYSTEM AND METHOD FOR MEASURING FILTER SATURATION - The invention relates to a system for measuring the saturation level of a filter comprising a parallel filter; a divider for dividing said gas flow into at least a main flow and a sub flow, wherein said main flow is fed into said main filter and said sub flow is fed into said parallel filter, wherein the volume ratio between said main flow and said sub flow is substantially equal to the filter capacity ratio and/or filter volume ratio between said main filter and said parallel filter, and a detector operatively associated with the flow coming from the main filter and/or from the discharge side of said parallel filter, for measuring the concentration of the component in said flows and detecting a difference in said concentrations. The detector is arranged for detecting the concentration of the component at a temperature higher than 100° C.01-21-2010
20110153225IN-LINE COMPOSITION AND VOLUMETRIC ANALYSIS OF VENT GASES AND FLOODING OF THE ANNULAR SPACE OF FLEXIBLE PIPE - A method and system for monitoring a flexible pipe, including an inline sensor system coupled to the annulus of the flexible pipe to detect corrosion of the flexible pipe. Also disclosed are method and system for monitoring an amount of water being accumulated in an annulus of a flexible pipe, including locating a pressure measurement system proximate to the annulus for measuring pressure of gas inside the annulus; controlling a flow of vent gas with a vent gas valve; positioning a flow measurement system upstream or downstream of the vent gas valve for measuring the flow of the vent gas when the vent gas valve is opened; and collecting with a microprocessor pressure and flow measurement data from the pressure and the flow measurement systems for determining the amount of water accumulated in the annulus based on the collected pressure and flow measurement data.06-23-2011
20110307186System and Method for Determining the Phase Envelope of a Gas Condensate - A system for determining the phase envelope of a gas condensate includes a microfluidic device defining an entrance passageway, an exit passageway, and a microchannel in fluid communication with the passageways. The system includes an input sample bottle in fluid communication with the entrance passageway and a first pump associated with the input sample bottle for urging the gas condensate, in the input sample bottle, into the entrance passageway. The system further comprises an output sample bottle in fluid communication with the exit passageway and a second pump associated with the output sample bottle for pressurizing the gas condensate, in the output sample bottle, into the exit passageway in opposition to the first pump. The system comprises a temperature control device for controlling the temperature of the gas condensate in the microchannel. The first pump and the second pump operate to provide a desired pressure drop across the microchannel.12-15-2011
20110112772TRANSMISSION QUANTIFICATION OF OPEN PATH FTIR SPECTRA WITH TEMPERATURE COMPENSATION - A transmission quantification approach that is effective at quantifying the concentration of key atmospheric gases, including water vapor and methane, does not require a background spectrum and is immune to changes between background and absorbance spectra. By using local minima and maxima in transmission of a target gas, this approach creates two spectral arrays as long as a single beam input spectra. One of these spectral arrays represents the points in wave-number space that are less absorbing points, and the other represents the more absorbing points. A concentration for a given gas is calculated by determining what reference concentration creates a residual after division by a pure gas spectrum that forces these two arrays to converge.05-12-2011
20120041688METHOD FOR GAS ANALYSIS OF ON-LOAD TAP CHANGERS - The present invention relates to a method for quantitatively analyzing gases as a monitor for on-load tap changers. The general inventive concept lies in selecting particular characteristic gases allowing an indirect subsequent association and a dimension for aging effects, excessive discharge, and/or heating of the on-load tap changer; measuring said characteristic gases, formed during the operation of the tap changer in the insulating oil thereof, at particular time intervals; forming indicative quotients from the measured values of the defined gases, said quotients allowing direct conclusions about aging effects, excessive discharge, and/or heating; displaying trends from a comparison of the currently derived value of each quotient to the most recently derived value for the same quotient; and inferring warnings for aging effects, excessive discharge, and/or heating if the corresponding quotients tend to change significantly over time or in the course of the switch changes made.02-16-2012
20100217535Vehicle CO2 Emission Offsetting System And Method - A method of offsetting carbon dioxide (CO2) emissions includes the steps of capturing CO2 emissions data from a vehicle, transmitting the emissions data to a data collection unit, which then stores collected CO2 data and prepares a CO2 emission report. The CO2 emission report is used in preparing a customized CO2 offsetting package, which is selected by a vehicle owner. The selected CO2 offsetting package offsets the CO2 emissions through purchased credits, which neutralize the CO2 released from the vehicle. The owner of the package is given a visual indicator exhibiting that the vehicle is currently carbon neutral.08-26-2010
20120046880System and Method for Creating and Processing Data Validation Rules for Environmental or Non-anthropogenic Data - A system and method for validation of data about non-anthropogenic processes acquired without human input. The method includes comparisons of data relating to physical or chemical processes or known limiting factors, or of similar measurements at other representative locations. The present invention provides a graphical user interface to allow the definition of an unlimited number of rules, with the option for spatial specificity, for automatically tabulating data using a computer program or other processing mechanism, with various actions performed on the data based on the results and defined by the user.02-23-2012
20120004861Energy Flow Measurement In Gas Pipelines - Thermodynamic properties of a natural gas stream can be determined in real time utilizing modeling algorithms in conjunction with one or more sensors for quantifying physical and chemical properties of the natural gas. Related techniques, apparatus, systems, and articles are also described.01-05-2012
20120059598PARTICULATE MATTER DETECTION DEVICE - A particulate matter detection device 03-08-2012
20120016597METHOD FOR GAS CHROMATGRAPHY ANALYSIS AND MAINTENANCE - A method of analyzing gas chromatography data may include acquiring response factor data for each of a plurality of compounds included in one or more calibration gas samples from a gas chromatograph apparatus, and determining a correlation with molecular weight data for each of the plurality of compounds. The correlation may be analyzed to determine a condition of the gas chromatograph. The method may also determine a correlation for each of a plurality of operating phases of the gas chromatograph, for example, before and after actuation of valves which change the flow rate. The method may also include diagnosing faults, and calibrating and configuring gas chromatographs.01-19-2012
20100169027Analytical Equipment Enclosure Incorporating Phase Changing Materials - Thermally controlled enclosures that can be used with gas analyzers are described. The enclosures incorporate one or more phase changing materials that buffer ambient and internal heat loads to reduce the power consumption demand of mechanical or electronic heating apparatus. Maintenance of gas analyzer equipment at a consistent temperature can be important to achieving stable and reproducible results. Related systems, apparatus, methods, and/or articles are also described.07-01-2010
20110093217METHOD AND APPARATUS FOR DETECTING MOISTURE IN BUILDING MATERIALS - A moisture sensor system is described. In one embodiment, the provides an adjustable threshold level for the sensed moisture level. The adjustable threshold allows the moisture sensor to adjust to ambient conditions, aging of components, and other operational variations while still providing a relatively sensitive detection capability. In one embodiment, the adjustable threshold moisture sensor is used in an intelligent sensor system that includes one or more intelligent sensor units and a base unit that can communicate with the moisture sensor units. When one or more of the moisture sensor units detects a excess moisture the moisture sensor unit communicates with the base unit and provides data regarding the moisture condition. The base unit can contact a supervisor or other responsible person by a plurality of techniques, such as, telephone, pager, cellular telephone, Internet (and/or local area network), etc. In one embodiment, one or more wireless repeaters are used between the moisture sensor units and the base unit to extend the range of the system and to allow the base unit to communicate with a larger number of sensors.04-21-2011
20110093216METHOD AND DEVICE FOR DETERMINING THE RELATIVE HUMIDITY OF AN INSULATING LIQUID FILLED ELECTRIC APPARATUS - A method for determining the relative humidity of an insulating liquid filled electric apparatus including a container containing insulating liquid and gas, a communication unit providing communication between the gas of the container and gas of an external environment, and providing dehydration of gas passing through the communication unit, wherein the method includes: continuously measuring and storing the relative humidity of the gas in the container, calculating an average value of the relative humidity in the gas based on the stored humidity measurements during a certain time period, and determining the relative humidity of the insulating liquid based on the average value of the relative humidity in the gas and a relationship between the relative humidity of the gas and the relative humidity of the insulating liquid at equilibrium.04-21-2011
20110093215Reactive Gas Detection In Complex Backgrounds - A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described.04-21-2011
20110093214DANGEROUS SUBSTANCE DETECTION SYSTEM - A method of quickly detecting a handmade explosive in a bottle with a low erroneous alarm frequency is provided. A sample gas generated from a bottle placed on a bottle placement space is sucked-in, and ions of the sample gas are generated by an ion source and subjected to mass analysis. The presence/absence of a mass spectrum derived from the handmade explosive is determined from an obtained mass spectrum, and the result thereof is displayed on a monitor, thereby quickly detecting the handmade explosive in the bottle or the handmade explosive adhering to the surface of the bottle at a low erroneous alarm frequency.04-21-2011
20120158313Method and Device for Characterization and Sensing of Exhaust Gas and Control of Engines and Components for Aftertreatment of Exhaust Gases - A method and device allow the determination of the concentrations of a plurality of gas species in a gas mixture based on the output signals from a plurality of gas sensors, each of which is sensitive to a plurality of gas species in the gas mixture. The method includes measuring the response of each sensor at a number of levels of each gas in the mixture, determining a mathematical representation of the response characteristics of each sensor, and using the mathematical representation to determine gas concentrations from sensor readings.06-21-2012
20110077872MICROCANTILEVER-BASED GAS SENSOR EMPLOYING TWO SIMULTANEOUS PHYSICAL SENSING MODES - According to one embodiment, a system for detecting and identifying gases includes a piezoresistive microcantilever transducer, wherein dissipation of heat from the piezoresistive microcantilever into one or more gases is measured by changes in an electrical resistance of the piezoresistor, a vibrating microcantilever transducer, wherein shifts are measured in resonant frequency of the vibrating microcantilever due to viscous damping thereof by the one or more gases, and a subsystem for correlating the measured resistance changes and the resonant frequency shifts to the one or more gases. In another embodiment, a method for detecting and identifying one or more gases includes determining dissipation of heat from a microcantilever into one or more gases, and determining shifts in resonant frequency of the microcantilever due to viscous damping thereof by the one or more gases. Other systems, methods, and computer program products are also described according to more embodiments.03-31-2011
20110066387APPLIANCE MONITORING APPARATUS - A convention appliance monitoring apparatus handles only the amount of gas used and security information for the case of a gas cutoff and can not address social needs for a desire to obtain information about influence (e.g., an amount of CO03-17-2011
20120123696METHOD AND SYSTEM FOR STEAM QUALITY MONITORING - A method of determining a steam quality of a wet steam located in an interior of a steam turbine includes emitting from an optical probe a plurality of wavelengths through the wet steam, measuring with the optical probe a wet steam intensity corresponding to each of the plurality of wavelengths emitted through the wet steam, determining an intensity ratio vector by dividing the wet steam intensity by a corresponding dry steam intensity for each of the plurality of wavelengths, successively applying scaling factors to the intensity ratio vector to obtain a scaled intensity ratio vector, calculating a suitable value for each of the scaling factors to obtain a plurality of residuals, determining a minimum residual of the plurality of residuals, determining a droplet size distribution by calculating the droplet number density corresponding to the minimum residual, and determining the steam quality based on the droplet size distribution.05-17-2012
20100057377System and Method for Feature Alignment - In a system and method for feature alignment in chromatographic systems, the system runs a first sample through a first separation column. The system determines a first set of features for the first sample run. The system runs a second sample through a second separation column and detects a second set of features for the second sample run. The system estimates a systematic shift in features between the first sample run through the first separation column and the second sample run through the second separation column. The system adjusts the second set of features detected for the second sample run through the second separation column based on the estimated systematic shift to obtain a third set of adjusted features.03-04-2010
20100250146MULTI-DIMENSIONAL PORTABLE GAS CHROMATOGRAPH SYSTEM - A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly connected to the regulator and the dopant chamber, a first separation column fluidly connected to the at least one pre-concentrator, a second separation column fluidly connected to the at least one pre-concentrator, a first detector fluidly connected to the first separation column, and a second detector fluidly connected to the second separation column.09-30-2010
20120215464ENERGY CONSUMPTION MONITOR - The apparatus and method of the present invention provides accurate consumption and efficiency data for a given system by taking into account many of the external factors described. The apparatus receives inputs from a number of different sources including environmental sensors, utility meters and other device sensors. The input data are transmitted to a central base-station that communicates the data to a remote server. The server uses the sensor data and calculates system performance values, for example energy consumption and cost, and compares these to a number of preset values, for example user defined targets or ‘Best-In-Class’ performance. The data are then available to a user online via a secure web-based interface.08-23-2012
20110178722Method and apparatus for detection of the remote origin fraction of radon present in a measuring site - A method and an apparatus for detecting the remote origin fraction of 07-21-2011
20110184657HYDROGEN SENSOR - A hydrogen sensor includes a substrate, a hydrogen absorbing member, a power source, an ammeter, and a processing unit. The hydrogen absorbing member is positioned on the substrate, and includes a carbon nanotube yarn and a hydrogen absorbing film coated on the carbon nanotube yarn. The ammeter measures an electric current. The hydrogen absorbing member and the ammeter are connected in series to the power source. The processing unit is electrically coupled to the ammeter to obtain a hydrogen concentration according to the electric current.07-28-2011
20120173163PROBE PLUG FOR EXHAUST GAS PROBE - The invention relates to an exhaust gas probe (07-05-2012
20120173162GAS DETECTING SYSTEM AND METHOD THEROF - A gas detecting system includes a gas measuring device and a computer device. The gas measuring device includes a chamber, at least one light source, at least one sensor, a processor, and a connection port. The computer device includes a joining port and an arithmetic unit, and the connection port is electrically connected to the joining port. The arithmetic unit outputs at least one control signal after a control procedure. The processor controls the light source disposed in the chamber to emit light which passes through an air cell of the chamber according to the control signal such that the sensor disposed in the chamber outputs a sensing signal to the processor. The processor outputs a characteristic value to the computer device according to the sensing signal. Therefore, the computer device can control and start the gas measuring device to perform gas detection through outputting the control signal.07-05-2012
20100299078CHROMATOGRAPHY DATA PROCESSING METHOD AND SYSTEM - A configurable scanner (11-25-2010
20120179389Gas Chromatographic Analysis Method and System - Method employing gas chromatography for determining a measure of match between chromatographic data respective of a sample and reference data, the method includes the procedures of acquiring the chromatographic data, determining a plurality of parameters in a modeling function so as to substantially fit the modeling function to the chromatographic data, the modeling function defined as a sum of a linear combination of probability distribution functions, and estimating the measure of match according to a degree of fitness between the modeling function and the chromatographic data.07-12-2012
20120179388SYSTEM, METHOD AND PROGRAM FOR EARLY DETECTION OF FAN FAILURE BY MONITORING GREASE DEGRADATION - A system for predicting a fan failure has a sensor to detect a gas emitted from grease in the fan. A concentration level of the emitted gas is indicative of grease degradation. The system also has circuitry coupled to the sensor to compare the level of the detected gas to a predetermined level. The system also has an alert apparatus coupled to the circuitry to generate an alert after the circuitry determines that the level of the detected gas exceeds the predetermined level.07-12-2012
20120253691TESTING A HUMIDITY SENSOR - A relative humidity of the environment of a humidity sensor is measured by the humidity sensor twice at different temperatures. For both measurements, a corresponding value based on a saturated vapour pressure at the subject temperature is calculated. The two calculated values derived are then evaluated. The evaluation result allows for a conclusion if the humidity sensor may be impaired in its capabilities of measuring humidity.10-04-2012
20120253690METHOD OF MEASURING DESTRUCTION RATE OF REFRIGERANT - The present invention provides a method for calculating a destruction rate of refrigerant by establishing a calibration line using standard refrigerant gases and measuring the amount of refrigerant remaining in exhaust gas discharged after destruction of waste refrigerant. For this purpose, the present invention provides a method for calculating a destruction rate of refrigerant, the method including: establishing a calibration line using standard refrigerant gas samples whose concentrations are known; sampling exhaust gas finally discharged after decomposition of waste refrigerant; measuring the concentration of refrigerant remaining in the sampled exhaust gas; and calculating the amount of undestroyed refrigerant using the concentration of refrigerant remaining in the exhaust gas, the amount of exhaust gas discharged, and the known density of refrigerant.10-04-2012
20090018780Hazardous Substance Release Notification System - Disclosed herein is a method and system for obtaining information on contaminants in ambient air. Multiple detection systems sample the ambient air for the contaminants in real time. Each of the multiple detection systems analyzes contaminants for hazardous substances. The multiple detection systems transmit information on the hazardous substances to a satellite monitoring system. The satellite monitoring system receives the transmitted information. The satellite monitoring system packages the information transmitted from each of the detection systems and analyzes the packaged information. The satellite monitoring system transmits the analyzed information to a console deployed on a computing device at a command station. The console receives the transmitted information from the satellite monitoring system and communicates user interaction based on the transmitted information to the satellite monitoring system.01-15-2009
20100305870DETECTION OF GAS VOIDS IN PIPE USING GUIDED WAVE - A gas detection system for the detection of gas voids in piping systems. The gas detection system includes a transmitter, a receiver, and a computer. The transmitter is positioned at a designated point on a piping circuit and is adapted to transmit guided waves into the piping circuit. The receiver is positioned at a designated point distant from the transmitter and is adapted to receive the guided waves transmitted through the piping circuit by the transmitter. The computer analyzes and monitors the guided waves received by the receiver and determines the amount of gas in the piping circuit being analyzed.12-02-2010
20110130973DEVICE AND METHOD OF EXAMINING ABSORPTION OF INFRARED RADIATION - A light absorption examining device includes a laser light source that emits the pulse laser beam, a measuring unit that retains the measuring object and irradiates the measuring object with the pulse laser beam, a light receiving unit that receives the pulse laser beam transmitted through the measuring object and outputs a light receiving signal, a pulse generator that produces a single rectangular pulse at a time when a signal level of the light receiving signal output from the light receiving unit intersects a set threshold, a laser driver that supplies the produced rectangular pulse to the laser light source to emit the pulse laser beam, and a control/processing unit that determines an accumulated delay time and examines absorption of the pulse laser beam by the measuring object using the determined accumulated delay time, the accumulated delay time representing a delay in a production timing of the rectangular pulse.06-02-2011
20120239308EMISSIONS MEASURING SYSTEM - An improved apparatus for sensing exhaust emissions (09-20-2012
20110046896 ALCOHOL THERMAL DEHYDRATATION CHAMBER, APPARATUS AND METHOD FOR DETERMINATION OF ISOTOPIC COMPOSITION OF NON-EXCHANGEABLE HYDROGEN AND DEUTERIUM ATOMS IN ETHANOL SAMPLES - The invention is related to the instrumental analytical chemistry, further more to the stable isotope determination in food products. The present invention is referred to the alcohol thermal dehydration chamber, apparatus for “online” determination of isotopic composition of non-exchangeable hydrogen stable isotopes in ethanol samples, which comprises of: A) Alcohol thermal dehydration chamber, B) Detection device, which contains pyrolysis reactor and the Continuous Flow Isotope Spectrometer, and it is connected to the alcohol thermal dehydration chamber over C) System of valves, connectors and capillary tubes which are used for transfer of analyzed sample as for the purging of the alcohol thermal dehydration chamber; procedure for “online” determination of isotopic composition of non-exchangeable hydrogen stable isotopes in ethanol samples and procedure for “offline” preparation of ethene (ethylene) gas by means of alcohol thermal dehydration chamber and for the purpose of authenticity and geographical origin determination of wines, strong spirits, beer, fruit juices, honey and other food product which contain alcohol and/or fermentable sugars.02-24-2011
20120323499System for Measurement of Greenhouse Gas Generation from Fuel Combustion - The present disclosure relates to a system and method for determining amounts of carbon dioxide, other greenhouse gas (GHG), and/or toxic gaseous emissions from a mobile or stationary emissions source such as automobiles having an internal combustion engine, fossil-fuel or other hydrocarbon-burning facilities, or the like. The system and method may calculate the amount of GHG emissions by measuring fuel consumption and converting to GHG emissions based on the known carbon content for the fuel. The system and method disclosed further include the generation and distribution of reports related to fuel consumption and/or GHG emissions data. The system may be used to monitor and track fuel saving measures, enforce compliance to regulatory limits, carbon taxes, or cap-and-trade programs, and the like.12-20-2012
20120271561SYSTEM AND METHOD FOR AIRCRAFT POLLUTION ACCOUNTABILITY AND COMPLIANCE TRACKING - A system method, and computer program product for individual aircraft pollution tracking, including at least one of real-time pollution tracking and pollution estimation of individual moving aircraft, wherein the pollution estimation is equal in accuracy as relative accuracy of employed inputs; pollution estimation for various aircraft, and various types of pollution based on suitably available raw data; and pollution estimation including filtering of outputs and formatting thereof to provide usability for comparison to regulation criteria and assessments of pollution mitigation efforts, including fleet mix, level of technology, and pollution attainment determination.10-25-2012
20120089343DETECTION OF ETHANOL EMISSION FROM A SPARK IGNITION ENGINE OPERATING ON GASOHOLS - Ethanol emissions from a direct ignition spark ignition are measured using mass spectrometry. The method exploits specific fragment ions from ethanol. Ethanol contributes ions of mass number 31, and no other gas species produces ions at this mass number. The method and a device for implementing the method can be used for online detection of ethanol in emissions from engines burning E85 or other ethanol/gasoline mixtures.04-12-2012
20120290220SYSTEM AND METHOD FOR CALCULATING GREENHOUSE GAS EMISSIONS IN THE PRODUCTION OF RAW MATERIAL FOR OBTAINING BIOPRODUCTS - For quickly and remotely obtaining the GHG emissions, without providing the sites of raw material production with means for collecting parameters. The system comprises a processing unit to execute instructions related to the determination of the emissions; the database for storing the relevant parameters related to the processes for the production of raw material; a data transmission means connected to the database and the processing unit, to retrieve said parameters from the database and transmitting said parameters to the processing unit, and a GHG emissions modeling module connected to the processing unit and adapted to generate a GHG emissions level. The method comprises considering a partial calculation for the emissions related to any process and adding them up to obtain an overall value for said GHG emissions.11-15-2012
20100131207GAS FLUX DETERMINATION USING AIRBORNE DIAL LIDAR AND AIRBORNE WIND MEASUREMENT - A system for obtaining emission flux of a gas plume, emanating from a source, includes an airborne differential absorption lidar (DIAL) system for determining multiple concentration path length (CPL) values along a flight path; and an airborne wind measuring system (WMS) for determining a wind vector at the aircraft altitude. Also included is a processor for receiving the multiple CPL values determined by the DIAL system and the wind vector determined by the WMS. The processor uses the CPL values to compute either (a) an area-integrated concentration (AIC) value or (b) an average concentration value over a cross-plume extent, defined along the length dimension of the flight path. The processor also scales the wind vector to the near ground altitude level of the gas plume to obtain a scaled wind vector. The emission flux is obtained by multiplying either the AIC value or the average concentration value with a component of the scaled wind vector. The component of the scaled wind vector is defined by a vector perpendicular to the length dimension of the flight path.05-27-2010
20130173178Apparatus and Method for Monitoring a Steam Plant - The invention relates to a monitoring apparatus for a steam plant, the apparatus comprising: a receiver (07-04-2013
20130185001VEHICLE EMISSIONS TESTING AND TOLL COLLECTION SYSTEM - What is disclosed is a system and method for testing a motorized vehicle's exhaust emissions in a non-controlled emissions testing environment. In one embodiment, the present system comprises a toll collection structure having a sensor for obtaining information about a registered owner of a motor vehicle and about the motor vehicle itself, as the vehicle travels on a lane which passes through the structure. At least one emissions detector, which is fixed to the toll collection structure, performs an emissions test on the vehicle by analyzing an exhaust plume emitted by the vehicle. Speed/acceleration of the vehicle is also measured. In various embodiments hereof, the emissions detector comprises a combination of dispersive or non-dispersive infrared detector and a dispersive or non-dispersive ultraviolet detector. Emissions data collected is automatically compared to emissions standards and an authority is notified if that the vehicle does not meet those standards. Various embodiments are disclosed.07-18-2013
20130090864METHOD, APPARATUS, SIGNALS AND MEDIA, FOR SELECTING OPERATING CONDITIONS OF A GENSET - A method for producing a plurality of cost values associated with operating a genset at respective operating points, the genset including an engine coupled to an electrical power generator, the method including assigning weights to each of a plurality of operating conditions associated with operating the genset having a plurality of operating points each comprising an engine speed value and a generator electrical power output value, said weights representing a desired trade-off between said plurality of operating conditions, receiving operating condition values corresponding to each of said plurality of operating conditions, said operating condition values associated with operating the genset at each of the plurality of operating points, and producing the cost values for each operating point by combining said operating condition values in accordance with said weights for each respective operating point.04-11-2013
20130103323TURBINE RADIAL SENSOR MEASUREMENT - A method of measuring parameters of a gas turbine flow path is described. The method includes installing along one or more existing struts in the gas turbine flow path a first plurality of sensors for measuring a first parameter at one or more radial positions along the one or more struts and a second plurality of sensors for measuring a second parameter at one or more radial positions along the one or more struts. The method further includes producing an actual profile of the gas turbine flow path first parameter and second parameter.04-25-2013
20130179089Odor Discriminating Apparatus - An odor discriminating apparatus includes: a measurement chamber including multiple pieces of odor sensors; a gas introducer for introducing a sample gas into the measurement chamber; concentration adjuster for diluting or condensing the sample gas before introducing the sample gas into the measurement chamber; a vector length computation unit for plotting, in a multidimensional space formed by axes corresponding to detection signals generated by each piece of odor sensors, a measurement point representing a measurement result of the sample gas and for computing a vector length of an odor vector directed from an origin of the multidimensional space to the measurement point; and a controller for feedback-controlling the concentration adjuster so that the vector length computed by the vector length computation unit reaches a predetermined target value.07-11-2013
20130131997SENSOR CONTROL DEVICE AND SENSOR CONTROL SYSTEM - A sensor control device for connection to an oxygen sensor including a sensing element that measures oxygen concentration in an intake atmosphere of an internal combustion engine and a heater that heats the sensing element, including a detection unit that detects an output signal corresponding to the oxygen concentration output from the sensing element and a calculation unit that calculates a compensation coefficient of the output signal that is used when calculating the oxygen concentration. The calculation unit collects compensation information used in calculating the compensation coefficient when the internal combustion engine is in operation and in a specific operation state in which the oxygen concentration in the intake atmosphere is subject to estimation. Also disclosed is a sensor control system which includes an oxygen sensor and the sensor control device.05-23-2013
20100286930SOOT DISCHARGE ESTIMATING DEVICE FOR INTERNAL COMBUSTION ENGINES - A soot discharge amount is calculated by multiplying a “steady discharge amount” by a “transient correction value.” The steady discharge amount is a soot discharge amount in a steady operation state, and is acquired through table search. For each of a plurality of factors which affect the soot discharge amount, a steady value (value obtained through table search) of the factor and a transient value (current value) of the factor are substituted for a characteristic equation which represents a change in the soot discharge amount with the value of the factor, whereby a steady characteristic value and a transient characteristic value are acquired. The “ratio between the steady characteristic value and the transient characteristic value” is then calculated for each factor. The transient correction value is obtained by multiplying together all values of the “ratio between the steady characteristic value and the transient characteristic value” obtained for the factors.” That is, the transient correction value is calculated as a “coefficient which represents the degree of deviation of the soot discharge amount from the steady discharge amount” in consideration of the influence of “deviation of the transient value from the steady value” for each factor in a transient operation state.11-11-2010
20100286929System for detecting and estimating concentrations of gas or liquid analytes - A sensor system for detecting and estimating concentrations of various gas or liquid analytes. In an embodiment, the resistances of a set of sensors are measured to provide a set of responses over time where the resistances are indicative of gas or liquid sorption, depending upon the sensors. A concentration vector for the analytes is estimated by satisfying a criterion of goodness using the set of responses. Other embodiments are described and claimed.11-11-2010
20110246090GAS SENSOR CONTROL DEVICE - For an A/F sensor 10-06-2011
20100292934EMISSIONS ANALYZER AND METHODS OF USING SAME - An apparatus for characterizing emissions includes an emissions analyzer for estimating a concentration of a selected emission of the emission; a flow rate analyzer for estimating a volumetric flow rate of the emission; and a processor in data communication with the emissions analyzer and the flow rate analyzer, the processor including instructions for estimating a mass per time unit value for the selected emission based on the estimated concentration and the estimated volumetric flow rate.11-18-2010
20120283961METHOD AND APPARATUS FOR DETECTING A GAS CONCENTRATION WITH REDUCED PRESSURE DEPENDENCY - This invention relates to a method that makes the measurement of a trace gas concentration invariant or at least less affected to pressure variations in the gas and atmospheric pressure changes. This method neither requires a pressure sensor nor a pressure calibration routine. Furthermore, the method can be applied to other gas species present in the background gas or to the background gas itself that cross-interfere with the target gas of interest. This allows removing any pressure dependency of cross-interference parameters of other gas species and/or the background gas. The new method for accurately measuring a gas concentration is based on optimizing the wavelength modulation amplitude of the laser to minimum pressure dependency.11-08-2012
20130158889METHOD FOR MAPPING OXYGEN CONCENTRATION - A method for determining the oxygen concentration of a sample made of a semiconductor material includes a heat treatment step of the sample to form thermal donors, the measurement of the resistivity in an area of the sample, the determination of the thermal donor concentration from a relation expressing the charge carrier mobility according to an ionized dopant impurity concentration, by adding to the dopant impurity concentration four times the thermal donor concentration, and from the measured resistivity value. The method finally includes determining the oxygen concentration from the thermal donor concentration.06-20-2013
20130158888CONTINUOUS AIR MONITORS - The invention provides for a continuous air monitor for detecting Alpha emitting radionuclides. The monitor measures and records the energy of each detected Alpha count in one of a plurality of channels and compensates for counts due to the presence of Radon. It does this by carrying out a channel by channel statistical test comparing the measured count in each channel to the expected count due to radon daughter products, and determining if any deviation from the expected count is statistically significant.06-20-2013
20130185000Automatic Collection and Updating of Compliance Data for Gas Detection Equipment - A gas detection unit (07-18-2013
20120290222ELECTROCHEMICAL GAS DETECTION DEVICE - An output of a direct current power supply is divided with a pair of resistors, and applied to any of electrodes of an electrochemical gas sensor provided with a detection electrode, a counter electrode and a solid electrolyte membrane through a buffer amplifier. Impedance of the gas sensor is measured by switching with a switch the connection destination of one electrode of the electrochemical gas sensor between a current amplification circuit and an impedance measurement circuit. The impedance measurement circuit is formed of an alternating current power supply that switches a potential of a resistor on a side of one end connected to the switch and a potential on a side of the other end of the resistor, between the output potential and the ground potential of the direct current power supply. Gas concentration is determined by storing humidity dependency and temperature dependency of the electrochemical gas sensor, and correcting the output of the current amplification circuit based on measured impedance and ambient temperature.11-15-2012
20120029835FIBER OPTIC CARBON DIOXIDE PURITY SENSOR PACKAGE AND SYSTEM - A carbon dioxide (CO2) purity sensor package includes a fiber core, a periodic refractive index modulated fiber grating structure within the fiber core and a fiber cladding. A thermally conductive sensing layer is positioned about a portion of the fiber cladding surrounding the periodic refractive index modulated fiber grating structure. A gas chamber encloses the fiber cladding with the thermally conductive sensing layer.02-02-2012
20130211732GAS DETECTING SYSTEM, DEVICE AND METHOD - A gas detecting system, device and method use a variable pulse voltage waveform to increase the temperature of a detecting unit of the gas detecting system so it reacts with gas molecules from a particular space, and outputs a sensing signal. A processing unit of the gas detecting system then performs calculations on the sensing signal, such that an analysis unit may determine the presence of a target gas in the particular space, and further the composition and concentration of the target gas within the particular space, thus providing a detection that is accurate, rapid and convenient.08-15-2013
20130211733ANALYSIS METHOD TO ACHIEVE A DETAILED ANALYSIS OF A REACTOR EFFLUENT - The present invention relates to a method suitable for establishing an analysis of a reactor effluent which is gaseous in process conditions and presents a gas phase and a liquid phase after cooling, comprising: 08-15-2013

Patent applications in class Gaseous mixture (e.g., solid-gas, liquid-gas, gas-gas)