Transmitted Along Single Path Patents (Class 73/861.28)
  • Patent number: 10890470
    Abstract: An ultrasonic fluid meter for determining the flow rate and/or volume of a flowing medium includes a housing, an inlet, an outlet, a first ultrasound measurement path including at least one ultrasound transducer, and a second ultrasound measurement path including at least one ultrasound transducer. The ultrasound measurement paths extend at an angle to one another inside the housing and intersect. The first ultrasound measurement path and the second ultrasound measurement path extend at an angle to one another and intersect in a common region, as seen in a projection plane of a flow cross section. A method for determining the flow rate and/or volume of a flowing medium is also provided.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: January 12, 2021
    Assignee: Diehl Metering GmbH
    Inventors: Harald Kroemer, Wilhelm Oefelein, Malte Baer
  • Patent number: 10866127
    Abstract: An ultrasonic meter configured to operate in multiple classes is provided including a flowtube having an inlet at a first end and an outlet at a second end, opposite the first end; and first and second face to face transducers, the first transducer being positioned at the first end of the flowtube and the second transducer being positioned at the second end of the flowtube, wherein the first and second face to face transducers are positioned in line with flow through the ultrasonic meter. Related flowtubes are also provided herein.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 15, 2020
    Assignee: Sensus Spectrum, LLC
    Inventors: David Healy, Benjamin John Sokol, Hilary Jane Meanwell, Eric Frazee, Charlie Paterson
  • Patent number: 10852171
    Abstract: A method for determining measurement information includes conducting waves excited by first oscillation transducers to second oscillation transducers or back to the first transducers and recording to determine measurement data. The measurement information is determined using first and second data or first data determine an excitation parameter of a second wave. The first transducers excite the second wave with polarities reversed relative to a polarity for excitation of a first wave, or subgroups of the first transducers operate differently to excite the first and second waves, and/or first and second subgroups of the first or second transducers are used for recording. Only measurement signals of the first subgroup are used, or measurement signals of first and second subgroups are added to record the first data. Only measurement signals of the second subgroup are used, or measurement signals of subgroups are subtracted, or vice versa, to record second data.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: December 1, 2020
    Assignee: Diehl Metering GmbH
    Inventors: Peter Ploss, Michael Mayle
  • Patent number: 10852173
    Abstract: A flowmeter system that includes a flowmeter body defining a central bore. A plurality of flanges couple to the flowmeter body. The flowmeter body and the plurality of flanges form a one-piece structure without welded joints. A rotor within the central bore of the flowmeter body. A first vane within the central bore of the flowmeter body. The first vane couples to and supports the rotor within the flowmeter body. The flowmeter body, the flanges, the rotor, and the first vane comprise additive structures.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 1, 2020
    Assignee: Sensia LLC
    Inventors: Emanuel J. Gottlieb, Gopalakrishna S. Magadi
  • Patent number: 10852169
    Abstract: A method to control an ultrasonic flowmeter, the ultrasonic flowmeter including a pipe segment; a first pair of transducers defining a first ultrasonic path; and a second pair of transducers defining a second ultrasonic path is provided. The method includes: a) transmitting a first code along the first ultrasonic path; b) simultaneously transmitting a second code along the second ultrasonic path, wherein the first and second code are non-correlated; c) receiving a first ultrasonic signal by the first pair of transducers; d) receiving a second ultrasonic signal by the second pair of transducers; e) correlating the transmitted first code with the first ultrasonic signal; and f) correlating the transmitted second code with the second ultrasonic signal.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: December 1, 2020
    Assignee: Transus Instruments Pty Ltd
    Inventor: Saul Abraham Jacobson
  • Patent number: 10837160
    Abstract: According to at least one aspect, a fluid flow monitoring system includes an ultrasonic sensor for generating measurement signals associated with respective ultrasonic signals propagating through the fluid in the lumen, a shut-off valve for blocking fluid flow in the lumen, and a controller. The controller can be communicatively coupled to the ultrasonic sensor and to the shut-off valve. The controller can be configured to compute a plurality of fluid flow parameter estimates based on a plurality of measurement signals generated by the ultrasonic sensor over a time window while the shut-off valve is open. The controller can obtain an offset value associated with fluid flow parameter measurements during a zero flow state of the shut-off valve. The controller can then check for presence of a fluid leak event based on the fluid flow parameter estimates over the time window and the offset value.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: November 17, 2020
    Assignee: Reliance Worldwide Corporation
    Inventors: Michael Hammond, Francis M. Mess, Samuel Elia, Jorge C. Almirall, Brian Gestner, Jeffrey L. Leaders, Mathew Shane Smith
  • Patent number: 10823597
    Abstract: An ultrasonic flow meter device includes a piping arrangement including a tubular body extending along a longitudinal axis from a first end to a second end and including a measurement section disposed intermediate the ends, the tubular body defining a fluid passage extending along the axis through the tubular body from one end to the other; and at least two ultrasonic transducers and at least two reflective elements disposed on opposing sides of the tubular body and spaced apart along the axis. The piping arrangement includes an outer pipe body made from a metallic material and an inner sleeve made from a polymeric material, the inner sleeve being disposed within the outer pipe body. The inner sleeve is over molded within the outer pipe body. The inner sleeve defines the measurement section and the fluid passage of the piping arrangement.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: November 3, 2020
    Assignee: Arad Ltd.
    Inventors: Omri Bar-on, David Fogel
  • Patent number: 10801937
    Abstract: An apparatus for determining a fluid's kinematic viscosity from ultrasonic energy that has passed through the fluid of unknown viscosity along an acoustic path of known length. A computer of the apparatus determines a characteristic frequency of a received electrical signal associated with the ultrasonic energy and measures the fluid's velocity of sound. The kinematic viscosity of the fluid is determined by the computer on a continuous basis based on the characteristic frequency and the sound velocity. A method for determining a fluid's kinematic viscosity.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 13, 2020
    Assignee: Sensia LLC
    Inventors: Herbert A. Estrada, Donald R. Augenstein, Bobbie W. Griffith, Calvin R. Hastings
  • Patent number: 10739237
    Abstract: An apparatus for processing a biological sample for optical analysis having a cartridge with a sample supply container and a couvette, a cartridge/magazine holding the cartridge, and a cassette fan positioned over the cartridge. A filter cassette is mounted within the cassette fan, wherein the filter cassette has an inlet for receiving a sample from the sample supply container, an outlet for discharging the filter sample into the couvette, and valves therein to manipulate the sample for filtering. A cassette clamp is positioned over the filter cassette to secure the cassette and operate the filter cassette. A method for implementing this apparatus is also described herein. Additionally an apparatus is used for and a method measures waste fluid that passes over a filter element to control the amount of rinse fluid passing over the filter element.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: August 11, 2020
    Assignee: POCARED Diagnostics LTD.
    Inventor: Gal Ingber
  • Patent number: 10739174
    Abstract: A method is provided to measure a distribution of axial velocities and a flowrate in a pipe or a vessel. The method comprises selecting a single cross-section at a stable-flow segment in a pipe or a vessel, installing a plurality of acoustic wave sensors along a peripheral wall of the pipe or the vessel to form a plurality of effective sound wave paths; measuring sound wave travelling time on each sound wave path; substituting the measured sound wave travelling time into the model formula based on a sound path refraction principle for reconstruction calculation to obtain a distribution of axial velocity in the measured cross-section of the pipe or the vessel, u(x,y); and integrating the distribution of the axial velocity u(x,y) along the cross-section to obtain a flow rate. A system is also provided to measure an axial velocity distribution and a flow rate in a pipe or a vessel.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: August 11, 2020
    Inventor: Yanqin Li
  • Patent number: 10704940
    Abstract: Disclosed is a device for mounting an ultrasonic transducer, suitable for mounting the transducer such that it extends through a wall of a flow meter having a channel in which a fluid flows; the device includes a body in communication with an inner surface of the channel in accordance with a closed contour line that forms an interface between the inner surface of the channel and a surface of the device body, referred to as active surface, which follows the shape of the inner surface of the channel. The active surface extends continuously, and without openings, in the area delimited by the contour line. Also disclosed is a flow meter using a mounting device of this kind.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: July 7, 2020
    Assignee: INTEGRA METERING SAS
    Inventors: Alain Ramond, Mathieu Poque
  • Patent number: 10697875
    Abstract: A system and method for measuring one or more viscoelastic properties of a material under measurement is disclosed. The system includes an emitter-observer transducer pair separated by the material. A signal processing assembly is operable to (i) apply a plurality of excitation signals to the emitter transducer, wherein each of the excitation signals comprises a continuous-wave sinusoidal waveform, (ii) record a plurality of output signals at the observer transducer, wherein each of the output signals corresponds to one of the excitation signals, (iii) analyze the output signals to measure the sound speed of the material, and (iv) determine the viscoelastic properties of the material under measurement by optimizing the parameters of an infinite echo model. The system provides a non-destructive approach for in-situ measurement of viscoelastic material properties.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: June 30, 2020
    Assignee: THE CURATORS OF THE UNIVERSITY OF MlSSOURI
    Inventors: Jinglu Tan, Nilesh Salvi
  • Patent number: 10641629
    Abstract: To provide a clamp-on type ultrasonic flow sensor capable of highly accurately measuring a flow rate. First and second head cables CA1 and CA2 are connected between a head section 10 and an intermediate section 20. A relay cable CA3 is connected between the intermediate section 20 and a main body section 30. Ultrasonic elements are housed in casings 11c and 12c of the head section 10. A driving circuit for driving the ultrasonic elements and a signal processing section configured to perform signal processing on ultrasonic signals output from the ultrasonic elements are housed in a casing 20c of the intermediate section 20. In the intermediate section 20, a switching circuit configured to switch a connection state of the two ultrasonic elements of the head section 10 and the signal processing section is provided.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 5, 2020
    Assignee: Keyence Corporation
    Inventors: Shinichi Tsukigi, Jiro Baba
  • Patent number: 10634649
    Abstract: A clamping apparatus for coupling an ultrasonic transducer to a conduit is disclosed. The clamping apparatus comprises a base portion fastened to the conduit and including a bracket for receiving an adapter. The adapter is attached to a housing and allows the housing to be rotated when the adapter is positioned in an upper portion of the bracket, and prevents the housing from being rotated when the adapter is positioned in a lower portion of the bracket. The housing is configured to enclose the ultrasonic transducer except for a housing opening along the bottom of the housing. The ultrasonic transducer extends through the housing opening and is spring biased against the conduit.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: April 28, 2020
    Assignee: General Electric Company
    Inventor: Kai Fan
  • Patent number: 10615626
    Abstract: A wireless power transfer system may wirelessly transmit and receive power. A transmitting coil may wirelessly transmit the power. A receiving coil may be magnetically but wirelessly coupled to the transmitting coil and may wirelessly receive the power and generate an AC input voltage. A rectifier may rectify the AC input voltage. A capacitance may filter the rectified AC input voltage. An electronic switch may be connected in series between the rectified AC input voltage and an output. A load may be connected to the output. A controller may open and close the electronic switch so as to cause the output to be at a constant DC voltage, notwithstanding variations in the load.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: April 7, 2020
    Assignee: Linear Technology Holding LLC
    Inventors: Mark R. Vitunic, Eko T. Lisuwandi
  • Patent number: 10584991
    Abstract: An apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel including fluid supply passages at its ends, this measuring channel forming a waveguide made into a solid body, comprising at each end a transducer capable of emitting or receiving ultrasounds circulating in the axis of the channel, where each transducer includes a shell transmitting the ultrasounds, comprising a waveguide facing the measuring channel, and outside this waveguide shapes orientating the ultrasounds in directions different from that of the channel.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: March 10, 2020
    Assignees: EFS SA, ECOLE CENTRALE DE LYON, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARD LYON 1, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON
    Inventors: Julian Robin, Pascal Gucher, Alexandre Huchon, Sébastien Ollivier, Philippe Blanc-Benon
  • Patent number: 10571315
    Abstract: An embodiment provides a method for measuring velocity and depth of fluid flow in a channel, including: transmitting, using a transmitter, directed energy comprising a single energy beam slant-wise toward a surface of a fluid in a fluid channel producing a plurality of reflections, wherein the transmitting comprises modulating a frequency associated with the single energy beam; detecting, at a receiver, received signals from the plurality of reflections; and determining, based upon differences between parameters of the transmitted single energy beam and parameters of the received signals, the velocity of the fluid and the depth of the fluid. Other embodiments are described and claimed.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: February 25, 2020
    Assignee: HACH COMPANY
    Inventor: David L. Rick
  • Patent number: 10557733
    Abstract: A multi-channel ultrasonic flowmeter includes transducer assemblies (21, 22,23, 24) and a pipe housing (10). Four transducer assembly installation holes (9) arranged at two ends of the pipe housing (10) close to flanges (4). The transducer assemblies (21, 22, 23, 24) are provided in the installation holes (9). The transducer assemblies (21, 22, 23, 24) includes transducers (7) and stationary posts (1). An upper portion of the stationary post (1) has a first cylindrical body (109). A lower portion of the stationary post (1) has a flat key-shaped protrusion (105) extending in an axial direction. The flat key-shaped position-limiting protrusion (105) limits rotation of the stationary post (1) around an axial thereof, and ensures accurate positioning of the axis of the stationary post (1). The transducer (7) and the stationary post (1) are respectively sealed to prevent leakage of a fluid.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: February 11, 2020
    Assignee: QINGDAO HIWITS METER CO., LTD.
    Inventors: Xin Fang, Xinxing Li
  • Patent number: 10557732
    Abstract: A flowmeter body assembly includes a flowmeter body defining a central bore and a plurality of angled connectors extending from a sidewall of the flowmeter body. The flowmeter body and the plurality of angled connectors form a one-piece structure that is devoid of welded joints, and each of the plurality of angled connectors is configured to support a respective sensor to enable measurement of a flow rate of a fluid across at least one chordal plane of the flowmeter body.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: February 11, 2020
    Assignee: Cameron International Corporation
    Inventors: Emanuel John Gottlieb, Gopalakrishna Srinivasamurthy Magadi
  • Patent number: 10514286
    Abstract: A gas flowmeter includes: device body (1) which accommodates a fluid to be measured; inlet pipe (4) through which the fluid to be measured flows into device body (1); and outlet pipe (5) through which the fluid to be measured flows out from device body (1) through connecting pipe (7). The gas flow meter also includes: ultrasonic flow rate measuring unit (9) which has a first end side connected to outlet pipe (5) and performs flow rate measurement of the fluid to be measured which flows in ultrasonic flow rate measuring unit (9); and connecting pipe (7) which is disposed between ultrasonic flow rate measuring unit (9) and outlet pipe (5), and is connected to outlet pipe (5). The gas flow meter further includes support member (10) which supports a second end side of ultrasonic flow rate measuring unit (9).
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: December 24, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideaki Morihana, Masato Satou, Hidetomo Nagahara, Masanobu Teraji, Naoto Naganuma
  • Patent number: 10444051
    Abstract: An ultrasonic sensor assembly is provided having sensor body having opposing open ends for enabling fluid flow therethrough. The body defines an interior measurement section therein. The body defines a plurality of spiral flow paths disposed about a longitudinal axis of the measurement section. The sensor assembly includes a pair of ultrasonic transceivers mounted to the tubular body in spaced longitudinal relationship across the measurement section. An electronics housing mounted to the body in a separable manner, when mounted, the electronics housing is in operable communication with the pair of ultrasonic transceivers to measure fluid parameters within the measurement section.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: October 15, 2019
    Assignee: Georg Fischer Signet, LLC
    Inventors: Gert Burkhardt, Jorge Samayoa
  • Patent number: 10422675
    Abstract: A flow monitoring system for monitoring fluid flow. The flow monitoring system including a conduit, a first transducer, a second transducer, and a flow diverter. The conduit has an inner surface that defines a flow channel extending through the conduit. The conduit defines a bore extending from the inner surface to an outer surface. The first transducer is positioned within the bore of the conduit, such that at least a portion of the first transducer extends into the flow channel. The second transducer is positioned such that the second transducer can send and receive signals propagating through at least a portion of the flow channel to and from the first transducer. The flow diverter is positioned within the flow channel of the conduit adjacent to the first transducer and the second transducer.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: September 24, 2019
    Assignee: APS Technology, Inc.
    Inventor: Thomas M. Bryant
  • Patent number: 10416012
    Abstract: A method for estimating and correcting or at least reducing phase errors in received ultrasonic signals in an ultrasonic flow meter is disclosed, the method including the steps of: measuring one or more signals in the ultrasonic flow meter, which one or more signals depend on characteristics of one or more ultrasonic transducers in the ultrasonic flow meter, using the one or more measured signals for calculating an estimated phase error value, and using the estimated phase error value for correcting transmission times measured by the ultrasonic flow meter.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: September 17, 2019
    Assignee: Apator Miitors ApS
    Inventor: Jens Drachmann
  • Patent number: 10408649
    Abstract: The flow speed of a fluid (12) flowing in a conduit (14) is measured using at least one ultrasonic transducer (18a-b) that is attached to the conduit wall (22) from the outside The transducer (18a-b) has an oscillating body (34) that couples to a part region (32) of the conduit wall (22) that acts as a membrane of the ultrasonic transducer (18a-b) that can vibrate. A coupling piece (36) whose cross-section is smaller than the cross-section of the oscillating body (34) is arranged between the membrane (32) and the oscillating body (34).
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: September 10, 2019
    Assignee: SICK ENGINEERING GMBH
    Inventors: Volker Herrmann, Eric Starke, Christian Schulz
  • Patent number: 10378938
    Abstract: A transducer system with a transducer and circuitry for applying a pulse train to excite the transducer. The circuitry for applying a pulse train selects a first set having a first number of pulses at a first frequency and a second set of pulses having a second number of pulses at a second frequency differing from the first frequency. At least one pulse from the first set is located in the pulse train between one or more of the pulses at the second frequency.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 13, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Anand Dabak, Amardeep Sathyanarayana, Luis Fernando Reynoso, Venkataramanan Ramamurthy
  • Patent number: 10365138
    Abstract: An end treatment for use with an ultrasonic gas flow meter includes an attenuation section having a pipe extending in a longitudinal direction and containing a set of alternating, spaced, and vertically oriented first and second plates located between an inlet end and an outlet end of the pipe. Each plate includes a first end connected to an inside wall of the pipe and a second end extending past a longitudinal centerline of the pipe to define a gap between the end of the plate and a respective opposing inside wall of the pipe. As the gas traverses the plates by flowing through the gaps, the ultrasonic waves are prevented from reflecting back to the flow meter.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: July 30, 2019
    Assignee: Big Elk Energy Systems, LLC
    Inventor: Dennis McClintock
  • Patent number: 10359304
    Abstract: An ultrasonic meter for recording a through-flow rate of a fluid has a fluid inlet, a fluid outlet, and a flow channel connecting the inlet to the outlet. The flow channel has a measurement region which extends in a straight line in a flow direction. Between the measurement region and the fluid outlet, there is arranged a reflection element which is flowed around by the fluid and by which an ultrasonic signal is reflected into the measurement region. Between the measurement region and the reflection element, there is arranged a changeover region of the flow channel. In the changeover region a spacing between a central straight line of the measurement region and the side wall enlarges. The changeover region has, in the circumferential direction of the flow channel, several circumferential sections in which the enlargement of the spacing between the central straight line and the side wall takes place.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 23, 2019
    Assignee: Diehl Metering GmbH
    Inventor: Hans-Michael Sonnenberg
  • Patent number: 10352744
    Abstract: A flowmeter for detecting gas flow rates in a pipe includes a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses that extend through the container and a plurality of housings, each recess having a housing. The flowmeter includes a plurality of transducers, with one transducer of the plurality of transducers disposed in each housing in each recess, the transducers transmitting ultrasonic signals into and receiving ultrasonic signals from the channel. The flowmeter includes acoustic isolators which acoustically isolate the housings from the container. The flowmeter includes a controller in electrical communication with the plurality of transducers which determines the gas flow rate through the channel by measuring transit times of signals transmitted by and received by the transducers. A method.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: July 16, 2019
    Assignee: Cameron International Corporation
    Inventors: Emanuel J. Gottlieb, Donald R. Augenstein, William R. Freund, Jr., Richard A. Zuckerman, Herbert Estrada, Calvin R. Hastings
  • Patent number: 10337897
    Abstract: A method of manufacturing an ultrasound flow rate measurement apparatus is provided, wherein at least one pocket for an ultrasonic transducer is manufactured from the outside in a line wall of a line section in which a fluid flows in operation and an ultrasonic transducer is arranged in the pocket, wherein the ultrasonic transducer has an oscillating body that couples to a part region of the line wall and that acts as a membrane of the ultrasonic transducer capable of vibration. In this respect, a manufacturing step of the pocket has a drilling procedure and a coupling piece is manufactured with the pocket and is arranged between the membrane and the oscillating body after the insertion of the ultrasonic transducer and its cross-section is smaller than the cross-section of the oscillating body.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: July 2, 2019
    Assignee: SICK ENGINEERING GMBH
    Inventors: Christian Schulz, Jörg Schneider, Torsten Schmidt
  • Patent number: 10330509
    Abstract: The invention relates to a method and an arrangement for an ultrasound clamp-on flow measurement according to the transit-time method. The problem addressed by the invention is to provide a measurement arrangement for clamp-on flow measurement, which enables measurement using only two pairs of acoustic transducers in both reflection configuration and in X configuration, without requiring the acoustic transducer position to be changed when switching between configurations. For the method according to the invention, at least four acoustic transducers are arranged on a measurement pipe, which are controlled in such a way that the flow measurement is performed consecutively in an alternating manner in the X configuration and in the reflection configuration. For this purpose, two acoustic transducers are connected for each transmission-receiving pair for a flow measurement in X configuration, and/or two acoustic transducers are connected for each transmission-receiving pair for two reflection configurations.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: June 25, 2019
    Assignee: Flexim Flexible Industriemesstechnik GmbH
    Inventor: Bernhard Funck
  • Patent number: 10302474
    Abstract: An insertion ultrasonic sensor assembly is provided having an elongated sensor body. The body includes two projections projecting from the distal end having a pair of ultrasonic transceivers. Each transceiver of the pair mounted to a corresponding projection. The assembly is mounted so that the sensor body projects into the container, having the distal end exposed to the flowing fluid, in manner that the measurement axis of the sensor body is oriented at an oblique angle relative to the flow of the fluid within the container.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: May 28, 2019
    Assignee: Georg Fischer Signet LLC
    Inventor: Gert Burkhardt
  • Patent number: 10295387
    Abstract: A fluid-flow measuring ball valve includes a housing and a ball having an orifice. The ball is moved between an open position allowing fluid flow through the orifice and a closed position preventing fluid flow. A first ultrasonic transducer is positioned in the housing upstream of the ball. A second ultrasonic transducer is positioned in the housing downstream of the ball and both are aligned to send and receive pulses. First and second acoustic reflectors are aligned with the transducers to transmit and reflect ultrasonic signals in at least one direction through the ball orifice when the ball is in an open position. The controller determines the fluid velocity based on measured speed of sound and calculates the volume of fluid through the orifice based on the measured fluid velocity and cross-sectional area.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 21, 2019
    Inventor: Vittorio Bonomi
  • Patent number: 10281437
    Abstract: A sensor assembly is configured to mount transducers on a conduit, such as a pipe, for measuring properties of a fluid flowing in the conduit. The sensor assembly can include a sensor cradle capable of seating and maintaining a pair of transducers. The sensor assembly can include a mounting device arranged to couple the sensor cradle to the conduit such that the transducers maintained at the sensor cradle are oriented to allow transmission of ultrasonic waves traversing the conduit. The sensor assembly allows for mechanically stable coupling of the transducers to the conduit. The transducers can be fixed to the sensor cradle though an adhesive. In some implementations, the transducers can be oriented substantially orthogonal to each other.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: May 7, 2019
    Assignee: Reliance Worldwide Corporation
    Inventors: Jeffrey L. Leaders, Francis M. Mess, Clayton C. Pumphrey, Jorge C. Almirall
  • Patent number: 10260537
    Abstract: A pipe assembly for flow measurement characterized by a fluid flow pipe and two or more flow conditioners each having a stepped configuration and disposed in series within the fluid flow pipe in an orientation substantially perpendicular to an axis of the fluid flow pipe.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: April 16, 2019
    Assignee: Canada Pipeline Accessories, Co., Ltd.
    Inventor: Daniel A. Sawchuk
  • Patent number: 10209110
    Abstract: This application discloses a new ultrasonic measurement technique to measure the velocity and displacement of the objects. Minimizing the effect of amplitude modulation from ultrasonic phase and amplitude extraction system, is a novel approach to significantly improve the accuracy and precision of the measurements. The possibility of the measurements using a single ultrasonic transducer functioning as a transmitter and receiver in continuous measurement, may be a significant advantage of this measurement technique over conventional methods. The ability of doing measurement on the objects much smaller than the wave wavelength may be an advantage of this innovative measurement technique comparing with contemporary ultrasonic measurement systems that are limited by the wavelength of the sound. Applications for this novel measurement system are also disclosed in this application.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: February 19, 2019
    Inventor: Javad Rezanezhad Gatabi
  • Patent number: 10197423
    Abstract: An ultrasonic flow meter comprising two piezoelectric ultrasonic transducers each comprising a first and a second electrode; an ultrasonic flow meter housing, at least a part of which forms a support substrate for supporting the two piezoelectric ultrasonic transducers on an electrically conductive layer of the support substrate; an adhesive applied between the electrically conductive layer and the first electrode; wherein at least the first electrode of each piezoelectric ultrasonic transducer has a roughened surface, and wherein electrical connection between the electrically conductive layer and the first electrode is formed by said roughening.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: February 5, 2019
    Assignee: Apator Miitors ApS
    Inventor: Thue Bjerring Lindballe
  • Patent number: 10145714
    Abstract: A field device, especially an ultrasonic, flow measuring device, comprising: a transmitter for producing an alternating exciter signal; and at least one transducer, especially first and second ultrasonic transducers. The transmitter additionally has a generator for producing the alternating exciter signal and a transmitting stage, wherein the generator is connected via the transmitting stage with at least the first ultrasonic transducer. An output of the transmitting stage is connected with the transducer, especially the first ultrasonic transducer, via a first signal path, wherein the first signal path has a first resistance element, wherein a second signal path branches from the first signal path, wherein the second signal path has a second resistance element connected on one side to ground for lessening impedance related fluctuations of the exciter signal, wherein the second signal path branches from the first signal path between the output of the transmitting stage and the first resistance element.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: December 4, 2018
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Achim Wiest, Oliver Brumberg
  • Patent number: 10099185
    Abstract: Mass-transfer rate control arrangement and method in which a process precursor mixture is produced containing carrier gas and a process precursor gas. A quantity of the process precursor present in the process precursor mixture is acoustically sensed to produce a sensor output. A dilution gas is provided and the process precursor mixture and the dilution gas are separately conveyed to a dilution point, at which a diluted mixture of the dilution gas and the process precursor mixture is achieved. A relative flow rate of the carrier gas and the dilution gas is automatically controlled in response to the sensor output such that the diluted mixture at the dilution point has a prescribed mass transfer rate of the precursor gas.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 16, 2018
    Assignee: Veeco Instruments Inc.
    Inventors: Ray Logue, Don Sirota, Karthik Karkala, Eric Armour, Christopher A. Morath, Arindam Sinharoy
  • Patent number: 10082486
    Abstract: A method for recognizing the presence of liquid (30) in a gas flow flowing in a pipeline uses an ultrasound flowmeter (10). Measurement paths are provided in pairs which are displaced vertically by an equal predefined distance with respect to the center axis such that one lies in an upper region above the center axis and one lies beneath the center axis. A check is made in three stages to define various measurement values, turbulence values and speed of sound values. A liquid warning signal is output when an invalid measurement value is delivered in the first stage, or when the ratio of the turbulence values in the second stage differs from 1 by more than a predefined tolerance value, or when the ratio of the speeds of sound in the third stage differs from 1 by more than a predefined tolerance ratio.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: September 25, 2018
    Assignee: SICK Engineering GmbH
    Inventor: Andreas Ehrlich
  • Patent number: 10051787
    Abstract: A harvesting head yield monitor comprises two sensing elements (328, 330) respectively disposed in two adjacent row unit covers (114). A driver circuit (400) drives one of these sensing elements (328) to produce a high radio frequency signal. The other sensing element (330) receives the signal. A signal conditioning circuit (402) receives the signal from the other sensing element. A controller (404) coupled to the signal conditioning circuit converts the received signal into a signal that indicates the crop yield of the row unit that is disposed underneath the two adjacent row unit covers.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: August 21, 2018
    Assignee: Deere & Company
    Inventors: William D. Todd, Bhanu Kiran Palla
  • Patent number: 10031010
    Abstract: A method for operating an ultrasonic device comprising a first and second ultrasonic transducers, includes driving the first and second transducers at a driving frequency such that the first and second transducers generate a first and a second signals, respectively. The method also includes sensing the second signal at the first transducer to produce a first measurement signal and sensing the first signal at the second transducer to produce a second measurement signal. The method further includes identifying a first set of data-points in the first measurement signal and a second set of data-points in the second measurement signal. The method also includes generating a frequency data-series using the first set of data-points and a corresponding data-point in the second set of data-points. The method also includes performing statistical operations based on the frequency data-series and configuring an operating frequency for driving the first and second transducers using the operations.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: July 24, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Torben Amby Christensen, Robert Schaefer
  • Patent number: 9983036
    Abstract: A measurement control section of a flow meter device causes a measurement block dividing section to divide a sampling cycle Tc into three or more, for example, four measurement blocks Tb of an equal length and causes the flow measuring section to measure the flow of a fluid in each of the measurement blocks Tb. A flow calculating section of the flow measuring section calculates an average value of flow values obtained in all of the measurement blocks in each sampling cycle Tc, as a flow value in each sampling cycle Tc. This configuration allows a flow meter device which employs an inverse transit time difference method, such as an estimation gas meter, to more effectively lessen the influence of a pulsation and to perform flow measurement with higher accuracy.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 29, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Aoi Watanabe, Kouichi Takemura, Yasuo Koba, Masato Satou
  • Patent number: 9983033
    Abstract: Appurtenances added to a pipe mitigate the effects of upstream valves, sluice gates or pipe elbows to condition the pipe flow for accurate flow rate detection by a reverse propeller meter. Further appurtenances allow the reverse propeller meter to be used in extreme debris situations such as weeds, vines and moss present in many canal systems. The system provides an electronic signal that indicates flow rate and accumulated flow volume, or the signal can be transmit to a central headquarters for remote gate control or canal automation.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 29, 2018
    Assignee: RSA PROTECTIVE TECHNOLOGIES, LLC
    Inventors: Richard Steven Adler, John Replogle
  • Patent number: 9970808
    Abstract: A method for ascertaining a compensated flow and/or a compensated flow velocity, wherein the compensation of a flow related measurement error occurs in the context of a flow measurement with a two path measuring of an ultrasonic, flow measuring device, comprising: an arrangement of at least two ultrasonic transducers pairs on a tube, or pipe, wherein the ultrasonic transducers are in a 180°, two path, one traverse, or a 90°, two path, two traverse arrangement, by means of an evaluation unit of a flow measuring device and/or a computer, characterized by steps as follows: a) feeding information relative to the type of a flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; b) feeding information relative to distance (xa-xd) of the arrangement of the ultrasonic transducer pairs from the flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; c) compensating a measurement error by means of a correction factor kD as a function of information
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 15, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Frohlich, Oliver Berberig, Beat Kissling, Quirin Muller, Klaus Bussinger
  • Patent number: 9926952
    Abstract: A flow conditioner for displacing and mixing fluid flow to minimize the effects of thermal gradients on the accuracy of a transit time ultrasonic flowmeter having a first portion adapted to be disposed in the pipe and extending inward toward the center of the pipe in a downstream direction with respect to the fluid flow relative to the pipe's inner surface. The conditioner has a second portion adapted to be disposed in the pipe and in juxtaposition with the first portion. The second portion extending inward toward the center of the pipe in an upstream direction with respect to the fluid flow relative to the pipe's inner surface. An apparatus for determining fluid flow in a pipe having ultrasonic transducer sites. A method for determining fluid flow in a pipe. A method for affecting fluid flow in a pipe.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: March 27, 2018
    Inventors: Christopher B. Laird, Gregor Brown
  • Patent number: 9903882
    Abstract: A method for determining a flow speed of a liquid in a fluid conduit is provided. During a signal-generating phase, an impulse signal is applied to a first ultrasonic transducer. A response signal is then received at a second ultrasonic transducer. A measuring signal is later derived from the response signal, wherein the derivation comprises reversing a signal portion with respect to time. During a measurement phase, a liquid moves with respect to the fluid conduit. The measuring signal is then applied to one of the two transducers and a response signal of the measuring signal is measured at the other transducer. A flow speed is derived from the response signal of the measuring signal.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 27, 2018
    Assignee: GWF MessSysteme AG
    Inventors: Thomas Werner Hies, Trung Dung Luong, Claus-Dieter Ohl, Juergen Heinz-Friedrich Skripalle
  • Patent number: 9903745
    Abstract: An ultrasonic flow meter is disclosed, the ultrasonic flow meter including a flow tube with a flow channel for a fluid to be measured, and two ultrasound reflectors fixated inside the flow tube, a first ultrasound transducer, a second ultrasound transducer, and an electronic control arrangement for operating the ultrasonic flow meter. The ultrasound transducers and reflectors have relative positions and orientations forming an ultrasound path from the first ultrasound transducer to the at least two ultrasound reflectors, to the second ultrasound transducer, and vice versa. The ultrasonic flow meter measures absolute transit times of the ultrasound signal from the first ultrasound transducer to the second ultrasound transducer, and/or vice versa, and the ultrasound reflectors include at least 50% by weight of copper, and the ultrasound signal includes at least 8 pulses.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: February 27, 2018
    Assignee: APATOR MIITORS APS
    Inventors: Jens Drachmann, Pol Martinez Caldwell
  • Patent number: 9885593
    Abstract: A method for verifying the reliability of ascertained measurement data of an ultrasonic, flow measurement made according to the travel-time difference method, wherein an ultrasonic flow measuring device having at least two ultrasonic transducers is used to transmit and receive ultrasonic signals inclined in or counter to a flow direction of a measured medium. A first ultrasound disturbance signal is registered within a first time window before receiving a first ultrasound wanted signal, and a second ultrasound disturbance signal is registered within a second time window before receiving a second ultrasound wanted signal. A quality criterion is ascertained for evaluating the measurement uncertainty of a measured value proportional to the travel-time difference ascertained from the first and second ultrasound wanted signals, wherein the ascertaining of the quality criterion includes a difference forming between the first and second disturbance signals.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: February 6, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Frank Wandeler, Aurele Fleury
  • Patent number: 9863798
    Abstract: A system for metering flow of a fluid has a vibratable flowtube for receiving a multiphase fluid flow. A driver is configured to vibrate the flowtube. A pair of sensors is positioned to detect movement of the flowtube at different locations on the flowtube. Pressure and temperature sensors are positioned to measure a pressure of the fluid. One or more processors are configured to use a phase difference between the sensor signals to determine a fluid flow rate through the flowtube. The one or more processors are further configured to determine an amount of dissolved gas in the multiphase fluid using the pressure, the temperature, and the relative amounts the multiple liquids in the multiphase fluid.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: January 9, 2018
    Assignee: Schneider Electric Systems USA, Inc.
    Inventors: Manus P. Henry, Richard P. Casimiro, Michael S. Tombs, Alice Anne Probst
  • Patent number: 9851232
    Abstract: The invention relates to an ultrasonic flow meter comprising a flow tube for the fluid whose flow rate is to be determined. The flow meter comprises a transmitting element for emitting ultrasonic waves, which is provided on the outer jacket of the flow tube. A receiving element, which is provided on the outer jacket of the flow tube, is axially spaced from the transmitting element. An influencing element is provided between the transmitting element and the receiving element for influencing the velocity and/or the direction of a portion of the ultrasonic waves.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 26, 2017
    Assignee: BERKIN B.V.
    Inventors: Joost Conrad Lötters, Gert Jan Snijders, Arno Willem Frederik Volker