Class / Patent application number | Description | Number of patent applications / Date published |
324694000 | To determine water content | 62 |
20080258743 | CONDENSATION SENSOR - A sensor arrangement is provided for attachment to an inside of a windshield in a motor vehicle, including at least a sensor element that determines the relative humidity and a printed circuit board that electrically contacts the sensor element, wherein the sensor element is attached to the printed circuit board in the direction of the windshield, and a compensating film that accommodates the curvature of the window is present at least between the sensor element and the windshield, and the compensating film is an adhesive film. | 10-23-2008 |
20090051374 | Method and Device for Determining the Humidity Content of An Insulation of A Transformer - A method and a device for determining a humidity content of an insulation of a transformer, the insulation having a liquid. At least one dielectric property of the insulation is measured, an uncorrected humidity content of the insulation and a conductivity of a liquid which is included in the insulation is derived from a model of the insulation, said model being chosen depending on the measured dielectric property of the insulation, and the humidity content of the insulation is corrected by means of the conductivity. | 02-26-2009 |
20090091338 | DISPOSABLE TOTAL DISSOLVED SOLIDS METER AND METHODS OF USE THEREOF - A disposable meter for testing the level of total dissolved solids in a water source and a method of testing the concentration of total dissolved solids are herein disclosed. The disposable meter may include a body with at least water resistant properties, a first indicator, the energization of which is indicative of a threshold level measured total dissolved solids, a pair of electrodes wherein energization passing between the pair of electrodes completes a circuit, and circuitry disposed within the body connected to the first indicator and the pair of electrodes. The circuitry may be configured to commence energization to pass between the pair of electrodes, measure the conductivity of the water between the pair of electrodes, and energize the first indicator if the measured conductivity value exceeds a predetermined threshold value. The method of testing the concentration of total dissolved solids present in a water supply may include projecting a current between a first electrode and a second electrode, measuring the conductivity of the water between the electrodes, comparing the measured conductivity to a plurality of threshold values, and energizing an indicator in a matter that is correlated to the highest threshold value met by the measured conductivity. | 04-09-2009 |
20090134889 | MOISTURE SENSOR APPARATUS AND METHOD - A sensor to detect water moisture in soil or other water permeable materials having a capacitive probe or a transmission line acting as a probe, and electronic circuit. The sensor circuit includes a periodic signal generator to produce a carrier wave, which stimulates the transmission line, through a resistive or reactive coupling element. The resistive element also forms a voltage divider with the transmission line, wherein the output of the voltage divider, is demodulated with a simple AM demodulator, such as a peak detector. This demodulated signal is related to the dielectric constant, and thus the moisture of the material surrounding the transmission line. | 05-28-2009 |
20090219041 | Water Content Detection Sensor System - A water content detection sensor includes a circuit member in which low resistance conductors | 09-03-2009 |
20100109684 | Fluid Detecting Mattress Cover and Monitoring System - Apparatus, systems, and methods are described for detecting moisture on a mattress cover. Conductive leads affixed to the mattress cover are configured in loop patterns, and adjacent conductive loops are positioned equidistant to one another to provide equal sensitivity to moisture at any location on the mattress cover. A quick-release connector allows the conductive leads to be quickly connected to an electrical monitoring circuit. The continuity of each conductive lead is periodically checked using a test signal. Moisture is detected by applying a different voltage level to adjacent conductive leads and measuring the current flowing between the leads. When moisture or a broken conductive lead is detected, an alarm signal is communicated to an attendant. The alarm signal is repeated at periodic intervals until the electrical monitoring circuit detects that the alarm condition has been corrected. The attendant's response time is recorded for future performance evaluations. | 05-06-2010 |
20100127718 | ELECTRO-MECHANICAL FLUID SENSOR - A sensor system includes a sensor and a control module. The sensor includes an electrically actuated moving member. The sensor is in fluid communication with a reservoir of a separator that separates a first fluid from a fuel. The control module selectively causes current to be supplied to the sensor to actuate the member. The control module measures the current and determines a parameter of the current. The control module identifies one of presence and absence of the first fluid in the reservoir based on the parameter. | 05-27-2010 |
20100141281 | WATER DETECTOR - A detector system is provided suited for detection of environmental effects. The sensing element is constructed in the form of a grid and is designed in particular for the detection of moisture. Said structure is suited for simple deployment, optionally embedding into concrete, and detection of environmental effects on a large scale such as tunnels, bridges, dams and quays. | 06-10-2010 |
20100164514 | SALINITY INDEPENDENT MULTIPHASE MEASUREMENTS - Method and device for measuring the content of a fluid flow, the fluid containing a combination of at least two of gas, oil and/or water. The method comprising the steps of: —repeatedly measuring the electrical properties of a cross section of the fluid and detecting time sequences identified by low gas content, especially characterized in that a gas bubble is not present, —in said periods of low gas content measuring the density of the fluid in the flow, wherein the density measurements are performed in at least one period of low gas content and the a fluid density is calculated based on the measured densities over said period or periods. | 07-01-2010 |
20100164515 | Method and System for Measuring Water Hardness - Prior to adding detergent or chelant, the conductivity of water in a washing chamber is measured. The maximum concentration of hard water ions that could correspond to the measured conductivity is determined, i.e., it is assumed that all of the conductivity is from calcium and/or magnesium ions in the water even though other ions may in fact be contributing to the measured conductivity. Enough chelating agent is added to the chamber to sequester this maximum concentration of hard water ions and the conductivity is measured again. Using the two conductivity measurements, the actual concentration of hard water ions is determined. A chelant factor based on the actual concentration of hard water ions is then used to determine the amount of chelant to be added for subsequent wash cycles to sequester all of the hard water ions. | 07-01-2010 |
20100176826 | Moisture Sensor and Method for Measuring Moisture of a Gas-Phase Medium - The invention relates to a moisture sensor which comprises a receiving area on its surface for a moisture film, the layer thickness of which is dependent on the relative humidity in the surrounding of the receiving area. The moisture sensor has a signal source which is connected to at least one control electrode at at least one infeed, the electrode abutting the receiving area, for providing a control voltage to the moisture film. The moisture sensor comprises at least one potential sensor which has at least one sensor area, under the receiving area, which is spaced apart from the at least one infeed. The sensor area is electrically insulated from the receiving area by an insulation layer, located between the sensor area and the receiving area, in such a way that an electrical potential can be capacitively detected by means of the potential sensor, the potential being dependent on the layer thickness of the moisture film and the control voltage. | 07-15-2010 |
20100188110 | Sensor having integrated electrodes and method for detecting analytes in fluids - A sensor having integrated electrodes in a single sensor configuration, which is operated by alternating current (AC) including periodic electrical excitation signals of the respective multiple frequencies with the same amplitude for detecting analytes in fluids. The sensor applies a total of an odd number of the identical conductors serving as the respective electrodes, which are positioned equally spaced apart, in order, alignment and parallel with each other. The odd numbered conductors of the total conductors are connected in parallel by a first electrically conducting means serving as a first electrical pole to form a first group of the integrated electrodes. The even numbered conductors are connected in parallel by a second electrically conducting means serving as a second electrical pole to form a second group of the integrated electrodes. The present invention sensor possesses properties of high output, reduced physical size and improved electrical characteristics. | 07-29-2010 |
20100194411 | POROUS MEDIUM ELECTRICAL CONDUCTIVITY SENSOR - There is provided a sensor for measuring a quantity, such as the salinity, of the soil solution without requiring continuous calibration. The sensor is based on a porous material which automatically fills up and saturates when the soil is rewet and drains when the soil dries out from plant uptake or from air drying, then being filled up with a solution representative of the quantity to be measured in the soil during plant growth. | 08-05-2010 |
20100231245 | AIRCRAFT POTABLE WATER SYSTEM - A sensing device ( | 09-16-2010 |
20100237883 | ELECTRICAL DETECTION AND QUANTIFICATION OF CESIUM DERIVATIVES - The invention relates to an apparatus and to a process for the detection and/or quantification of cesium ions Cs | 09-23-2010 |
20100244863 | FLUID SENSOR, REFRIGERANT LEAKAGE DETECTION DEVICE, REFRIGERATION SYSTEM, AND REFRIGERANT LEAKAGE DETECTION METHOD - It is possible to detect refrigerant leakage while pinpointing the location where refrigerant leakage is occurring in a refrigerant circuit of a refrigeration system. A fluid sensor ( | 09-30-2010 |
20100277187 | SENSOR MECHANISM AND METHOD FOR THE PRODUCTION THEREOF - A sensor device and a method of making a sensor device. The sensor device includes a coil arrangement including a primary coil and a secondary coil. A conduit that is traversable by a flow in a figure-8 pattern is disposed as a yoke about the coil arrangement such that the coil arrangement is disposed in a vicinity of an intersection of the figure-8 pattern. The conduit includes at least two parts. A parting plane of the two parts is configured so as to enable the coil arrangement to be slip-fit mounted on the conduit before the two parts are joined together. | 11-04-2010 |
20100283490 | DETERMINING FORMATION PROPERTIES WHILE DRILLING - The present disclosure relates to a method to determine a characteristic of a subsurface formation using a downhole logging tool. A downhole logging tool having the ability to make substantially concurrent disparate measurements on the subsurface formation is provided and substantially concurrent disparate measurements on the formation using the downhole logging tool are made. Those measurements are used to solve a system of equations simultaneously and the solution to the system of equations is used to determine the characteristic of the subsurface formation. | 11-11-2010 |
20100301882 | Method for operating a water softening system having two calibration characteristics and associated water softening system - In summary, the invention proposes to provide two different conversion modes for determining the water hardness on the basis of the conductivity of raw water in a water softening device ( | 12-02-2010 |
20110001499 | MOISTURE SENSOR - A novel and useful sensor and sensing system employs a transmission electrode which provides a length of transmission electrode that is greater than the physical length of the sensor, allowing for the effective and accurate determination of the moisture content of a volume of material using high-frequency measurement methods. The construction of the sensor allows the sensor to be directly inserted into the material, without requiring excavation or backfilling of the sensors in the material. The sensor can be employed as part of a sensing system, with one or more sensors preferably being managed by a field node, which in turn, interoperates with a system master node. | 01-06-2011 |
20110043230 | MOISTURE MONITORING DEVICE AND METHOD - A moisture monitoring device that measures the dielectric constant of a material to provide an indication of the moisture content of a material. The moisture monitoring device can provide an instantaneous indication of the moisture content of a material (e.g., soil). The moisture monitoring device can include a number of interchangeable decorative to allow a user to customize the appearance of the device. The moisture monitoring device can be used in conjunction with a moisture monitoring system that can be used to control a watering system (e.g., an irrigation system). A method for providing an instantaneous indication of the moisture content of a material is also disclosed. | 02-24-2011 |
20110057672 | COAXIAL SENSOR FOR TIME-DOMAIN REFLECTOMETRY - A sensor is provided for testing a porous medium using time-domain reflectometry. The sensor includes an inner conductor, an outer conductor and a ceramic material interposed there-between. The inner conductor runs along a longitudinal axis of the sensor. The outer conductor has a hollow axial interior and is oriented around the inner conductor. The ceramic material is solid, porous, exhibits a known liquid release curve and fills an axial gap between the inner and outer conductors. A dielectric substance can be applied to an exterior surface of the inner conductor to enable the testing of a porous medium which is highly dissipative. The inner conductor can be permeable and have a hollow axial interior. A hydrophobic material can also be interposed between the inner and outer conductors. | 03-10-2011 |
20110109333 | Detection of Water Ingress to an Apparatus by Resistance Measurements Between Two Electrodes - An apparatus including a first electrical arrangement that has a resistance between a first electrode and a second electrode in the absence of water and has a different resistance between the first electrode and the second electrode in the presence of water; a mechanical arrangement configured to maintain the presence of water at the first electrical arrangement; and a detecting electrical arrangement configured to detect a change in the resistance of the first electrical arrangement. | 05-12-2011 |
20110115506 | Test Body, Test Arrangement, Method For Manufacturing Of A Test Body, And Method For Determining A Moisture Content Of The Insulation Of A Power Transformer During Drying Thereof - A test body for use in determining moisture content in a laminated insulation of a power transformer by measuring a dielectric frequency response of the test body. The test body has a laminated structure of the same material as the laminated insulation, and has a shape and a size to obtain moisture content characteristics that resembles the moisture content characteristics of the laminated power transformer insulation. The test body further includes electrodes, which are embedded in the laminated structure. | 05-19-2011 |
20110187393 | MOISTURE DETECTION SENSORS FOR BUILDING STRUCTURES - A moisture detection sensor self-adhesive tape is used in a building structure to detect moisture penetration and includes a substrate of dielectric, hydrophobic material. Two elongate, parallel, conductors are secured to the top surface of the substrate and a protective layer of non-hygroscopic, water pervious material secured to the to the top surface of the substrate, over the conductors. A pressure sensitive mounting adhesive is placed on a bottom surface of the substrate and covered with a release sheet. The sensor may include moisture probes adapted to penetrate the protective layer, the respective conductors and the substrate and to extend into a building component to which the substrate has been adhered. The preferred moisture probe is a U-shaped metal staple configured to be driven in by a conventional power stapler. | 08-04-2011 |
20120038374 | MECHANISMS FOR DETECTING EXPOSURE TO WATER IN AN ELECTRONIC DEVICE - A component carrier has formed therein a water sensor, having a first patterned conductor piece formed in a metal layer of the component carrier and a bridge being an amount of water-soluble conductive glue filling an electrically insulating gap between the patterned conductor piece and another conductor in the carrier. This forms a conductive path between the patterned conductor piece and the another conductor. A sensing circuit is coupled to detect changes in impedance of the path. In another embodiment, a discrete component has a pair of terminals with a bridge being an amount of water-soluble conductive glue filling the electrically insulating gap between the terminals to form a conductive path whose impedance changes in response to coming into contact with a sufficient amount of water. Other embodiments are also described and claimed. | 02-16-2012 |
20120038375 | ELECTRODE ARRANGEMENT FOR MONITORING A BED - Equipment for indicating a bed-wetting in a bed comprising a bed-wetter sheet and a measuring- and control system. A measuring circuit is furnished to test whether the electrode in the bed-wetter sheet are intact, and afterwards to measure the conductivity in the normal state between the two from each other electrically isolated electrodes whereby the conductivity between the two electrodes will fall drastically by a bed-wetting, human fluids containing salt being spread on the sheet, and indicate the bed-wetting. The measuring circuit is furnished to as a part of a routine to enter into a resting state whereby the measurement is performed with a prearranged fixed time interval. | 02-16-2012 |
20120056633 | MOISTURE SENSOR - A novel and useful sensor and sensing system employs a transmission electrode which provides a length of transmission electrode that is greater than the physical length of the sensor, allowing for the effective and accurate determination of the moisture content of a volume of material using high-frequency measurement methods. The construction of the sensor allows the sensor to be directly inserted into the material, without requiring excavation or backfilling of the sensors in the material. The sensor can be employed as part of a sensing system, with one or more sensors preferably being managed by a field node, which in turn, interoperates with a system master node. | 03-08-2012 |
20120098555 | LIQUID DETECTION CABLE - Disclosed is a liquid detection cable that is capable of quickly detecting the presence of liquid and resetting, so that the liquid detection cable can be reused after removal from the presence of a liquid. The liquid detection cable uses a reactive layer that has not been doped with a conductive material, rather, a conductive layer is used adjacent the reactive layer, which allows the reactive layer to react quickly and reset after removal from the presence of the liquid. A braided binder is also provided between sensor wires and the conductive layer to provide a layer of insulation, so that the liquid detection cable does not provide false alarms when an external force is applied to the cable. | 04-26-2012 |
20120126838 | ELECTRICAL DEVICE FOR DETECTING MOISTURE - An electrical device for detecting moisture has a detection cable ( | 05-24-2012 |
20120139565 | MOISTURE SENSING - Measuring moisture content of a material under test. First and second sense voltages across a sense resistor are detected in response to application of respective first and second supply voltages across the sense resistor and the material under test. The material under test is electrically coupled to the sense resistor. A net sense voltage is determined by determining a difference between the second and first sense voltages. A resistance of the material under test is determined based on the net sense voltage, a predetermined resistance of the sense resistor, and the second supply voltage. A moisture content of the material under test is determined based on the resistance of the material under test. | 06-07-2012 |
20120200310 | WATER CONTENT DETECTION SENSOR - A water content detection sensor includes a circuit member in which low resistance conductors disposed in parallel to each other and a high resistance conductor connecting end portions of the respective low resistance conductors, a carrier body having a water-proof property and an insulating property, and a coating body having a water-proof property and an insulating property, the circuit portion being disposed between the carrier body and the coating body. A plurality of exposure holes is provided which expose the low resistance conductors at plural portions. When water content adheres between the exposure holes and the low resistance conductors are then short-circuited and a current value is made larger than that before the adhesion of the water content. When a small current passes, it is judged that the circuit is normal, and on the other hand, a large current passes, it is judged that water is generated. | 08-09-2012 |
20120293193 | WATER DETECTING APPARATUS - A water detecting apparatus, which comprises: at least one close loop circuit; and a water detecting circuit, for detecting if a resistance value for the close loop circuit is a predetermined value, to determine if any water exists on the close loop circuit. | 11-22-2012 |
20120313652 | Method and Apparatus for Differential Voltage Grid-Based Moisture Monitoring of Structures - A method and apparatus for differential voltage grid-based moisture monitoring of structures is provided. The method involves detecting a defect in a structural component, the structural component comprising a membrane for fluid impermeability, a deck for supporting the membrane, and a plurality of electrically conductive elements adjacent the membrane and electrically insulated from each other, by sensing the potential difference between a first element of the plurality of elements and a second element of the plurality of elements separated from the first element when there is an electrical potential between the deck and an electrically conductive fluid in contact with the first and second elements. The apparatus includes a switching circuit for connecting a voltage measuring circuit to the first and second elements, the voltage measuring circuit being operable to sense the potential difference between the first and second elements. | 12-13-2012 |
20130113505 | SENSOR FOR DETECTING LIQUID SPILLING - Present invention concerns generally to a sensor or a sensor system for detecting spilling of aqueous liquids, for instance in confined spaces were such is critical such in an airplane. The system of present invention is an early warning system or sentinel for the prevention of corrosion by corrosive liquids. Corrosion caused by corrosive liquids can rapidly change the surface properties of components in engineering structures, and that will finally endanger the functionality of structural parts. However, if monitoring technologies are in place providing continuous information on the presence of corrosive liquids, corrosion treatment and even corrosion prevention can start at a very early stage. Present invention provides such by early detection of corrosive liquids by extended sensors based on the collapse of percolation conductivity (COPC). The term collapse refers to the fact that the transition into the non-conducting state must not necessarily have the properties of a thermodynamically well-defined transition. | 05-09-2013 |
20130307570 | ABSORBENT ARTICLE COMPRISING A LIQUID DISCHARGE SENSOR - An absorbent article for absorbing liquid discharge of a wearer includes conductive loops each in an open loop shape having terminal ends for electrically communicating with opposing poles of an electric potential generator such that current flows around the full conductive loop between the terminal ends when a space defined within the open loop shape is dry and such that liquid discharge in the space defined within the open loop shape is able to cause a short circuit in the conductive loop so that the current flows around a reduced impedance path. The impedance change is measureable to determine a location relative to the terminal ends where the liquid discharge has caused the short circuit. The conductive loops are oriented such that the direction in which the current travels up an outward leg of the respective conductive loop is in substantially the opposite direction for a first conductive loop as for a second conductive loop. | 11-21-2013 |
20130321007 | ABSORBENT ARTICLE COMPRISING A LIQUID DISCHARGE DETECTION SENSOR - An absorbent article for absorbing liquid discharge of a wearer when worn in the crotch region includes an absorbent core for doing the absorbing of the liquid discharge. A conductive layer is in electrical contact with the absorbent core. The article includes at least one set of first and second electrical contacts secured in intimate physical and electrical contact with the conductive layer such that when an electric potential is applied between the first and second electrical contacts, an electric current travels between them and through the conductive layer in such a way so as to follow a first relatively high impedance path along the conductive layer when the absorbent core is dry and a relatively low impedance path when the absorbent core is wet. This system allows a system verification check, even in the dry state, and the determination of the extent of the wet portion of the absorbent core. | 12-05-2013 |
20140167791 | Resistive MEMS Humidity Sensor - A semiconductor device includes a substrate, an insulating film provided on a surface of the substrate, and a sensing film formed of a conductive material deposited on top of the insulating film. The sensing film defines at least one conductive path between a first position and a second position on the insulating film. A first circuit connection is electrically connected to the sensing film at the first position on the insulating layer, and a second circuit connection is electrically connected to the sensing film at the second position. A control circuit is operatively connected to the first circuit connection and the second circuit connection for measuring an electrical resistance of the sensing film. The sensing film has a thickness that enables a resistivity of the sensing film to be altered predictably in a manner that is dependent on ambient moisture content. | 06-19-2014 |
20140232419 | BARRIER FILM DEFECT DETECTING METHOD AND APPARATUS - A method for detecting a defect of a barrier film includes preparing a device including an electrode and a barrier film covering the electrode, allowing a charged medium to contact a surface of the barrier film, and measuring a change in a flow of current between the charged medium and the electrode. | 08-21-2014 |
20150061706 | RESISTIVE TYPE HUMIDITY SENSOR BASED ON POROUS MAGNESIUM FERRITE PELLET - The present invention relates to a process for preparing a humidity sensor based on resistive type porous Magnesium Ferrite (MgFe | 03-05-2015 |
20150137837 | TRANSPARENCY HAVING MOISTURE SENSORS - A transparency, e.g. an aircraft laminated windshield, includes one or more moisture sensors to monitor moisture penetration to monitor performance of the moisture barrier. The moisture sensor includes a moisture corrodible article or sensor element, e.g. a strip or wire, which changes resistance as a function of corrosion. The sensor element can also include two dissimilar metals, e.g. a bimetal sensor element, or two similar metals having different physical dimensions. With the information provided by the moisture sensors performance of the windshield is available to schedule timely repair or replacement of the windshield that is performing outside of acceptable limits. | 05-21-2015 |
20150377810 | APPARATUS AND METHOD FOR PREVENTING MALFUNCTION IN AN ELECTRONIC DEVICE - A method for operation of an electronic device and an electronic device are provided. The method includes determining if an object is detected at a first terminal and a second terminal among a plurality of terminals of an ear jack. If the object is detected, the impedance of the second terminal is calculated, and a type of the object is determined according to the calculated impedance. | 12-31-2015 |
20160033356 | AIR DATA PROBE WITH FLUID INTRUSION SENSOR - An air data probe includes a stationary housing assembly, an air data measurement unit, and a fluid sensing unit disposed proximate to an interface between the housing assembly and the air data measurement unit. The air data measurement unit is rotatable about a longitudinal axis of the air data probe, relative to the stationary housing assembly. The fluid sensing unit includes a second electrically conductive sensing surface physically and dielectrically spaced from a first sensing surface. | 02-04-2016 |
20160041113 | INTEGRATED ELECTRONIC DEVICE FOR MONITORING HUMIDITY AND/OR ENVIRONMENTAL ACIDITY/BASICITY AND/OR CORROSION - An integrated electronic device | 02-11-2016 |
20160077029 | DETECTING MOISTURE WITH AN ANTENNA - Methods and systems may be provided that detect moisture with an antenna. Electrical impedance at the antenna may be detected by an impedance sensor. Moisture may be detected based on the impedance at the antenna. | 03-17-2016 |
20160161431 | FIELD REPLACEABLE DESICCANT CARTRIDGE AND DEVICE, METHOD AND SYSTEM THEREFOR - A field replaceable desiccant cartridge and device, method and system there for is provided. The cartridge comprises: a housing comprising an insertion end configured to removably mate with an aperture of a device, the insertion end configured to generally prevent moisture from entering the device when mated; a desiccant located in the housing; a circuit located within the housing, the circuit in contact with the desiccant, the circuit configured to change resistance as the desiccant changes in moisture content; one or more electrodes located at an exterior of the insertion end, the one or more electrodes in contact with the circuit; and, one or more holes through the insertion end, configured to expose the desiccant to an exterior of the housing so that the desiccant can absorb moisture there from. Devices configured with the cartridge can report moisture levels to a server, which can track problems associated with moisture in the devices. | 06-09-2016 |
20160178551 | SYSTEM AND METHOD FOR FLUID SENSING | 06-23-2016 |
20190145920 | DRYNESS/WETNESS RESPONSIVE SENSOR HAVING FIRST AND SECOND WIRES SPACED 5 nm TO LESS THAN 20 um APART | 05-16-2019 |
324695000 | Where the object moves while under test | 3 |
20090201035 | Contactless detection cell with reduced detection channel cross-section - A contactless detection cell ( | 08-13-2009 |
20110012626 | Correction for gas entrained water analyzers - An apparatus for measuring a water content in a multiphase fluid flow stream is provided. The apparatus comprises a measurement section configured to obtain a series of electrical measurements of the multiphase fluid flow stream over a first predetermined time interval, and determine a minimum electrical measurement Fmin_baseline from the series of electrical measurements. The measurement section also is configured to calculate a running average of the frequency (Fmin_gas_pattern) from the series of electrical measurements indicative of a change in a gas flow pattern of the multiphase fluid flow stream over a second predetermined time interval. The measurement section further is configured to calculate a corrected electrical measurement F_calc_WC for determining the water content in the multiphase fluid flow stream by subtracting the minimum electrical measurement Fmin_gas_pattern from the minimum electrical measurement Fmin_baseline. | 01-20-2011 |
20130265063 | METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF WATER IN A CURRENT OF LIQUID HYDROCARBONS - Provided is an apparatus for detecting the presence of water in a current of liquid hydrocarbons. The apparatus comprises at least one pair of electrodes for detecting the presence of water in a sample zone in the current of liquid hydrocarbons located therebetween; alternating current generating circuitry for generating an alternating current between the electrodes; measuring circuitry for measuring the electrical impedance of the current of liquid hydrocarbons between the electrodes; and a processor for collecting data from the measuring circuitry, processing the data and outputting the data for use in detecting the presence of water in the current of liquid hydrocarbons. A method is provided for detecting the presence of water in a current of liquid hydrocarbons and for quantifying the amount of free water present in a current of liquid hydrocarbons. An apparatus is provided for quantifying the amount of free water present in a current of liquid hydrocarbons. | 10-10-2013 |
324696000 | With a probe structure | 11 |
20080211521 | Moisture Content Sensor and Related Methods - A moisture content sensor comprising a signal source ( | 09-04-2008 |
20090206853 | Sensor for sensing moisture in soils - A sensor for sensing the moisture level in soil and changes in the moisture content. An improved liner improves the response of the sensor. | 08-20-2009 |
20100019785 | METHOD AND APPARATUS FOR INSPECTING ADHESIVE QUALITY - A method and apparatus inspect a quality of an adhesive material used for joining a pair of work surfaces during a weld-bonding process. A pair of work pieces are at least partially bonded by a layer of the adhesive material, and the dynamic displacement of one or both electrodes is measured through a duration of the resistance welding process to determine relative moisture content of the adhesive. A control action is executed when the dynamic displacement exceeds a stored threshold value. The apparatus includes a welding device having a pair of electrodes for providing a clamping force and an electrical current necessary for forming the welded joint, a sensor for measuring a dynamic displacement of at least one of the pair of electrodes and/or another portion of the welding device during formation of the welded joint. A controller has an algorithm for determining a relative moisture using the dynamic displacement. | 01-28-2010 |
20100026324 | SOIL MOISTURE SENSOR WITH LONG BATTERY LIFE - A power-efficient soil moisture sensor includes:
| 02-04-2010 |
20100109685 | WIRELESS MOISTURE MONITORING DEVICE AND METHOD - A wireless moisture monitoring device that measures the dielectric constant of a material to provide an indication of the water or moisture content of a material. The wireless moisture monitoring device can monitor the moisture level of a material constantly, periodically, or the device can be configured to provide an instantaneous indication of the moisture content of the material (e.g., soil). The moisture monitoring device can be used in conjunction with a moisture monitoring system that can be used to control a watering system (e.g., an irrigation system). A method for providing an instantaneous indication of the moisture content of a material is also disclosed. | 05-06-2010 |
20100225338 | Probe and arrangement for determining the moisture content or conductivity of a material - In a probe and an arrangement comprising a probe for determining a moisture content or a conductivity of a material, comprising a base body including two electrical conductors of which at least one has the form of a tape, the base body includes an electrically insulated area in which at least one of the conductors is disposed. | 09-09-2010 |
20100321046 | WIPEABLE CONDUCTIVITY PROBE AND METHOD OF MAKING SAME - A conductivity sensor is disclosed that comprises a forked electrode support that includes a first opposing arm and a second opposing arm spaced apart by a slot. Both the first arm and the second arm include a plurality of electrodes embedded in each arm. The first and second arms and the slot are capable of retaining a volume of fluid within the volume defined by the arms and the slot such that the conductivity of the fluid in the slot can be determined. The conductivity sensor is wipeable by a reciprocating wiper assembly positioned adjacent the forked electrode support such that the wiper element can travel through the slot and remove contaminants from the slot and the plurality of electrodes in each of the first and second arms. Also disclosed are methods of making the conductivity sensor. | 12-23-2010 |
20110273196 | Long Range, Battery Powered, Wireless Environmental Sensor Interface Devices - Long range, battery powered, wireless environmental sensor interface devices that can be connected to a plurality of sensors and wirelessly communicate the sensor readings back to a central collection device or Internet terminal. Instead or additionally, sensors can be integrated with the device for added efficiency. The devices incorporate a rugged enclosure and an internal power supply that allows them to be placed in harsh environmental conditions and operate for multiple years without maintenance due to unique power-saving design features. The RF circuitry is specially optimized for long-range outdoor communications of small quantities of data. Line-of-sight communication range of several miles is possible with this device. Various embodiments are disclosed. | 11-10-2011 |
20120074967 | MOISTURE DETECTION SENSORS FOR BUILDING STRUCTURES - A moisture detection sensor is used in a building structure to detect moisture penetration is a flat self-adhesive tape. It includes a substrate of dielectric, hydrophobic material. Two elongate, parallel, conductors are secured to the top surface and a protective layer of non-hygroscopic, water pervious material secured over the conductors. A pressure sensitive adhesive on a bottom surface of the substrate is covered with a release sheet. The sensor may include moisture probes which penetrate the protective layer, the respective conductors and the substrate and to extend into a building component to which the substrate has been adhered. Each probe is made from a conductive, corrosion resistant material. This is particularly useful with water absorbent building materials, such as wood, where the surface may appear dry, but the body is impregnated with water. The preferred moisture probe is a U-shaped metal staple driven by a power stapler. | 03-29-2012 |
20130099806 | Long Range, Battery Powered, Wireless Environmental Sensor Interface Devices - Long range, battery powered, wireless environmental sensor interface devices that can be connected to a plurality of sensors and wirelessly communicate the sensor readings back to a central collection device or Internet terminal. Instead or additionally, sensors can be integrated with the device for added efficiency. The devices incorporate a rugged enclosure and an internal power supply that allows them to be placed in harsh environmental conditions and operate for multiple years without maintenance due to unique power-saving design features. The RF circuitry is specially optimized for long-range outdoor communications of small quantities of data. Line-of-sight communication range of several miles is possible with this device. Various embodiments are disclosed. | 04-25-2013 |
20130214803 | MOISTURE SENSOR - A novel and useful sensor and sensing system employs a transmission electrode which provides a length of transmission electrode that is greater than the physical length of the sensor, allowing for the effective and accurate determination of the moisture content of a volume of material using high-frequency measurement methods. The construction of the sensor allows the sensor to be directly inserted into the material, without requiring excavation or backfilling of the sensors in the material. The sensor can be employed as part of a sensing system, with one or more sensors preferably being managed by a field node, which in turn, interoperates with a system master node. | 08-22-2013 |