Class / Patent application number | Description | Number of patent applications / Date published |
073861250 | Reflection or scattering of acoustic waves | 28 |
20080289433 | Acoustic Doppler Dual Current Profiler System and Method - An AD2CP includes at least one transducer assembly emitting sets of slanted directional acoustic beams and receiving the echoes; and electronics that processes the echoes into depth cells and computes velocity in each depth cell. The AD2CP is configured so that each beam set has a profiling catenation, at least two of which are different, and the AD2CP is configured so that the emitting, receiving and processing operate contemporaneously. | 11-27-2008 |
20080295609 | WAVEGUIDE DOPPLER FLOWMETER - Systems and methods are described for measuring flow properties of a high gas-cut multiphase mixture flowing in a conduit, such as a wet-gas produced from a hydrocarbon well. In aspects of the present invention, one or more receivers are used to receive Doppler shifted signals resulting from an interaction between a propagating dominant microwave mode developed in the conduit and the high gas-cut multiphase mixture flowing in the conduit. Analysis of the Doppler shift in the received signals may provide for determining the velocity of the gas and/or the liquid phase of the high gas-cut multiphase mixture. In other aspects, analysis of the phase difference of Doppler signals received at the plurality of receivers provides for a determination of the content of the wet-gas, such as the water holdup. | 12-04-2008 |
20090007694 | Ultrasonic Transducer System - System comprising at least one ultrasonic transducer ( | 01-08-2009 |
20090025487 | Apparatus and method for attenuating acoustic waves in propagating within a pipe wall - A method and apparatus for damping an ultrasonic signal propagating in the wall of a pipe, the apparatus including at least one damping structure for securing at least one sensor to the wall of the pipe, wherein the at least one sensor includes a transmitter component and a receiver component for transmitting and receiving an ultrasonic signal, wherein the at least one damping structure is associated with the outer wall of the pipe for damping the ultrasonic signal propagating within the wall of the pipe and a processor that defines a convective ridge in the k-ω plane in response to the ultrasonic signals, and determines the slope of at least a portion of the convective ridge to determine the flow velocity of the fluid. | 01-29-2009 |
20090095088 | Device for Determining and/or Monitoring a Volume Flow and/or a Mass Flow - An apparatus for ascertaining and/or monitoring volume- and/or mass-flow of a measured medium flowing in a flow direction through a measuring tube of predetermined inner diameter. The apparatus includes a plurality of ultrasonic sensors, which transmit and/or receive ultrasonic measuring signals along different, defined measuring paths, and a control/evaluation unit, which ascertains volume- and/or mass-flow of the measured medium in a pipeline/in the measuring tube on the basis of the ultrasonic measuring signals according to a sound entrainment method or the echo principle. At least two ultrasonic sensors, which transmit and/or receive the ultrasonic measuring signals on different measuring paths, are positioned in an opening located in the wall of the measuring tube. | 04-16-2009 |
20090107252 | Flow measurement device - The present invention discloses a flow measurement device that includes: a wave guide tube type resonant cavity; a penetrating space that penetrates the resonant cavity; a duct support part that is made of a dielectric substance and is in the resonant cavity and surrounds an outside of the penetrating space; a transmitting antenna that transmits a microwave in a direction along a longitudinal axial direction of the resonant cavity to provide a standing wave or a traveling wave of the microwave, with the microwave transmitted in a space that is outside of duct support part and inside of the resonant cavity; and a receiving antenna that receives the standing wave or the traveling wave. | 04-30-2009 |
20090255345 | CLAMP-ON APPARATUS FOR MEASURING A FLUID FLOW THAT INCLUDES A PROTECTIVE SENSOR HOUSING - An apparatus for measuring one or more characteristics of a fluid flowing within a pipe is provided. The apparatus includes a housing, sealant, and an array of at least two ultrasonic sensors. The housing is operable to be mounted on the exterior surface of the pipe. The housing has at least one pocket extending between a pipe-side surface and an outer surface. The pipe-side surface mates with the exterior surface of the pipe. The sealant is disposed between the pipe exterior surface and the housing pipe-side surface. The sealant forms a seal around the pocket when the housing is mounted on the exterior surface of the pipe. The array of ultrasonic sensor units are disposed within the at least one pocket. Each sensor unit includes a transmitter and a receiver. The transmitters are operable to transmit ultrasonic signals through the fluid flow within the pipe. The receivers are operable to receive signals from the transmitters. | 10-15-2009 |
20100154561 | Integrated Multi-Beam Acoustic Doppler Discharge Measurement System - A system and method for measuring the flow of water in cross-section of a body of water is presented. The system and method comprises a housing having a first transducer and a plurality of second transducers, wherein the first transducer produces an acoustic signal for determining the depth of the body of water, and the second transducers each produce an acoustic signal for determining the velocity of a volume of water by measuring the Doppler frequency shift in the returned echo. | 06-24-2010 |
20100154562 | ULTRASONIC METER - An ultrasonic meter may include, but is not limited to, an emitter that emits a series of ultrasonic burst signals towards a fluid containing bubbles and/or particles, the series of ultrasonic burst signals being reflected by the air bubbles and/or particles in the fluid to be a series of reflected signals, a receiver that receives the series of reflected signals, and a calculator that calculates a plurality of correlation coefficients by performing a correlation processing on a series of received signals outputted from the receiver, the calculator calculating a physical quantity of the fluid based on the plurality of correlation coefficients. | 06-24-2010 |
20100294045 | DEVICE FOR MEASURING THE FLOW RATE OF A FLUID FLOWING IN A PIPE | 11-25-2010 |
20100307263 | ULTRASONIC FLUID FLOW METER HOUSING WITH ACOUSTICALLY MATCHED BASE - A device for sensing fluid flow within a pipe, which pipe has a pipe wall, is provided. The device includes a sensor housing and a fluid flow meter. The sensor housing includes at least one pressure vessel enclosure and hardware for mounting the enclosure on an exterior surface of the pipe wall. The enclosure includes a base, side walls, and a cap. The enclosure base has a pipe-side surface that mates with the exterior surface of the pipe wall. The enclosure base and the pipe wall have substantially similar resonant frequencies and acoustic impedance. The sensor housing is adapted to be attached to the pipe wall such that the pipe-side surface of the base is mated with the exterior surface of the pipe wall. The fluid flow meter includes a plurality of ultrasonic sensors disposed within the at least one pressure vessel enclosure. Each sensor has a transmitter and a receiver. The transmitters are adapted to transmit signals at one or more frequencies, including frequencies that are substantially equal to the resonant frequencies of the base and pipe wall. | 12-09-2010 |
20110023623 | Device for Determining and/or Monitoring the Volume or Mass Flow Rate of a Medium in a Pipe Conduit - An apparatus for ascertaining, and/or monitoring, volume- or mass-flow of a medium flowing through a pipeline in the direction of the longitudinal axis of the pipeline. The apparatus includes: at least one ultrasonic sensor, which radiates/receives ultrasonic measuring signals at an angle of incidence/emergence into/out-of the pipeline; and a control/evaluation unit which provides, based on the ultrasonic measuring signals, information concerning volume- and/or mass-flow of the medium through the pipeline. The ultrasonic sensor includes at least one sound-producing element, a coupling shoe and a coupling adapter. The end region of the coupling adapter facing the coupling shoe has a securement mechanism for releasable securement of the coupling adapter to the coupling shoe. The end region of the coupling adapter facing the pipeline is embodied as a function of the pipeline in such a manner that it is form-fittingly securable to the pipeline. | 02-03-2011 |
20110079090 | MEASUREMENT INSERT AND FLOW METER - The present invention relates to a measurement insert ( | 04-07-2011 |
20120055264 | APPARATUS AND METHOD FOR NONINVASIVE PARTICLE DETECTION USING DOPPLER SPECTROSCOPY - An apparatus and method for noninvasively detecting the presence of solid particulate matter suspended in a fluid flowing through a pipe or an oil and gas wellbore are described. Fluid flowing through a conduit containing the particulate solids is exposed to a fixed frequency (>1 MHz) of ultrasonic vibrations from a transducer attached to the outside of the pipe. The returning Doppler frequency shifted signal derived from the scattering of sound from the moving solid particles is detected by an adjacent transducer. The transmitted signal and the Doppler signal are combined to provide sensitive particulate detection. The magnitude of the signal and the Doppler frequency shift are used to determine the particle size distribution and the velocity of the particles. Measurement of the phase shift between the applied frequency and the detected Doppler shifted may be used to determine the direction of motion of the particles. | 03-08-2012 |
20120272749 | Ultrasonic flow sensor for use in a fluid medium - An ultrasonic flow sensor for use in a fluid medium is described. The ultrasonic flow sensor includes at least two ultrasonic converters which are situated in a flow tube offset relative to one another, longitudinally with respect to a flow of the fluid medium. The ultrasonic flow sensor also includes a reflection surface, the ultrasonic converters being set up to exchange ultrasonic signals via simple reflection on the reflection surface. In addition, a deflection device is provided between the ultrasonic converters which is set up to essentially suppress parasitic ultrasonic signals, which are reflected from the reflection surface and which strike the deflection device, by deflection away from the ultrasonic converters. | 11-01-2012 |
20130061687 | PORTABLE ULTRASONIC FLOW MEASURING SYSTEM, MEASURING DEVICES AND MEASURING TUBE - The invention relates to a measuring device for a portable ultrasonic flow measuring system, which measuring device comprises two sensor heads. Each of the sensor heads comprises a sensor housing on which there is provided a sensing surface intended to be placed on or against a measuring tube. An ultrasonic transceiver is provided in each sensor housing for transmitting and receiving ultrasonic waves through the sensing surface. Additionally, the measuring device comprises a control and evaluation device for measuring a transit time difference for ascertaining the velocity of flow of a medium flowing through a measuring tube. Provision is made for each ultrasonic transceiver in the sensor head to be disposed therein parallel to the sensing surface in the sensor housing. The invention further relates to a measuring tube adapted for use with the measuring device of the invention and an information carrier that contains information concerning the measuring tube. | 03-14-2013 |
20130104667 | ULTRASONIC FLOW RATE MEASURING DEVICE AND ULTRASONIC FLOW RATE MEASURING METHOD | 05-02-2013 |
20130180342 | Ultrasonic flow sensor - An ultrasonic flow sensor comprises a flow cell body with an inlet on one side and an outlet on the other side through which the liquid or gaseous media flows; an inner flow conduit with rough surface which not only decreases the flow transition point from turbulence regime to laminar regime but also suppresses the parasitic multi-mode ultrasonic waves; one pair of electro-ultrasonic transducers for transmitting and receiving ultrasound signals; one pair of ultrasonic wave reflecting mirrors for guiding ultrasonic waves from one transducer to the other; and two reflecting mirror support fixtures which set the position and orientation of the ultrasonic wave reflecting mirrors in such a way that their disturbance to the flow inside the inner flow conduit is minimized while the ultrasonic signal strength is maintained. | 07-18-2013 |
20130333483 | METHODS AND APPARATUS FOR DETECTION OF FLUID INTERFACE FLUCTUATIONS - Dynamic characteristics of a liquid surface ( | 12-19-2013 |
20140130606 | SYSTEM AND METHOD FOR ULTRASONIC METERING USING AN ORIFICE METER FITTING - A method of retrofitting an orifice meter includes providing an orifice fitting body having a bore, an orifice plate, a plurality of tap holes, and a plurality of pressure sensors installed in the plurality of tap holes. The method further includes removing the orifice plate and the plurality of pressure sensors from the orifice fitting body and installing a plurality of transducers into the plurality of tap holes. At least one of the plurality of transducers is configured to generate a signal and at least one of the plurality of transducers is configured to receive the signal. Additionally, the method includes measuring a flow rate of a fluid flowing through the bore based on an output of each of the plurality of transducers. | 05-15-2014 |
20140208867 | OPEN CHANNEL FLOW METER - The open channel flow meter of the present invention uses a progressive spectral analyzer to increase the efficiency and accuracy thereof. This is accomplished by using a smaller degree fast Fourier transform covering small sections of the span of the sensor. Additional sections of the span are added to the analysis as required to cover the desired velocity range. This approach also allows one to bypass the processing of velocity spans outside the actual site conditions. This allows circuitry which costs less, uses less power, and achieves more precise readings in a shorter time period. | 07-31-2014 |
20140230567 | ACQUATIC VELOCITY SCANNING APPARATUS AND METHODS - Apparatus and methods for velocity scanning in, e.g., bodies of water. In one embodiment, a scanned one-dimensional transducer array Doppler sonar arrangement is used to remotely measure both vertical and horizontal profiles of a river or channel along-stream water velocities within a cross-section of the river/channel from a single side-mounted sonar. | 08-21-2014 |
20150114135 | METHOD FOR ULTRASONIC METERING USING AN ORIFICE METER FITTING - A method of retrofitting an orifice meter includes providing an orifice fitting body having a bore, an orifice plate, a plurality of tap holes, and a plurality of pressure sensors installed in the plurality of tap holes. The method further includes removing the orifice plate and the plurality of pressure sensors from the orifice fitting body and installing a plurality of transducers into the plurality of tap holes. At least one of the plurality of transducers is configured to generate a signal and at least one of the plurality of transducers is configured to receive the signal. Additionally, the method includes measuring a flow rate of a fluid flowing through the bore based on an output of each of the plurality of transducers. | 04-30-2015 |
20150330819 | MEASURING DEVICE, ESPECIALLY FLOW MEASURING DEVICE, AND METHOD FOR MANUFACTURING A MEASURING TUBE FOR A MEASURING DEVICE - A measuring device, especially a flow measuring device, including a measuring tube. The measuring tube includes at least one nozzle formed from the measuring tube by hot forming and serving for mounting a measuring transducer, especially an ultrasonic transducer, a measurement signal reflector, especially an ultrasonic reflector, and/or a measurement transmitter, and a method for manufacturing a measuring tube for a measuring device. | 11-19-2015 |
20160116316 | Ultrasonic Flow Meter - An ultrasonic flow meter comprising: a measurement pipe, which has a measurement pipe wall, at least in some parts a basic shape having a rotationally symmetric or polygonal cross-section, and a straight measurement pipe axis; a transmitter for transmitting an acoustic signal on a first signal path; and a receiver for receiving the acoustic signal on the first signal path; The measurement pipe has a plurality of reflection surfaces, by which the acoustic signal on the first signal path is reflected multiple times, and wherein the reflection surfaces are integrally formed from the measurement pipe wall, the reflection surfaces for reflecting the acoustic signal being designed in such a way that one or more of the reflection surfaces at least partially protrude into the basic shape of the measurement pipe and one or more of the reflection surfaces project outward at least from the basic shape of the measurement pipe. | 04-28-2016 |
20160116317 | ULTRASONIC FLOW TUBE, ULTRASONIC FLOW TUBE ASSEMBLY, ULTRASONIC FLOW SENSOR AND ULTRASONIC FLOW METER - The present disclosure discloses an ultrasonic flow tube. The ultrasonic flow tube includes a water inlet, a water outlet, a sound channel, a first mounting hole for fixing a first ultrasonic transducer, and a second mounting hole for fixing a second ultrasonic transducer. The water inlet defines a first fixing room. The water outlet defines a second fixing room. An entrance and an exit are defined at opposite ends of the sound channel. The entrance is equipped with a chamfer which can make the flow more smoothly and restrain turbulent flow. An installation groove for installing a seal ring is defined at an external sidewall of the ultrasonic flow tube. The seal ring is configured to seal the ultrasonic flow tube and a peripheral structure of the ultrasonic flow tube. The ultrasonic flow tube is made of plastic or ceramic. | 04-28-2016 |
20160146650 | ULTRASONIC FLOW METER DEVICE - An ultrasonic flow meter device comprises a fluid passage forming section including a measurement fluid passage, and an opening facing a bottom surface of the measurement fluid passage; a pair of ultrasonic transducers which transmit and receive an ultrasonic wave via the opening; a partition plate which partitions the measurement fluid passage; and an identification section provided on an end surface of the partition plate and used to identify an obverse surface and a reverse surface of the partition plate. | 05-26-2016 |
20180024264 | ULTRASOUND COLOR FLOW IMAGING FOR OIL FIELD APPLICATIONS | 01-25-2018 |