Entries |
Document | Title | Date |
20080210016 | Using Pulsed-Wave Ultrasonography For Determining an Aliasing-Free Radial Velocity Spectrum of Matter Moving in a Region - Using pulsed-wave (PW) ultrasonography for determining an aliasing-free radial velocity spectrum of matter moving in a region. Includes: transmitting into the region a plurality of pulse trains of sound waves at two or more different pulse repetition frequencies; spectrally analyzing each pulse train, for evaluating a Doppler frequency spectrum associated with each pulse train; combining frequency components of Doppler frequency spectrum of each pulse train, for obtaining aliasing-free instantaneous Doppler frequency spectrum for the region; using Doppler effect for translating aliasing-free frequency spectrum to aliasing-free radial velocity spectrum. Implementable using pulsed-wave Doppler (PWD), color flow Doppler (CFD), tissue Doppler imaging (TDI), or pulsed-wave (PW) ultrasonography. Applicable to liquid or/and solid forms of matter, moving in a two- or three-dimensional region. Matter is any substance or material, composed of organics or/and inorganics, which is part of a non-living object, or, part of a human or animal subject. | 09-04-2008 |
20080229846 | Method for start-up and/or monitoring of an inline measuring device - The measuring device includes a flow measuring transducer, through which a medium to be measured flows during operation. For monitoring an installed position of the flow transducer, the method of the invention provides, on the basis of application of a suitable tilt sensor, for ascertaining an instantaneous inclination of the measuring transducer corresponding to a tilt of at least one principal axis of inertia of the measuring transducer relative to at least one reference axis. | 09-25-2008 |
20080264180 | System and method for measuring volume of ingested fluid - An audio sensor and receiver detect, discriminate and count the number of liquid swallows to determine the volume of fluid ingested. | 10-30-2008 |
20080276724 | SYSTEMS AND METHODS OF A TRANSDUCER HAVING A PLASTIC MATCHING LAYER - Systems and methods of a transducer having a plastic matching layer. At least some of the illustrative embodiments are transducers comprising a housing (having a proximal end, a distal end and an internal volume, the housing configured to couple to a spoolpiece of an ultrasonic meter), a plastic matching layer that has an external surface and an internal surface (the plastic matching layer seals to and occludes the distal end of the housing), and a transducer element abutting the internal surface of the plastic matching layer. | 11-13-2008 |
20080307893 | System and Method for Determining Atomization Characteristics of Spray Liquids - A system and method for determining the atomization characteristics of fluids being emitted by a nozzle is disclosed. In one embodiment, a fluid is emitted through a nozzle while simultaneously sensing vibrations occurring within the nozzle. The vibrations provide information about the atomization characteristics of the fluid. By comparing the sensed vibrations to vibration patterns produced by known fluids through the same or a similar nozzle, the atomization characteristics of the fluid being tested can be predicted. In one embodiment, for instance, the atomization characteristics of a fluid may be determined as a function of velocity or flow rate through the nozzle. | 12-18-2008 |
20090000391 | Method and Device for Measuring a Escaping Liquid - A method for measuring liquid discharging through an outlet opening includes transmitting and directing a measuring signal so that the discharging liquid crosses it and receiving and analyzing the measuring signal by a receiver, wherein the measuring signal has a measuring signal beam width that is greater than the outlet opening of the discharging liquid. A measuring device is also disclosed. | 01-01-2009 |
20090000392 | FLOW SIMULATING CIRCUIT FOR TESTING OF FLOWMETERS - A simulating circuit ( | 01-01-2009 |
20090044635 | Extractor Tool for an Ultrasonic Flow Meter - An extractor tool for an ultrasonic flow meter is disclosed. Some system embodiments comprise a bracket configured to couple to a spoolpiece of an ultrasonic flow meter and a tube inserted through and coupled to the bracket. The tube is configured to seal to the spoolpiece and permit a transducer to be selectively installed and removed therethrough. | 02-19-2009 |
20090100939 | Method And Apparatus For Force Balancing - A Coriolis flow meter comprising a pair of flow tubes ( | 04-23-2009 |
20090133506 | METHOD OF CONSTRUCTION FOR A LOW COST PLASTIC ULTRASONIC WATER METER - There is described an ultrasonic flow meter comprising a pipe having two ends, electronic circuitry, a first enclosure housing the electronic circuitry, a second enclosure housing the pipe, and a plurality of ultrasonic transducers attached to an external surface of the pipe in the second enclosure. The first enclosure is watertight, whereas the second enclosure is not watertight. The two ends of the pipe protrude from the second enclosure. Each transducer is covered by a respective cap and sealed from water ingress. Each transducer is connected to the electronic circuitry by a respective pair of wires. | 05-28-2009 |
20090173167 | FLOWMETER - A Coriolis flowmeter includes an oscillator for oscillating a fluid pipe that forms a flow path for allowing a measurement fluid to flow; first and second detectors that are disposed to be spaced apart from each other along the flow path of the fluid pipe so as to detect a state of oscillation of the fluid pipe; and a calculator for calculating a mass flow rate of the measurement fluid that passes through the flow path of the fluid pipe on the basis of a relative amount of the states of oscillation that are detected by the first and second detectors. The fluid pipe includes an inner pipe made of a fluororesin whose inner circumferential surface is in contact with the flow path, and an outer pipe having fibers that are arranged in order to surround an outer circumferential surface of the inner pipe and a resin that is cured in a state of close adhesion between the fibers arranged in order, and having an elastic modulus larger than that of the inner pipe. | 07-09-2009 |
20090249887 | Process Fluid Sound Speed Determined by Characterization of Acoustic Cross Modes - An apparatus measures a speed of sound (SOS) in a process flow by characterizing low order acoustic cross modes in the process flow in a conduit. The apparatus includes transducers on the conduit, spaced from each other around the circumference of the conduit. The transducers generate acoustic input signals in the process flow over a range of frequencies. The apparatus includes strain sensors disposed on the conduit, spaced from each other around the cross-sectional circumference of the conduit. An SOS processor is responsive to the transducers and sensors, and is configured to identify cross-mode frequencies of the conduit and to derive therefrom the SOS in the process flow. An entrained air processor is coupled to the SOS processor to indicate a level of entrained air in the process flow. | 10-08-2009 |
20090277279 | METHOD OF FINDING A THIGH SUPPORT HAVING GEOMETRY, RIGIDITY, AND ELASTICITY FOR MOST OPTIMAL BLOOD CIRCULATION IN THE LOWER EXTREMITIES OF A SEATED PERSON - A method of finding a thigh support for most optimal blood circulation in the lower extremities of a seated person consisting of measuring a blood-circulation parameter such as blood-flow velocity through the lower extremities of a seated person under different seating conditions, including those with or without the use of any thigh-supporting means. It has been proven that with the use of a thigh-supporting means, the measured blood-circulating parameter was much better than in a person seated without the use of a thigh-supporting means. Blood-flow velocity through the lower extremities of a person seated on the aforementioned seating device was measured by determining the Doppler shift in the frequency of returning ultrasound waves. | 11-12-2009 |
20090314102 | POLARIZATION BASED FIBER OPTIC DOWNHOLE FLOWMETER - A flow monitoring system includes a pipe for transporting a fluid therethrough. An optical fiber generally spirals about the pipe along a longitudinal portion having a predetermined length to serve as a single transducer for detecting flow information from the longitudinal portion. A linear polarizer/analyzer circuit communicates with the optical fiber. A light source communicates with the linear polarizer/analyzer circuit and generates a light signal along the optical fiber at a frequency greater than a period of a disturbance to flow past the predetermined length of the transducer. A reflector is disposed along the optical fiber for reflecting the light signal along the optical fiber. An optical detector communicates with the linear polarizer/analyzer circuit. The optical detector determines from the light signal dynamic events along the optical fiber indicative of flow disturbances passing by the transducer. | 12-24-2009 |
20100005900 | System and Method of an Acoustic Flow Meter With Dual Flow Measurements - Acoustic flow meter with dual flow measurements. At least some of the illustrative embodiments are flow meters comprising a spool piece that defines a central passage, a first plurality of transducer pairs mechanically coupled to the spool piece, a second plurality of transducer pairs mechanically coupled to the spool piece, and meter electronics electrically coupled to the first and second plurality of transducer pairs (the meter electronics configured to determine a first value indicative of fluid flow through the central passage, the first value determined using only signals of the first plurality of transducer pairs). The meter electronics further configured to determine a second value indicative of fluid flow through the central passage, the second value determined using only signals of the second plurality of transducer pairs. | 01-14-2010 |
20100071477 | Flow Velocity and Pressure Measurement Using a Vibrating Cantilever Device - Measurement apparatus having a cantilever and a fluid flow channel, the cantilever being positioned in the channel so that it projects in a direction parallel to the direction of fluid flow. In an associated method, the cantilever is positioned in a fluid flow channel such that the cantilever extends parallel with the direction of fluid flow in the channel. Fluid is caused to flow in the channel at a known velocity. The resonant frequency of the cantilever is measured at one or more velocities of fluid flow and calculating the spring constant of the cantilever using the measured resonant frequency or frequencies. If the spring constant of the cantilever is known, the measurement of resonant frequency of the cantilever is used to determine the velocity of the fluid flow. | 03-25-2010 |
20100154560 | METHOD FOR MANUFACTURING AN ULTRASONIC TRANSDUCER - A method for manufacturing an ultrasonic transducer for use in a fluid medium. At least one piezoelectric transducer element is joined directly or indirectly to at least one matching member for promoting vibration coupling between the piezoelectric transducer element and the fluid medium. A matching member is used which has at least one porous molding of a polymer. | 06-24-2010 |
20100186521 | METER WITH STANDARDISED CAPSULE-TYPE ULTRASOUND MEASURING CELL - The invention relates to a method of standardizing a capsule type ultrasound measurement cell ( | 07-29-2010 |
20100269596 | GAS METER DEVICE AND GAS SUPPLY SYSTEM USING THE DEVICE - A gas meter device is provided which is configured in a manner that even if a user takes an unauthorized action such as the removal of a gas meter device in order to use gas without authorization, since the generation of a particular flow-rate change profile different from a normal flow-rate change profile of a gas appliance is detected, the sign of the tamper of the gas can be detected, whereby the tamper of the gas can be prevented. The gas meter device includes an appliance determining unit | 10-28-2010 |
20110000310 | GAS METER AND GAS SECURITY SYSTEM - The present invention is intended to make it possible to set security functions as necessary depending on usage environment, etc. and to improve the security functions; a function setting section | 01-06-2011 |
20110011185 | Flowmeter and manifold therefor - An acoustic displacement flowmeter for determining flow rate of a fluid has a fluid flow line defining a flow path for the fluid. The fluid flow line has an inlet and an outlet. A controllable valve is positioned along the fluid flow line for opening and closing the flow path as desired, and an acoustic displacement transducer having a fluid port is coupled to the fluid flow line upstream from the controllable valve. The outlet of the fluid flow line extends through a wall isolating fluid exhausted from the outlet of the fluid flow line from electrical and/or mechanical components residing inside the flowmeter, thereby preventing the exhausted fluid, if explosive, from contacting such electrical and/or mechanical components which may act as potential ignition sources. Preferably, a manifold having a rigid body is provided in which the fluid flow line is formed. An acoustic displacement transducer (ADT) chamber wall is formed on the manifold body, and has an ADT chamber inlet port formed therein, and the fluid flow line has a branched portion connecting the fluid flow line to the ADT chamber inlet port. The outlet of the fluid flow line extends through a wall formed in the manifold body to isolate fluid exhausted from the outlet of the fluid flow line from electrical and/or mechanical components residing inside the flowmeter. | 01-20-2011 |
20110016984 | Multiphase Coriolis Flowmeter - A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to determine a first flow rate of a first phase within a two-phase flow through the flowtube and determine a second flow rate of a second phase within the two-phase flow. | 01-27-2011 |
20110023621 | SMOOTH BORE, CHORDAL TRANSIT-TIME ULTRASONIC METER AND METHOD - An apparatus for analyzing fluid flow in a pipe includes an ultrasonic flowmeter having a plurality of transducers. The apparatus includes a flow element having a completely smooth bore through which the fluid flows, and a plurality of cavities, each of the cavities has one of the plurality of transducers disposed in it and which is in communication with the fluid flowing through the bore. An apparatus for analyzing fluid flow in a pipe includes an ultrasonic flowmeter having a plurality of transducers. The apparatus includes a flow element having a bore with an internal diameter and a surface through which fluid flows, a plurality of cavities each of which has an opening in the surface. Each of the cavities has one of the plurality of transducers disposed in it. | 02-03-2011 |
20110023622 | DUAL PICK-OFF VIBRATORY FLOWMETER - A dual pick-off vibratory flowmeter ( | 02-03-2011 |
20110107846 | Wind Energy Installation Comprising a Wind Speed Measuring System - A wind energy installation is disclosed. The wind energy installation includes a rotor with at least one rotor blade. The wind energy installation includes at least one wind speed measuring system. The at least one wind speed measuring system optically measures the vibrations of an optical fiber due to vortex shedding. | 05-12-2011 |
20110120229 | Messgerat - A measuring device for registering at least one measured value of at least one process variable. The measuring device comprises a measuring tube. The measuring tube has at least one T-joint, on which at least one measurement transmitter is arranged, wherein the measuring tube together with the T-joint is monolithic, and wherein the T-joint is producible from the measuring tube at least partially by a plastic deformation method. | 05-26-2011 |
20110120230 | DEVICE FOR MEASURING THE VOLUME FLOW RATE OF A CONTROLLED MEDIUM IN A PIPELINE - A device for measuring the volume flow rate of the controlled medium in a pipeline comprises first and second transmitting-receiving radiators installed and spaced on the pipeline and alternately fed with ultrasonic signals. Received after they have passed in and counter the direction of the flow, the signals are digitized and stored. Times of signal transmission in and counter the direction of the flow of the medium and the difference of the times are calculated. Providing an additional unit for the time difference calculation, applying a correlation measuring method and increasing the sampling rate enhance the accuracy in measuring the volume. | 05-26-2011 |
20110120231 | ULTRASONIC SENSOR OF A MEASURING SYSTEM FOR DETERMINING AND/OR MONITORING FLOW OF A MEASURED MEDIUM THROUGH A MEASURING TUBE - An sensor of a measuring system for determining and/or monitoring the flow of a measured medium through a measuring tube, wherein the ultrasonic sensor is seated in a shiftable manner in a sensor housing parallel to a first inner surface of the sensor housing. The ultrasonic sensor has a coupling element and an electromechanical ultrasound transducer element, wherein the ultrasonic sensor can, at least at times, at least partially, lie against the first inner surface of the sensor housing, and that a guide hanger at least partially lies against a second inner surface of the sensor housing lying opposite the first inner surface, wherein the ultrasonic sensor is seated in a shiftable manner essentially perpendicularly to the first inner surface in the guide hanger, and wherein a spring between the guide hanger and ultrasonic sensor acts essentially perpendicularly to the first inner surface. | 05-26-2011 |
20110162460 | Ultrasonic Flow Meter And Transducer Assembly With Isolated Transformer Capsule - In an embodiment, an ultrasonic flow meter comprises a spool piece including a throughbore and a transducer port extending from the outer surface of the spool piece to the throughbore. In addition, the ultrasonic flow meter comprises a transducer assembly disposed in the transducer port. The transducer assembly has a central axis and comprises a transducer holder having a first end proximal the throughbore of the spool piece, and a second end distal the throughbore of the spool piece. Further, the transducer assembly comprises a piezoelectric capsule including a piezoelectric element. The piezoelectric capsule is coupled to the transducer holder and extends generally axially from the first end of the transducer holder. Still further, the transducer assembly comprises a transformer capsule including a transformer. The transformer capsule is coupled to the transducer holder and is axially spaced apart from the piezoelectric capsule. | 07-07-2011 |
20110162461 | Ultrasonic Flow Meter With Transducer Assembly, And Methods of Manufacturing The Same - A transducer assembly for an ultrasonic flow meter comprises a piezoelectric capsule. In an embodiment, the piezoelectric capsule includes a housing having a central axis, a first end, a second end opposite the first end, and a first inner chamber extending axially from the first end. In addition, the piezoelectric capsule includes a piezoelectric element disposed in the first inner chamber. Further, the piezoelectric element includes a plurality of spacers disposed in the first inner chamber between the piezoelectric element and the housing. | 07-07-2011 |
20110162462 | Ultrasonic Flow Meter With Transducer Assembly Having a Rotatable Receptacle and Elbow Connector - An ultrasonic flow meter for measuring the flow of a fluid through a pipeline. In an embodiment, the flow meter comprises a spool piece including a throughbore and a transducer port extending to the throughbore. In addition, the flow meter comprises a transducer assembly disposed in the transducer port. The transducer assembly comprises a piezoelectric capsule including a piezoelectric element. Further, the transducer assembly comprises a transformer capsule including a transformer. The transformer capsule is coupled to the piezoelectric capsule. Still further, the transducer assembly comprises a receptacle capsule coupled to the transformer capsule. The receptacle capsule includes a receptacle housing and a receptacle coaxially disposed within the receptacle housing. The receptacle is electrically coupled to the transformer. Moreover, the receptacle is rotatable relative to the receptacle housing between a first position and a second position. | 07-07-2011 |
20110162463 | Ultrasonic Flow Meter Having A Port Cover Assembly - An ultrasonic flow meter for measuring the flow of a fluid through a pipeline. In some embodiments, the ultrasonic flow meter includes a spool piece, a transducer assembly, and a port cover assembly. The spool piece has a throughbore and a transducer port extending between the throughbore and an outer surface of the spool piece. The transducer assembly is disposed within the transducer port and includes a transformer, a piezoelectric element, and an electrical coupling therebetween. The port cover assembly is coupled to the transducer assembly. The port cover assembly receives a cable coupled to the transducer assembly and is spring-loaded to bias the port cover assembly toward the transducer assembly to resist the cable from being electrically uncoupled from the transducer assembly. | 07-07-2011 |
20110167926 | MULTI-LAYERED FLOW PASSAGE MEMBER AND ULTRASONIC WAVE FLUID MEASURING DEVICE - An objective of the invention is to provide a multilayered flow passage member that enhances fluid measurement accuracy of an ultrasonic fluid measurement apparatus and an ultrasonic fluid measurement apparatus using the multilayered flow passage member. When fusible projections | 07-14-2011 |
20110203387 | Method and Apparatus for Measuring Parameters of a Fluid Flowing within a Pipe Using a Configurable Array of Sensors - An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a single sheet of piezoelectric film material wrapped around at least a portion of the pipe and an array of sensors disposed at different locations on the film material. Each of the sensors provides a signal indicative of pressure within the pipe at a corresponding axial and/or circumferential location of the pipe. The sensors are selectively configurable to provide the pressure signals. The signals are processed to determine the parameter. The array of sensors is configurable in response to different criteria. The criteria includes at least one of the parameter of the fluid to be output, an input signal specifying sensors to be selected, a predetermined configuration based on the parameter to be determined, and in response to a previously determined parameter of the fluid. | 08-25-2011 |
20110209558 | ULTRASONIC FLOW METER - An ultrasonic flow meter includes a first ultrasonic sensor, a second ultrasonic sensor, a volume-flow operation portion, a temperature operation portion, a pressure operation portion, and a correction operation portion. The ultrasonic sensors transmit and receive a plurality of ultrasonic waves of different frequencies and are disposed on opposite sides of a flow channel in which fluid flows. The volume-flow operation portion calculates a volume flow of the fluid based on a propagation time difference of the ultrasonic wave. The temperature operation portion analyzes signals from one of the ultrasonic sensors and calculates a temperature of the fluid. The pressure operation portion analyzes signals from one of the ultrasonic sensors and calculates a pressure of the fluid. The correction operation portion corrects the volume flow with the temperature and the pressure. | 09-01-2011 |
20110239779 | TWO-PHASE FLOW EXCITING FORCE EVALUATION METHOD AND TWO-PHASE FLOW EXCITING FORCE EVALUATION DEVICE - In a two-phase flow exciting force evaluation method of the present invention, the surface of one of a plurality of tube bodies ( | 10-06-2011 |
20110277557 | HOUSING ARRANGEMENT FOR ULTRASOUND FLOW METER AND ULTRASOUND FLOW METER - The present invention relates to a housing arrangement for an ultrasound flow meter, comprising a unipartite or multipartite housing ( | 11-17-2011 |
20110308327 | Apparatus and method for measuring relative speed between a fluid and a reference - A pair of electro-acoustic transducers, one functioning as a speaker and the other functioning as a microphone, are operatively coupled to a reference which in turn is in communication with a fluid. A regenerative frequency filtering loop is operatively coupled between the transducers and functions to apply amplified signal to the speaker and produce an acoustic signal which propagates through the medium. The acoustic signal is sensed by the microphone and coupled to the regenerative loop input. For certain frequencies, the spacing between the transducers together with the speed of propagation of sound through the fluid combine with the frequency filtering of the regenerative loop to cause the loop to regenerate at a frequency indicative of the relative speed between the reference and the fluid. | 12-22-2011 |
20110314932 | METHOD AND SYSTEM OF AN ULTRASONIC FLOW METER TRANSDUCER ASSEMBLY - Ultrasonic flow meter transducer assembly. At least one some of the illustrative embodiment are systems including: a spool piece that defines an exterior surface, a central passage, and a transducer port extending from the exterior surface to the central passage; and a transducer assembly coupled to the transducer port. The transducer assembly includes: a transition element coupled to the spool piece, the transition element having a first end disposed within the transducer port, and a second end residing outside the exterior surface; a piezoelectric module with a piezoelectric element, the piezoelectric module directly coupled to the first end of the transition element and the piezoelectric module disposed within the exterior surface; a transformer module with a transformer disposed therein, the transformer module directly coupled to the second end of the transition element and the transformer module disposed outside the exterior surface; and an electrical conductor disposed within a passage through the transition element, the electrical conductor couples the transformer to the piezoelectric element. | 12-29-2011 |
20110314933 | ULTRASONIC TRANSDUCER FOR USE IN A FLUID MEDIUM - An ultrasonic transducer is described for use in a fluid medium. The ultrasonic transducer includes at least one piezoelectric transducer element and at least one matching element for promoting an oscillation injection between the piezoelectric transducer element and the fluid medium. The ultrasonic transducer also includes a housing ( | 12-29-2011 |
20120017699 | APPLICATIONS FOR REAL-TIME MASS RATIO, MASS FLOW AND PARTICLE SIZE MEASUREMENT OF PARTICLE LADEN FLOWS - Techniques are provided for monitoring particle laden flows in a pipe, that include receiving signalling containing information about a parameter related to a particle laden flow in a pipe, the parameter including either (a) a sound level propagating through the particle laden flow in the pipe, or (b) a static pressure due to an acceleration of the particle laden flow in the pipe; and determining a measurement of a particle size and either a mass flow rate, or a particle-to-air mass ratio, or both the mass flow rate and the particle-to-air mass ratio, associated with the particle laden flow, based at least partly on a change in the parameter. | 01-26-2012 |
20120031198 | FLOW METER WITH ULTRASOUND TRANSDUCER DIRECTLY CONNECTED TO AND FIXED TO MEASUREMENT CIRCUIT BOARD - An ultrasound flow meter unit arranged to measure a fluid flow rate with one or more ultrasound transducers ( | 02-09-2012 |
20120042732 | MEASURING SYSTEM HAVING A MEASURING TRANSDUCER OF VIBRATION-TYPE - A measuring system comprises: a measuring transducer of vibration type, through which fluid flows during operation, and which produces oscillation signals corresponding to parameters of the flowing fluid; as well as a transmitter electronics (TE), which is electrically coupled with the measuring transducer, and serves for activating the measuring transducer and for evaluating oscillation signals delivered by the measuring transducer. The measuring transducer (MT) includes: At least one measuring tube ( | 02-23-2012 |
20120042733 | FLOW METER INCLUDING A BALANCED REFERENCE MEMBER - The present invention relates to a vibrating flow meter ( | 02-23-2012 |
20120055263 | FLOWMETER FOR DETECTING A PROPERTY OF A FLUID MEDIUM - A flowmeter for detecting at least one property of a fluid medium flowing through a flow tube, in particular a flow property, is described. The flowmeter has at least one ultrasonic sensor for detecting at least one first flow property of the fluid medium. In addition, the flowmeter has at least one differential pressure sensor for detecting at least one second flow property of the fluid medium. | 03-08-2012 |
20120060623 | METHOD OF OPERATING AN ULTRASONIC GAS FLOW METER AND AN ULTRASONIC GAS FLOW METER - The invention relates to a method of operating an ultrasonic gas flow meter, the ultrasonic gas flow meter including at least one signal evaluation unit, at least one memory, a piping through which gas can flow, at least one pair of ultrasonic transducers disposed on opposite sides of the piping and separated by a path inclined to a flow direction of the piping, wherein each ultrasonic transducer is connected to an electronic circuit to selectively act as an ultrasonic transmitter and an ultrasonic receiver, wherein the ultrasonic gas flow meter is adapted to detect a flow velocity of the gas flowing through the piping on the basis of differences between propagation times of ultrasonic signals transmitted and received between each pair of transducers and propagating in opposite directions along the path, wherein the method includes a test procedure for verifying the operation of electronics associated with the ultrasonic gas flow meter wherein, when the test procedure is activated, test signals are triggered which replace the propagation times measured with predefined propagation times associated with an assumed gas flow velocity and the output of the evaluation unit is detected to see how the calculated gas flow velocity compares to the assumed gas flow velocity. The invention also relates to a corresponding ultrasonic gas flow meter. | 03-15-2012 |
20120067135 | ULTRASONIC FLOW METER WITH A LIQUID DRAINAGE SYSTEM - An ultrasonic flow meter for measuring the flow of a fluid through a pipeline comprises a spool piece including a throughbore and a transducer port. The transducer port extends along a central axis from an open end at the throughbore to a closed end distal the throughbore. In addition, the flow meter comprises an acoustic transducer disposed in the transducer port. The transducer includes a piezoelectric element. Further, the flow meter comprises a drain port in fluid communication with the transducer port. The drain port is axially positioned between the open end and the closed end of the transducer port. Still further, the flow meter comprises a drain conduit having an inlet end coupled to the drain port and an outlet end opposite the inlet end. The drain port is configured to drain a liquid from the transducer port into the inlet end of the drain conduit. | 03-22-2012 |
20120090404 | ULTRASONIC MEASUREMENT OF FLOW VELOCITY - An ultrasonic measurement device ( | 04-19-2012 |
20120192656 | MEASURING SYSTEM FOR DETERMINING AND/OR MONITORING FLOW OF A MEASURED MEDIUM THROUGH A MEASURING TUBE BY MEANS OF ULTRASOUND - A measuring tube, a measuring system and a method for determining and/or monitoring flow through a measuring tube, comprising a measuring tube, on which ultrasonic transducers are releasably placeable. The ultrasonic transducers transmit and/or receive ultrasonic signals, which pass through the measuring tube approximately coaxially to the measuring tube axis. | 08-02-2012 |
20120247225 | ULTRASONIC FLOW METER HAVING CABLE SHROUD - A flow meter is disclosed having a meter body that is enveloped by a compliant shroud that protects transducers and transducer cables. The shroud forms a chamber between the shroud and meter body, and includes a releasable portion to allow access into the chamber. | 10-04-2012 |
20120260742 | ULTRASONIC TRANSDUCER FOR USE IN A FLUID MEDIUM - An ultrasonic transducer for use in a fluid medium is proposed. The ultrasonic transducer includes at least one transducer core which has at least one acoustic/electric transducer element, in particular a piezoelectric transducer element. The ultrasonic transducer furthermore includes at least one housing, at least one housing opening being at least partially sealed against the fluid medium with the aid of a sealing film which is connected to the transducer core. The sealing film has at least one expansion deformation which is configured to permit a relative movement between the transducer core and the housing. | 10-18-2012 |
20120266689 | APPARATUS CONFIGURED TO DETECT A PHYSICAL QUANTITY OF A FLOWING FLUID, AND A RESPECTIVE METHOD - Apparatus configured detect a physical quantity, for example a density, of a flowing fluid, the apparatus including: | 10-25-2012 |
20120266690 | ULTRASONIC FLOW METER DEVICE - In an ultrasonic flow meter device of the present invention, a compressive conductive fastener member including conductive parts is retained between a casing having a fluid passage in which a fluid which is a measurement target flows; ultrasonic transmitters/receivers mounted to the casing, and a control printed board disposed to face the ultrasonic transmitters/receivers, and in this state, the control printed board is fastened. Thereby, the ultrasonic transmitters/receivers are electrically connected to the control printed board without the use of lead wires. A cost increase can be suppressed, and an influence of an outside noise can be mitigated because of omission of the lead wires. Therefore, reliability of the ultrasonic transmitters/receivers can be improved. | 10-25-2012 |
20120272747 | FLOW RATE MEASURING DEVICE - [Problem] A flow rate measuring device in which guided waves are used, wherein the frequency of ultrasound is optimized; and energy injected from ultrasound transmission/reception elements is increased and the flow velocity sensitivity is raised; whereby the measurement accuracy is improved. | 11-01-2012 |
20120272748 | ULTRASONIC FLOWMETER - An ultrasonic flowmeter which can enhance measurement accuracy is provided, including ultrasonic transducers; a propagation time measurement block for measuring a propagation time elapsed before an ultrasonic wave transmitted from the ultrasonic transducer arrives at the ultrasonic transducer; a control block for determining a flow volume from the propagation time; correction calculation means for calculating a correction value based on characteristics of the ultrasonic transducers, a delay between transmission of an ultrasonic wave from the ultrasonic transducer and commencement of measurement of a propagation time, a delay between arrival of the ultrasonic wave at the receiving-side ultrasonic transducer and detection of the ultrasonic wave, and a difference between the measured and a true propagation times; and correction value selection means for selecting a correction value; and a propagation time correction block for correcting a propagation time. | 11-01-2012 |
20120279315 | WASTE WATER IN WATER DISTRIBUTION SYSTEM - The present invention discloses a non invasive and mobile device to detect and quantify water consumption in domestic or public water systems, wherein detection is achieved by a piezoelectric device. | 11-08-2012 |
20120318069 | ULTRASONIC FLOWMETER APPARATUS - An ultrasonic flowmeter apparatus, which can be mounted on a conduit flowing a fluid whose flow rate is to be measured, has two housing halves coupled swingably about an axis. Free ends of the housing halves include a clamp mechanism for closing and locking the halves in position. The halves have formed therein grooves | 12-20-2012 |
20130000416 | Waste Water Assessment - Waste water assessment apparatus, a method and a computer program are provided. The waste water assessment apparatus comprises: transceiver circuitry configured to transmit a microwave signal and to receive one or more reflections of the microwave signal; and processing circuitry configured to process the one or more reflections of the microwave signal to determine one or more characteristics of waste water flowing through a conduit. | 01-03-2013 |
20130031988 | Ultrasonic Consumption Meter With Locking Mechanism - An ultrasonic consumption meter includes an ultrasonic transducer for emitting and receiving ultrasonic waves, a flow channel, an electronic circuit for operating the meter, and a housing for the ultrasonic transducer and the electronic circuit. The housing is locked in position relative to the flow channel by a locking mechanism. | 02-07-2013 |
20130036832 | ULTRASONIC FLOW RATE MEASUREMENT UNIT - The ultrasonic flaw-rate measurement unit of the invention includes a flow measurement path inside which fluid to be measured flows through and to which a case accommodating a pair of ultrasonic transducers is installed, a pair of ultrasonic transducers disposed in the flow measurement path, a measuring circuit substrate incorporating a propagation time measuring part measuring a propagation time between the ultrasonic transducer transmitter and receiver and a flow-rate calculating part calculating a flow rate of the fluid to be measured based on the propagation time measured by the propagation time measuring part, and a damping material filling an interior space of the case and covering the pair of ultrasonic transducers. | 02-14-2013 |
20130042698 | Method and apparatus for determining flow characteristics of a medium in a pipeline - A method and an apparatus for determining at least one flow characteristic of an essentially laminarly flowing, gaseous or liquid medium in a pipeline. Distinguishing features include: that at least one modulation element introduced into, or placed in, the pipeline produces, at least for the case, in which the medium is flowing with a velocity different from zero, a change in density of the medium, at least at times, in the vicinity of the modulation element; that at least one mechanically oscillatable unit introduced into, or placed in, the pipeline and spaced from the modulation element is excited to resonant oscillations; that mechanical oscillations are received by the mechanically oscillatable unit and converted into an electrical, received signal, wherein the received signal is sensitive to the density change; and that the at least one flow characteristic of the medium is determined from the reaction of the received signal of the mechanically oscillatable unit to the density change. | 02-21-2013 |
20130098167 | FLOW CELL FOR A FLOW METER - A flow cell that includes a sensor body with internal cable channels for routing cables from the sensor ports to communicate with a flow meter is disclosed. | 04-25-2013 |
20130139610 | ULTRASONIC FLOW METER HOUSING FORMED BY A MONOLITHIC POLYMER STRUCTURE - The invention relates to an ultrasonic flow meter housing and to an ultrasonic flow meter comprising a housing. The housing is a monolithic polymer structure being cast in one piece. The monolithic structure includes a straight flow tube and a cavity separated from the flow tube, where a shared wall part forms part of the wall of the flow tube and of an inside surface of the cavity. The cavity is arranged for housing at least one ultrasonic transducer at the shared wall part, and a measurement circuit operationally connected to the at least one ultrasonic transducer. In an embodiment, the cavity only has a single opening which can be sealed off by a cover. | 06-06-2013 |
20130167653 | METHOD AND DEVICE FOR MONITORING AND OPTIMIZING INJECTION MOLDING PROCESSES - The invention relates to a method and a device for monitoring and/or optimizing flow processes, in particular injection molding processes. Vibrations caused by a flow of a material are detected and analyzed, wherein a vibration spectrum is detected at different times or in a (virtually) continuous manner and subjected to a multidimensional analysis. | 07-04-2013 |
20130167654 | REPLACEABLE ULTRASONIC TRANSDUCER FOR AN ULTRASONIC FLOW MEASURING DEVICE - An ultrasonic transducer for an ultrasonic flow measuring device, comprising a first housing part and a second housing part. The second housing part is axially guided in the first housing part and is so biased relative to the first housing part that, in a first state of the ultrasonic transducer, a first axial stop of the second housing part rests on a first axial stop of the first housing part, wherein, by applying, counter to the bias, a predetermined force on a second axial stop of the second housing part, the second housing part is axially shiftable, so that, in a second state of the ultrasonic transducer, the first axial stop of the second housing part is moved out of the first state. | 07-04-2013 |
20130180340 | Meter Having Banded Shroud - A flow meter is disclosed having a meter body that is enveloped by a shroud having a compliant band disposed at least partially about the meter body. The shroud protects transducers and transducer cables. The shroud forms a chamber between the shroud and meter body, and includes a releasable portion to allow access into the chamber. | 07-18-2013 |
20130180341 | ULTRASONIC FLOWMETER APPARATUS - A conduit P is clamped within a clamping hole | 07-18-2013 |
20130192386 | ULTRASONIC TRANSDUCER FOR A FLOW MEASURING DEVICE - An ultrasonic transducer for an ultrasonic flow measuring device, comprising a first housing part having an ultrasonic window and adjoining, rotationally symmetric walls, wherein there adjoins on the walls of the first housing part, coaxially with the walls of the first housing part, a first ring as resonator, which forms an end of the first housing part. | 08-01-2013 |
20130199305 | Single Wrapped Sensor Flow Meter - A signal processor receives a signal containing information about a sensor that is spirally wrapped at a known pitch or separation down a pipe having a flow; and determines a flow velocity based at least partly on the information contained in the signal received by applying an autocorrelation function that depends on a relationship between the time between a repeating pattern and the known pitch or separation of the spirally wrapped sensor. The signal processor provides a corresponding signal containing information about the flow velocity. The sensor includes a strain sensor, including a piezo-electric polymer strain sensor fabricated from PVDF, and/or two or more equally spaced spirally wound sensors. The determining includes correlating output signals of two or more equally spaced spirally wound sensors to determine a time delay, and determining the flow velocity based on the time delay and the known pitch or separation. | 08-08-2013 |
20130283927 | ULTRASONIC FLOW MEASUREMENT SYSTEM - An ultrasonic flow measurement system having a first ultrasonic sensor with a first ultrasonic buffer and a second ultrasonic sensor with a second ultrasonic buffer is disclosed. The first and second ultrasonic buffers have different cross sections in order to reduce distortion of the ultrasonic signals. | 10-31-2013 |
20130283928 | VIBRATION DAMPER FOR SENSOR HOUSING - A sensor probe comprises a tube, a sensor element and an absorber mass. The tube is for placement in a process fluid flow within a fluid conduit and comprises a first end for coupling to the fluid conduit and a second end for insertion into the process fluid flow. The sensor element is in communication with the tube. The absorber mass is coupled to the tube and is configured to dampen vibration of the tube when inserted in the process fluid flow. | 10-31-2013 |
20130291649 | SYSTEM AND METHOD FOR METER SUBSTITUTION FOR CO-LOCATED FLOWMETERS - A system and method for ultrasonic flow metering. In one embodiment, an ultrasonic flow metering system includes a plurality of ultrasonic flowmeters. Each of the ultrasonic flowmeters includes a flow processor. The flow processor is configured to maintain a plurality of velocity bins, each of the bins corresponding to a flow velocity range for the flowmeters. The flow processor is also configured to maintain, within each of the bins, a value indicative of past average velocity of fluid flow through a given one of the flowmeters associated with a given one of the bins. The flow processor is further configured to determine, responsive to one of the flowmeters having failed, an estimated average fluid flow velocity through the system based on the values maintained within the bins. | 11-07-2013 |
20130305839 | Device for the contactless flow measurement of fluids in flexible tubes - The invention relates to a device for the contactless flow measurement of fluids in flexible tubes. | 11-21-2013 |
20130327155 | Ultrasonic Flow Meter - An ultrasonic flow meter is disclosed comprising at least one ultrasonic transducer, wherein the transducer comprises a piezoelectric disc, a nonconductive polymeric material and an electrically conductive layer between the piezoelectric disk and the nonconducting polymeric material. | 12-12-2013 |
20140076062 | MEASUREMENT DEVICE BASED ON ACOUSTIC FLOW MEASUREMENT METHODS IN A PUMP SYSTEM AND METHOD FOR PRODUCING A MEASUREMENT DEVICE - A measurement device determines a volume flow based on acoustic flow measurement methods in a pump system and a method produces the measurement device. The measurement device includes a measurement path with two coupling wedges with two sound transducers disposed on the coupling wedges. The pump system and the coupling wedges are made of metal or a metal alloy. | 03-20-2014 |
20140083201 | Volumetric Measurement Device, System and Method - An acoustic volume sensing device is disclosed. The device includes a housing comprising a reference volume chamber and a variable volume chamber, the reference volume chamber and the variable volume chamber connected by a resonant port, a first MEMS microphone located in acoustic relation to the variable volume chamber, a second MEMS microphone located in acoustic relation to the reference volume chamber, a MEMS speaker located in acoustic relation to the reference volume chamber, and a circuit board in electric connection with the first and second MEMS microphones and the MEMS speaker. | 03-27-2014 |
20140109686 | ULTRASONIC FLOW METERING SYSTEM WITH AN UPSTREAM PRESSURE TRANSDUCER - Apparatus and method for monitoring operation of a flow metering system. In one embodiment, a flow metering system includes a flow meter, a first and second pressure sensors, a flow conditioner, and a condition monitor. The flow meter is configured to measure the volume of fluid flowing through the flow meter. The first pressure sensor is disposed proximate the flow meter to measure pressure of the fluid proximate the flow meter. The flow conditioner is disposed upstream of the flow meter. The second pressure sensor is disposed upstream of the flow conditioner to measure pressure of the fluid upstream of the flow conditioner. The condition monitor is coupled to the flow meter and the pressure sensors, and is configured to identify a potential discrepancy in operation of the flow metering system based on a difference between pressure measurements of the first and second pressure sensors. | 04-24-2014 |
20140165739 | Smooth Bore, Chordal Transit-Time Ultrasonic Meter and Method - A flow element for an ultrasonic flowmeter having a plurality of transducers for analyzing fluid flow in a pipe. The flow element includes a housing having a bore with an internal diameter and a surface through which fluid flows and a plurality of cavities each of which has an opening in the surface. Each of the cavities has one of the plurality of transducers disposed in it. The flow element includes a liner that covers the openings of the cavities which prevents fluid flowing through the bore from entering the cavities. | 06-19-2014 |
20140208866 | ULTRASONIC TRANSDUCER - An ultrasonic transducer has a transducer housing having an ultrasound window, a housing tube and a housing flange, a transducer holder for holding the transducer housing, a transducer element with an ultrasonic flow rate measuring transducer that is positioned at an end of the housing tube of the transducer, and an opposing flange clamping the housing flange of the transducer housing to a holder flange of the transducer holder together with retraining screws and lock nuts. A side of the housing flange of the transducer housing facing the opposing flange has an outer contour which enables bracing of the opposing flange against the housing flange without tilting or bending of the housing flange. | 07-31-2014 |
20140260664 | INLINE ULTRASONIC TRANSDUCER ASSEMBLY DEVICE AND METHODS - An inline ultrasonic transducer assembly is disclosed. The transducer assembly can include a body having a cylindrical flow passage and a transducer mounting space having a track on along which at least one transducer chassis can be slidingly engaged. The transducer chassis can include at least one piezo member oriented at an angle with the axial centerline of the flow passage. | 09-18-2014 |
20140331785 | FLUID DENSITY STRATIFICATION LOCATION SYSTEM, DEVICE AND METHOD - A fluid flow system, device, and method for locating a fluid layer in a fluid flow using an acoustic waveguide. The acoustic waveguide comprises a waveguide base segment, and a waveguide reflector segment. The waveguide reflector segment comprises a plurality of disc shaped waveguide reflectors along its length for locating a fluid layer. | 11-13-2014 |
20140338465 | FLOW METER WITH ULTRASOUND TRANSDUCER DIRECTLY CONNECTED TO AND FIXED TO MEASUREMENT CIRCUIT BOARD - An ultrasound flow meter unit arranged to measure a fluid flow rate is provided, where the unit comprises a circuit board | 11-20-2014 |
20140338466 | FLOW METER ASSEMBLY, GATE ASSEMBLIES AND METHODS OF FLOW MEASUREMENT - The present invention provides an acoustic flow meter assembly ( | 11-20-2014 |
20150033873 | Ultrasonic Consumption Meter With Locking Mechanism - An ultrasonic consumption meter includes two ultrasonic transducers for emitting and receiving ultrasonic waves, a flow channel, an electronic circuit for operating the meter, and a housing for the ultrasonic transducers and the electronic circuit. The housing is locked in position relative to the flow channel by a locking mechanism, and the flow channel has two holes for allowing the housing to get into contact with a media flowing in the flow channel. | 02-05-2015 |
20150047438 | ACOUSTIC PROBING TECHNIQUE FOR THE DETERMINATION OF MULTIPLE LIQUID/FROTH INTERFACES IN SEPARATION AND STORAGE VESSELS BASED ON AN OBLIQUE TOMOGRAPHIC ANALYSIS APPROACH - Apparatus is provided featuring a signal processor configured to receive from an array of ultrasonic transponders around a tank, container or flow pipe signaling containing information about acoustic waves of energy penetrating a fluid in the tank, container or flow pipe; and determine using tomography a three-dimensional image of layers of the fluid in the tank, container or flow pipe based at least partly on the signalling received and. The signal processor provides corresponding signal containing information about the three-dimensional image of the layers of the fluid in the tank, container or flow pipe. The array is an obliquely oriented array of ultrasonic transponders arranged on an oblique plane to the axis of the tank or column; or the array is placed normal to the flow around the exterior of the flow pipe. | 02-19-2015 |
20150082910 | APPARATUS AND METHOD FOR DETERMINING A NON-CONDENSABLE GAS PARAMETER - System and methods for determining a non-condensable gas parameter relating to the amount of non-condensable gas within a variable flow rate fluid flow containing both non-condensable gas and condensate are disclosed. An apparatus may include a measurement tube for receiving the fluid flow and arranged such that the fluid flow through the measurement tube comprises alternating sections of non-condensable gas and condensate; a flow sensor for generating a flow rate signal relating to the flow rate of the fluid flow in the measurement tube; a phase sensor for monitoring over time the alternating sections of non-condensable gas and condensate flowing through the measurement tube and arranged generates a phase signal characteristic of the said sections monitored; and a non-condensable gas determining unit configured to determine a non-condensable gas parameter relating to the amount of non-condensable gas in the fluid flow based on the flow rate signal and phase signal. | 03-26-2015 |
20150082911 | FLOW METER ASSEMBLY, GATE ASSEMBLIES AND METHODS OF FLOW MEASUREMENT - The present invention provides an acoustic flow meter assembly ( | 03-26-2015 |
20150090049 | FLOW IMAGING AND MONITORING FOR SYNCHRONIZED MANAGEMENT OF WIDE AREA DRAINAGE - A flow imaging and monitoring system for synchronized management of wide area drainage that includes an interposer for supporting monitoring and management equipment in a manhole, a module for illuminating water flowing in pipes at the base of the manhole, a module for monitoring responses to reflected light, a sealed and rechargeable battery pack, and a data analysis and management system to interpret data streams in real time. The interposer can be adjusted to fit the diameter of the manhole and can be adjusted to be placed under the manhole cover. The module for illuminating the flowing water can be adjusted to generate various frequencies. The support structures for the modules can be adjusted for varying pitch, roll and yaw with respect to the manhole. The data analysis and management system is supported by cloud computing. | 04-02-2015 |
20150135849 | System for Production Boosting and Measuring Flow Rate in a Pipeline - A system for measuring flow rate in a pipeline by use of a surface jet pump that receives input from both a high pressure pipeline and a low pressure pipeline. Rather than installing flow meters at any or all of the inputs/output from the SJP which is an expensive undertaking, flow rate is predicted by utilising existing pressure sensors located on the high pressure pipeline, low pressure pipeline and discharge pipeline respectively. A control processor predicts flow rate based on correlations between flow rate and pressure for a given SJP geometry and, for example, utilises momentum, conservation of mass and continuity equations, balanced against the pressure forces and velocity in the SJP. | 05-21-2015 |
20150293137 | Method and Device for Measuring and Controlling the Dosage of Small Quantities of Fluid by Means of a Resonating Needle, and Resonating Needle Suitable for this Purpose - A resonating needle which is adapted to be used in a device for measuring and controlling the dosage of a small quantity of fluid, includes: a needle ( | 10-15-2015 |
20150300860 | IMPROVED CASE FOR A VIBRATING METER | 10-22-2015 |
20150308866 | VIBRATION DAMPER FOR SENSOR HOUSING - A sensor probe comprises a tube, a sensor element and an absorber mass. The tube is for placement in a process fluid flow within a fluid conduit and comprises a first end for coupling to the fluid conduit and a second end for insertion into the process fluid flow. The sensor element is in communication with the tube. The absorber mass is coupled to the tube and is configured to dampen vibration of the tube when inserted in the process fluid flow. | 10-29-2015 |
20150338254 | Velocity Based Method for Determining Air-Fuel Ratio of a Fluid Flow - A method for determining one or more fluid flow parameters for a fluid flowing within a pipe is provided. The fluid is a mixture of solid particles and gas. The method includes the steps of: a) providing a meter operable to determine the velocity of the fluid flow through the pipe, which meter is substantially insensitive to the particulate/gas mass ratio of the fluid flow; b) determining the velocity of the fluid flow within the pipe using the meter; and c) determining a particulate/gas mass ratio using a density value for the gas within the flow and the determined fluid flow velocity. | 11-26-2015 |
20150338255 | FLOW METER DEVICE - A flow meter device of a fluid includes a time difference measuring means which measures time for a received wave to reach a zero cross point after the received wave exceeds a reference voltage, after transmission of a signal, and a reference voltage setting means which changes the reference voltage from a minimum value to a maximum value, recognizes peak voltages of waves of the received wave based on a plurality of inflection points at which a time difference measured by the time difference measuring means when the reference voltage is changed from the minimum voltage to the maximum voltage, is significantly changed, and automatically sets the reference voltage to a point between peak voltages of particular two waves based on a ratio between the peak voltages, and the reference voltage is changed from a voltage which is close to the peak voltages of the two waves and the peak voltages are newly recognized, when the reference voltage is newly set. | 11-26-2015 |
20150355003 | ACCELEROMETER-BASED SYSTEM FOR MONITORING FLOW - Some system embodiments may include a flow monitor and a communication hub. The flow monitor may be configured to be mounted on a feed line. The flow monitor may include an accelerometer configured to detect vibration of the feed line. The communication hub may be configured to wirelessly communicate with the flow monitor, to receive accelerometer data from the flow monitor, and use the accelerometer data to communicate flow status information through a network to a user. | 12-10-2015 |
20160003654 | ULTRASONIC SENSOR FOR HIGH TEMPERATURE AND MANUFACTURING METHOD THEREOF - Provided is an ultrasonic sensor which includes a piezoelectric vibrator made of a lithium niobate (LN) single crystal and may be used in a high temperature region by generating a high ultrasonic wave output, and prevents cracks from being generated in the crystal. A piezoelectric vibrator | 01-07-2016 |
20160003656 | ACOUSTIC MATERIAL FLOW SENSOR - A material flow sensor for a harvesting machine comprising an acoustic chamber comprising an impact plate and a housing, microphone, a pneumatic impulse line connecting the housing and the microphone, and an electronics module, wherein the housing is shaped so as to direct sound waves created by crop matter striking the impact plate into the pneumatic impulse line, wherein the sound waves move through the pneumatic impulse line into the microphone, which detects the sound waves and converts them into an electrical signal that is a representation of the sound power derived from the sound waves, which in turn is a representation of the mass of the crop matter striking the material flow sensor. | 01-07-2016 |
20160033400 | DETECTION OF PARTICLE CHARACTERISTICS - A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described. | 02-04-2016 |
20160093280 | Ultrasonic Transducer Mounting Assembly - Disclosed is an ultrasonic transducer mounting assembly comprising an ultrasonic transducer element, a transducer housing inside which the ultrasonic transducer element is arranged, and an accommodation unit inside which the transducer housing is clamped in a clamping section. The disclosed assembly is characterized in that the clamping section comprises at least one bearing that has at least one rolling element, in particular at least one ball bearing that has at least one ball, for acoustically decoupling the transducer housing from the accommodation unit. | 03-31-2016 |
20160109274 | GAS METER AND PARTICLE TRAP - Particle traps and meters fitted with particle traps are described for removing particles from a gas flowing through a gas meter, for example, removing particles from a gas flowing through an ultrasonic gas meter serving a domestic property. In one example, the particle trap has a body which defines a space defined by first and second portions of the body and housing a filter, an inlet through which gas can enter the space, and an outlet through which the gas can exit the space. The inlet and outlet are defined in the first portion and second portion is spaced away from the outlet. | 04-21-2016 |
20160116318 | Coupling Element, Ultrasonic Transducer and Ultrasonic Flow Meter - A coupling element for an ultrasonic transducer, which comprises a first recess provided for the arrangement of a piezoelectric element and comprising a terminal base surface in which an ultrasound signal generated by the piezoelectric element can be fed into the coupling element. The coupling element comprising inside the first recess one or a plurality of stops, each of which comprises at least one stop surface which extends along a plane, the plane extending parallel to the base surface of the first recess, and there being defined between this plane and the base surface a space for accommodating material for an acoustic adaptation layer. The invention further concerns an ultrasonic transducer and an ultrasonic flow meter. | 04-28-2016 |
20160143211 | WIRELESS FLOW MONITORING SYSTEM FOR AN AIR SEEDER - An agricultural product flow sensor and a flow sensor system for delivery tubes in an air seeder is provided. The flow sensor can include a particulate material sensor for sensing agricultural product passing through a delivery tub, a radio node for transmitting and receiving wireless signals and a wireless power source. The sensor system can use the flow sensors by attaching the flow sensors inline with delivery tubes and near a working tool. The flow sensors can monitor the flow of agricultural product through the delivery tube and transmit flow information to a person operating the air seeder. | 05-26-2016 |
20160161309 | FLOW RATE MEASURING DEVICE AND METHOD CAPABLE OF CORRECTING GRADIENT - The following disclosure relates to a flow rate measuring device and method capable of correcting a gradient. More particularly, the following disclosure relates to a flow rate measuring device and method capable of correcting a gradient that may measure a flow rate having a minimized measurement error by including a sensor unit provided on a bottom surface of an inner portion of a fuel tank in order to accurately measure a flow rate value remaining in the fuel tank to obtain distance information between the bottom surface of the fuel tank and an oil surface and gradient information of the fuel tank itself. | 06-09-2016 |
20190145807 | SYSTEM AND METHOD OF METERING WITH ARRAY OF TRANSDUCERS | 05-16-2019 |