With Pressure And/or Temperature Compensation Patents (Class 73/708)
  • Patent number: 11561201
    Abstract: The invention comprises a device and method to estimate the elasticity of soft elastic solids from surface wave measurements. The method is non-destructive, reliable and repeatable. The final device is low-cost and portable. It is based in audio-frequency shear wave propagation in elastic soft solids. Within this frequency range, shear wavelength is centimeter sized. Thus, the experimental data is usually collected in the near-field of the source. Therefore, an inversion algorithm taking into account near-field effects was developed for use with the device. Example applications are shown in beef samples, tissue mimicking materials and in vivo skeletal muscle of healthy volunteers.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 24, 2023
    Assignee: UNIVERSIDAD DE LA REPUBLICA
    Inventors: Nicolás Benech, Gustavo Grinspan, Sofía Aguiar, Carlos Negreira
  • Patent number: 11473508
    Abstract: A probe includes a probe head, a probe tip extending from the probe head and having a sensor in fluidic communication with a first fluid stream, a pressure channel extending into the probe tip through the sensor face with a pressure sensor that senses pressure in the pressure channel, and a temperature channel extending into the probe tip through the sensor face. The temperature channel including a temperature orifice disposed on the sensor face and at least one exit port distal from the sensor face. The temperature channel is parallel to and fluidly separate from the pressure channel and includes a temperature sensor that senses temperature in the temperature channel. The temperature channel directs fluid flow from the temperature orifice to the at least one exit port, thereby discharging fluid flow into a second fluid stream.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 18, 2022
    Assignee: ROSEMOUNT AEROSPACE INC.
    Inventors: Lisa Graham, Robert Edward Sable, Richard William Phillips
  • Patent number: 11460869
    Abstract: A fluid control system (1) comprises: a first valve (21) provided downstream of a flow rate controller (10), a flow rate measuring device (30) provided downstream of the first valve (21) and having a second valve (22), an open/close detector (26) provided to the second valve (22), and a controller (25) for controlling an open/close operation of the first valve (21) and the second valve (22), and the controller (25) controls the open/close operation of the first valve (21) in response to a signal output from the open/close detector (26).
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: October 4, 2022
    Assignee: FUJIKIN INCORPORATED
    Inventors: Satoru Yamashita, Yohei Sawada, Masaaki Nagase, Kouji Nishino, Nobukazu Ikeda
  • Patent number: 11460481
    Abstract: Methods and apparatuses for indicating the presence of a threshold directional differential pressure between separated adjacent spaces. A conduit contains at least one movable element that indicates whether the pressure difference between the two spaces is at least as high as a threshold pressure difference. The apparatus is adjustable to have different threshold set points by adjusting the pivot arm inclination relative to a horizontal plane.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: October 4, 2022
    Assignee: AirFlow Directions, Inc.
    Inventor: Brian M. Wiseman
  • Patent number: 11433654
    Abstract: This disclosure provides systems and methods for a fluid-filled pressure sensor assembly for higher pressure environments. A fluid-filled pressure sensor assembly may be adapted for coupling to a structure at a mating surface and may include a header; a pressure sensor coupled to the header; a diaphragm coupled to the header and configured for positioning forward of the mating surface so that a fluid region is disposed between the diaphragm and the pressure sensor; a fill hole coupled to the fluid region; a sealing element coupled to the fill hole and configured for positioning forward of the mating surface; and wherein during operation the first pressure applied at the diaphragm is substantially transferred by the fluid in the fluid region and the fill hole to an inner-side of the sealing element and the first pressure is about equivalent to a second pressure applied at an outer-side of the sealing element.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 6, 2022
    Assignee: Kulite Semiconductor Products, Inc.
    Inventors: Robert Gardner, Louis DeRosa, Richard Martin
  • Patent number: 11415443
    Abstract: A flow rate detector includes: a housing; and a substrate assembly disposed in the housing. The substrate assembly has a flow rate detection element, a temperature detection element, and a circuit board on which the flow rate detection element and the temperature detection element are mounted. The circuit board includes a body portion fixed to the housing, and a protrusion extended to protrude from the body portion. The protrusion has an element fix portion to which the temperature detection element is fixed. The protrusion has a supported portion within a supported range including a position of the element fix portion. The supported range is defined from the element fix portion to a tip end of the protrusion along an extension direction of the protrusion. The supported portion is supported by the housing to suppress a displacement of the element fix portion in a thickness direction of the circuit board.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: August 16, 2022
    Assignee: DENSO CORPORATION
    Inventor: Kengo Itou
  • Patent number: 11402274
    Abstract: To obtain a temperature sensor device having high reliability and high sensitivity without cost increase. This temperature sensor device includes: a housing provided with a temperature sensor module having a temperature detection element and an external connection terminal connected to the temperature detection element via a lead wire, which are integrated using a first formation member made from a thermoplastic resin, the temperature sensor module being covered with a second formation member made from a thermoplastic resin, so as to form a connector for connecting the external connection terminal to an external signal processing circuit; and a case into which the temperature sensor module is press-fitted and which is opposed to the housing, wherein the first formation member and the second formation member are welded to each other.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: August 2, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hiroyuki Kishimoto
  • Patent number: 11385109
    Abstract: A pressure detecting circuit may include a pressure sensing circuit (101), a signal generating circuit (102), and a frequency detecting circuit (103). The pressure sensing circuit (101) and the signal generating circuit (102) may be configured to constitute an oscillating circuit (104). The signal generating circuit (102) may be configured to generate an oscillating signal based on a pressure sensed by the pressure sensing circuit (101). The frequency detecting circuit (103) may be configured to detect a frequency of the oscillating signal and determine a value of the pressure sensed by the pressure sensing circuit (101) based on the frequency of the oscillating signal.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: July 12, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengpeng Wang, Xiaoliang Ding, Chih-Jen Cheng
  • Patent number: 11359987
    Abstract: A sensor device includes a pressure-temperature detection unit and a signal processing circuit. The sensor device is configured to detect abnormalities by changing a supply voltage supplied to the pressure-temperature detection unit and to the signal processing circuit, and by monitoring changes in a pressure signal and in a temperature signal caused by changing the supply voltage.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: June 14, 2022
    Assignee: DENSO CORPORATION
    Inventor: Kazuyuki Oono
  • Patent number: 11293826
    Abstract: A device for detecting at least one property of a fluid medium, and a method for its production. The method includes a) providing at least one housing, the housing having at least one electrical contact; introducing at least one sensor element for detecting the property into the housing; c) providing at least one pressure-pipe tube, the pressure-pipe tube including at least one contacting element; d) bringing the contacting element into contact with the sensor element in such a way that an electrical connection is established between the contacting element and the sensor element; and e) introducing at least one circuit substrate into the housing in such a way that the circuit substrate is electrically connected to the electrical contact of the housing and to the sensor element, the housing and the pressure-pipe tube being produced as separate components.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: April 5, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Lux, Andreas Otto, Andreas Roehler, Jens Vollert, Markus Reinhard, Patrik Patzner, Ronny Wolf, Vincent Barnstorff
  • Patent number: 11253161
    Abstract: The present invention provides automatic zeroing and electronic level adjustment of pressure transducer in relation to patient, applied to vital signs monitors, where the automatic zeroing of circuit of pressure consists of circuit and software able to remove the value of the virtual ground voltage from the pressure calculation, and the electronic level adjustment of transducer in relation to patient consists of compensating, through software, the value in mmHg related to level difference in cmH2O informed by the user by means of monitor interface.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 22, 2022
    Assignee: ZAMMI INSTRUMENTAL LTDA
    Inventor: Luiz Henrique Vargas Fonseca
  • Patent number: 11193508
    Abstract: A system and method is provided for monitoring a hydraulic power system having at least one light emitter and a button. The method includes powering on the hydraulic power system, receiving an actuation at the button and detecting a release of the button after a first time interval, and entering a diagnostic state. The method further includes retrieving a code and displaying the code by turning on the emitter in a first pattern. In some embodiments, a system and method is provided for regulating a temperature of a hydraulic power system. In some embodiments, a system and method is provided for controlling operation of a hydraulic torque wrench.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: December 7, 2021
    Assignee: Enerpac Tool Group Corp.
    Inventors: Nathan Adam Hughes, Curtis L. Van Weelden, Benjamin W. Keeton
  • Patent number: 11181430
    Abstract: A pressure gauge includes: an outer container defining an outer chamber set to a reference pressure (Pr); an inner container disposed in the outer container; and a tube setting the inside of a first inner chamber of the inner container to a measurement pressure (Px). The inner container includes: a cylindrical rigid wall portion; first and second pressure receiving plates that displace due to a differential pressure between the reference pressure and the measurement pressure; a bellows partitioning the inner container into the first inner chamber and a second inner chamber; and a pressure detection element disposed in the second inner chamber and detecting the measurement pressure based on the displacements of the first and the second pressure receiving plates. The outer chamber and the second inner chamber are set to the reference pressure of a high vacuum that is lower than a lower limit of the measurement pressure.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: November 23, 2021
    Assignee: Q'z Corporation
    Inventor: Hisao Hojoh
  • Patent number: 11156523
    Abstract: A measurement module for measuring the differential pressure between a first and second connection point arranged in a transport line for a fluid. The measurement module includes a first connection line and a second connection line, a differential pressure sensor arranged in fluid communication with said first and second connection line, and a valve arranged in fluid communication with said first and second connection line, wherein compared to said valve, said differential pressure sensor is arranged closer to the first and second connection point.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 26, 2021
    Assignee: IMI HYDRONIC ENGINEERING INTERNATIONAL SA
    Inventor: Daniel Jilderos
  • Patent number: 11110797
    Abstract: A gauge assembly according to this disclosure includes a dial a dial face defining a scale indicative of an operating parameter, a conduit containing a first fluid and a second fluid that are immiscible during normal operating conditions. The conduit arranged about a periphery of the scale, wherein a visible demarcation between the first fluid and the second fluid is movable to correspond with the current operating parameter indicated on the scale.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: September 7, 2021
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Diego Trujillo, Guillermo Figueroa, Cristina Gascón
  • Patent number: 11101089
    Abstract: A pressure element for monitoring a fluid being applied to the pressure element, wherein the pressure element is configured to close an electrical circuit, as a result of a change in pressure which the fluid exerts on the pressure element, independently of an absolute value of the pressure, where the fluid preferably flows through a pipeline.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: August 24, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stefan Klehr
  • Patent number: 11067462
    Abstract: A sensor includes: a pressure vessel filled with an enclosed liquid; a diaphragm that seals the pressure vessel; a sensor body contained in the pressure vessel; an electric wire comprising a wiring electrically connected to the sensor body; a fixture that fixes the electric wire to the pressure vessel; a first fillet at a joining portion between the electric wire and the fixture, wherein the first fillet contacts the enclosed liquid; and a second fillet at a joining portion between the fixture and the pressure vessel, wherein the second fillet contacts the enclosed liquid.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 20, 2021
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Toru Hirayama, Yusaku Yoshida, Atsushi Yumoto, Tatsuhiko Miyauchi
  • Patent number: 11054329
    Abstract: Aspects of the subject technology relate to electronic devices with pressure sensors. A pressure sensor in a portable electronic device may include an integrated heater or may be co-operated with an external heater for the pressure sensor. The heater may be operated to heat some or all of the pressure sensor for pressure sensor testing, calibration, or temperature-controlled pressure sensing operations.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 6, 2021
    Assignee: Apple Inc.
    Inventors: David MacNeil, Gregory B. Arndt, Roberto M. Ribeiro, William E. Mickelson, Richard Yeh
  • Patent number: 10948372
    Abstract: A pressure sensing module for an electronic device includes a substrate and a module housing coupled to the substrate. The module housing defines a first chamber and a second chamber. The second chamber is separate from the first chamber. The first chamber is configured to connect to an environment around an electronic device. The second chamber is configured to connect to an internal volume of the housing of the electronic device. A first pressure sensing element is electrically coupled to the substrate and disposed in the first chamber and is operative to detect an external pressure around the electronic device. A second pressure sensing element is electrically coupled to the substrate and disposed in the second chamber and is operative to detect an internal pressure within the electronic device housing.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: March 16, 2021
    Assignee: Apple Inc.
    Inventors: Gregory B. Arndt, Krishna Prasad Vummidi Murali
  • Patent number: 10935451
    Abstract: In accordance with an embodiment, a sensor arrangement includes a pressure transducer configured to be in fluid connection with a volume region having a fluid, where the pressure transducer is configured to output a pressure signal in response to a pressure change in the volume region, the pressure signal comprising a signal curve that depends on the pressure change; a heating element configured to provide a defined temperature change of the fluid situated in the volume region, wherein the defined temperature change of the fluid brings about a corresponding pressure change in the volume region; and a processing device configured to ascertain a current functional parameter of the pressure transducer based on the signal curve of the pressure signal obtained in the volume region due to the defined temperature change provided by the heating element.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 2, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventor: David Tumpold
  • Patent number: 10876916
    Abstract: A sensor element that has high measurement precision by providing a resistance-change length ratio corresponding to a direction-specific extension length is provided. The sensor element includes an element body disposed in a sensor body to measure a temperature and a pressure and having a diaphragm deformed based on the temperature or the pressure. Additionally, the sensor element includes pressure-measuring resistors including a second resistor portion and a fourth resistor portion disposed along a diametric direction with respect to a center of an upper surface of the diaphragm and in an extension section on the upper surface of the diaphragm and a first resistor portion and including a third resistor portion disposed outside the second resistor portion or the fourth resistor portion in a compression section on the upper surface of the diaphragm to eliminate a resistance change caused by a pressure-specific temperature change.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: December 29, 2020
    Assignee: HYUNDAI KEFICO CORPORATION
    Inventor: Chi Yeon Kim
  • Patent number: 10823630
    Abstract: We present a microelectromechanical system (MEMS) graphene-based pressure sensor realized by transferring a large area, few-layered graphene on a suspended silicon nitride thin membrane perforated by a periodic array of micro-through-holes. Each through-hole is covered by a circular drum-like graphene layer, namely a graphene “microdrum”. The uniqueness of the sensor design is the fact that introducing the through-hole arrays into the supporting nitride membrane allows generating an increased strain in the graphene membrane over the through-hole array by local deformations of the holes under an applied differential pressure. Further reasons contributing to the increased strain in the devised sensitive membrane include larger deflection of the membrane than that of its imperforated counterpart membrane, and direct bulging of the graphene microdrum under an applied pressure. Electromechanical measurements show a gauge factor of 4.4 for the graphene membrane and a sensitivity of 2.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: November 3, 2020
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Liang Dong, Qiugu Wang, Wei Hong
  • Patent number: 10807858
    Abstract: A device transmits a movement and a force between a first zone and a second zone which are insulated from one another in a sealed manner. The device includes a planar support, a transmission element that is rotatably movable with respect to the support by a pivot joint having an axis of rotation that is parallel to a plane of the support, an opening in the support through which the transmission element passes and level with which the pivot joint is positioned. The transmission element includes at least one first transmission arm on one side of the plane of the support and one second transmission arm on the other side of the plane of the support, and sealed insulation positioned in the opening, such that it insulates the first zone from the second zone in a sealed manner and allows the rotational movement of the transmission element.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 20, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Loic Joet
  • Patent number: 10795390
    Abstract: A circuit for providing temperature compensation to a sense signal having a first temperature coefficient includes a temperature compensation circuit receiving a temperature sense signal indicative of a temperature associated with the sense signal where the temperature compensation circuit is digitally configurable by at least one digital signal to generate a compensating impedance signal having a second temperature coefficient. The compensating impedance signal provides an impedance value in response to the temperature sense signal. The compensating impedance signal is applied to modify the sense signal to provide a modified sense signal having substantially zero temperature coefficient over a first frequency range. The circuit further includes an amplifier circuit receiving the modified sense signal and generating an output signal indicative of the sense signal where the output signal has substantially zero temperature coefficient over the first frequency range.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: October 6, 2020
    Assignee: Alpha and Omega Semiconductor (Cayman) Ltd.
    Inventors: Rhys Philbrick, Steven P. Laur, Nicholas Archibald
  • Patent number: 10768068
    Abstract: A pressure scanner assembly having at least one replaceable sensor plate, wherein each of the replaceable sensor plates has at least one pressure sensor adapted to transmit a signal substantially indicative of a sensed pressure condition. A memory chip, which stores correction coefficients for each of the pressure sensor to compensate for thermal errors, may be installed on each of the replaceable sensor plates. The signals from the pressure sensors are multiplexed and may be outputted in analog or digital form. The pressure scanner assemblies described herein have sensor plates that can be interchanged with other sensor plates of the same or different pressure range without disrupting the electronic configuration of the pressure scanner assembly or having to recalibrate and/or update the memory chip installed thereon.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: September 8, 2020
    Assignee: Kulite Semiconductor Products, Inc.
    Inventors: Richard Martin, Louis DeRosa, Joseph R. VanDeWeert
  • Patent number: 10704969
    Abstract: A stress sensor is provided, including a substrate and a bridge circuit disposed thereon. The bridge circuit is coupled between an output node and a ground node. The bridge circuit includes a first branch and a second branch, the first having a first resistor, R1, having a first orientation and coupled to a tuning resistor, Rtune, at a first intermediate node. The second branch includes a second resistor, R2, having a second orientation that is different from the first orientation, and coupled to a variable resistor, Rvar, at a second intermediate node. The bridge circuit includes an amplifier having a positive input terminal coupled to the second intermediate node, and a negative input terminal coupled to the first intermediate node. The amplifier generates a voltage output at the output node as a function of mechanical stress applied to the substrate. Rvar is non-linearly tunable based on the voltage output.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: July 7, 2020
    Assignee: THE BOEING COMPANY
    Inventor: Alfio Zanchi
  • Patent number: 10684184
    Abstract: A pressure sensor assembly having a printed circuit board (PCB) with a pressure sensor mounted on the PCB, a side wall engaging the PCB, a membrane, a cavity defined by the membrane, the side wall and the PCB, and a gel or liquid filling the cavity. The pressure sensor assembly may include a fill-hole extending into the cavity through which the cavity may be filled with the gel or liquid. The fill-hole may extend through one or both of the PCB and/or the side wall. The cavity is defined in part by a septum that allows a needle to pierce the septum for filling the cavity with the gel or liquid. A method of forming the pressure sensor assembly may include filling a cavity of the pressure sensor assembly with a gel or liquid through a fill-hole and curing the gel or liquid once in the cavity.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 16, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Richard Wade, Jason D. Patch
  • Patent number: 10680608
    Abstract: A multiplexer comprises: a first switch; a second switch; a dummy component coupled to the first switch and the second switch and configured to: reduce a first charge injection of the first switch, and reduce a second charge injection of the second switch; and an output coupled to the first switch, the second switch, and the dummy component. A method comprises: providing an output from either a first switch or a second switch; coupling, by a dummy component, to the first switch and the second switch; using a BBM action; and reducing, by the dummy component, a first charge injection of the first switch or a second charge injection of the second switch.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: June 9, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Priyank Anand, Anand Kannan, Venkatesh Guduri
  • Patent number: 10670482
    Abstract: A sensor element for a pressure sensor, includes a sensor membrane on which a defined number of piezoresistors are situated, the piezoresistors being configured in a circuit in such a way that, when there is a change in pressure an electrical change in voltage can be generated; at least two temperature measuring elements configured in relation to the sensor membrane in such a way that temperatures of the sensor membrane at positions of the piezoresistors can be measured using the temperature measuring elements, an electrical voltage present at the circuit of the piezoresistors due to a temperature gradient being capable of being compensated computationally using the measured temperatures.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 2, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Zehringer, Zoltan Lestyan, Richard Fix, Jochen Franz, Michaela Mitschke, Tobias Sebastian Frey
  • Patent number: 10605821
    Abstract: A speed sensor of a rotatable output element of a transmission comprises a rotating tone wheel (33) and an inductive pick-up (29) comprising one of a drain plug, a fill plug or a level plug. The arrangement is suitable for providing a vehicle speed signal to a vehicle tachograph.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: March 31, 2020
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventor: Stuart Tavener
  • Patent number: 10551269
    Abstract: Disclosed is a sensor for measuring the pressure prevailing in a motor vehicle cylinder head, the sensor including a tubular body and an element sensitive to variations in the pressure, mounted in the tubular body. The sensitive element includes a tether including a fixing portion for fixing the tether to the tubular body, a tubular portion and a membrane fixed to the tubular portion at a connecting zone. The sensor is notable in that the connecting zone and the fixing zone are separated by a non-zero distance along the longitudinal axis and in that the tether includes, between the connecting zone and the fixing portion, a portion for absorbing a mechanical deformation.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: February 4, 2020
    Assignees: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Matthieu Joly, Cyrille Patri
  • Patent number: 10495496
    Abstract: Systems and methods for measuring a flow rate through a nozzle include generating a first polynomial relationship between pressure and output voltage for a first pressure transducer located at one end of the nozzle and generating a second polynomial relationship between pressure and output voltage for a second pressure transducer located at another end of the nozzle. When a first voltage signal is received from the first pressure transducer and a second voltage signal from the second pressure transducer, the associated first and second pressures are generated based on the first and second polynomial relationships. A flow rate through the nozzle is then constructed based on the difference between the first pressure and the second pressure.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 3, 2019
    Assignee: Hydro Flow Products, Inc.
    Inventor: Marcial S. Villaverde
  • Patent number: 10488290
    Abstract: A sensor unit including a measuring cell with a section-wise heat-conducting surface, a housing in which the measuring cell for the most part is contained, and an access channel to the measuring cell. The sensor unit includes a cavity that is confined for the most part by an outer surface of the measuring cell and by a wall of the housing facing towards the surface of the measuring cell. The cavity is closed in itself.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: November 26, 2019
    Assignee: INFICON GMBH
    Inventors: Hansjakob Hanselmann-Willi, Francesco Scuderi
  • Patent number: 10385754
    Abstract: An internal combustion engine fluidly coupled to an exhaust aftertreatment system that includes an exhaust purifying device is described. A pressure monitoring device is disposed to monitor a pressure differential between an inlet and an outlet of the exhaust purifying device. A method of monitoring the exhaust purifying device includes monitoring a pressure differential between an inlet and an outlet thereof, and determining an exhaust gas flowrate associated with operation of the internal combustion engine. A raw flow resistance is dynamically determined based upon the pressure differential and the exhaust gas flowrate, and an estimated flow resistance is determined based upon the raw flow resistance. The exhaust purifying device is evaluated based upon the estimated flow resistance.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: August 20, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Raffaele Esposito, Alberto Giordano
  • Patent number: 10317299
    Abstract: A pressure sensor comprising at least a pressure measuring cell, a pressure balancer, as well as at least one measurement line to transfer a pressure applied to the pressure means to the pressure measuring cell, wherein the pressure sensor comprises at least one compensation line showing the same features as the measurement line, which is arranged parallel in reference to the measurement line.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: June 11, 2019
    Assignee: VEGA Grieshaber KG
    Inventor: Clemens Hengstler
  • Patent number: 10288515
    Abstract: A pressure difference sensor with at least one pressure difference measuring cell, at least a first pressure means, and at least a first measurement line for transferring a first pressure applied upon the first pressure means to a first side of the pressure difference measuring cell, characterized in that the pressure difference sensor comprises at least a first compensation line, which is arranged parallel to the first measurement line and is connected to a second side of the pressure difference measuring cell.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: May 14, 2019
    Assignee: VEGA GRIESHABER KG
    Inventor: Clemens Hengstler
  • Patent number: 10288511
    Abstract: The invention is a method for determining an output value, which is equivalent to a pressure or a value proportional to the pressure, comprising a relative pressure sensor with at least one measured capacity formed between a basic body and a measuring membrane and at least one reference capacity formed between the basic body and the measuring membrane, with the determination of the output value comprising at least the following steps: (1) determining the measured capacity, (2) determining the reference capacity, (3) comparing a value of a first function FZ of the reference capacity to the measured capacity and (4) issuing A=FQ(CM,CR) for CM=FZ(CR) A=FCR(CR) for CM>FZ(CR) A=FCM(CM) for CM<FZ(CR) as the output value.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 14, 2019
    Assignee: VEGA GRIESHABER KG
    Inventors: Bernhard Weller, Johannes Seiffe
  • Patent number: 10288527
    Abstract: A pressure sensing apparatus is provided for sensing gas pressure at a pressure tapping. The apparatus has a pressure sensor which provides a pressure measurement signal in response to the pressure of a gas admitted into the sensor at a gas inlet port thereof. The apparatus further has a gas conduit which extends from the inlet port. An end of the conduit distal from the inlet port is adapted to receive the gas at the pressure tapping. The apparatus further has a condenser on the gas conduit. The condenser contains condensation surfaces on which humidity in the gas flowing from the pressure tapping to the inlet port condenses out. In operation the temperature at the condenser is lower than at the pressure tapping.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: May 14, 2019
    Assignee: ROLLS-ROYCE PLC
    Inventor: Stuart James Kirby
  • Patent number: 10288513
    Abstract: A combined pressure and temperature sensing device includes a sensor port geometry that provides improved contact between a fluid media being measured and a thermistor cavity of the sensor port. The increased contact area provides improved response time and accuracy compared to previously known integrated pressure-temperature sensors. A temperature sensor element is offset from a pressure sensor element relative to a central axis of the temperature-pressure sensor body/package to facilitate substantially increasing a pressures sensor cavity volume without increasing the overall sensor port diameter. A wire-bondable thermistor support portion facilitates high volume automated production line. The temperature sensing element may be resistance welded to the thermistor support portion in a parallel manufacturing process.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 14, 2019
    Assignee: Sensata Technologies
    Inventors: Jun H. Bae, Nikhil B. Lal, Guanshi Li, Shuo Robert Chen, Mark W. McBrine
  • Patent number: 10247615
    Abstract: A sensor assembly is provided that allows for a more rapid sensing of thermal changes. In preferred embodiments, the sensor assembly includes a housing, sensor package, bushing, coupling and gasket. The bushing is made from a conductive material like copper or silver and provides a conductive path from the bottom of the sensor package directly into the medium whose temperature is to be sensed or close thereto. A coupling is provided between the conductive bushing the metal housing to prevent heat exchange between the metal housing and the bushing. The gasket is placed in compression and provides a constant force holding the conductive bushing against the bottom of the sensor package.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: April 2, 2019
    Assignee: DUNAN SENSING, LLC
    Inventors: Claudio Martinez, Danny (Duy) Do
  • Patent number: 10240993
    Abstract: A pressure sensor for recording a pressure of a fluid medium in a measuring cell. The pressure sensor includes a sensor housing, at least one first pressure sensor element for measuring a pressure of the medium, and a drive and/or evaluation circuit for outputting a signal indicative of a pressure acting on the first pressure sensor element. The drive and/or evaluation circuit is configured on or in a circuit substrate disposed within the sensor housing. The first pressure sensor element is configured on or in the circuit substrate and is separated from the fluid medium by at least one first separating membrane.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 26, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Alexander Lux, Patrik Patzner
  • Patent number: 10215655
    Abstract: A pressure sensor assembly having a sensor unit, a pressure port, and an electrical connector. The sensor unit may include a printed circuit board (PCB), a pressure sensor, a support, and a media isolation layer. The PCB may have a first side and an opposite second side, where the pressure sensor may be secured to the first side. The support may also be secured to the first side of the PCB and may circumferentially surround the pressure sensor and/or may define a media sensing opening. The media isolation layer (e.g., a gel or other material) may be provided in the media sensing opening and encase the pressure sensor, where the media isolation layer may transfer a pressure provided by the media in the pressure port to the pressure sensor and may act as a barrier between the media and the pressure sensor.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 26, 2019
    Assignee: Honeywell International Inc.
    Inventors: Todd Eckhardt, Lamar Floyd Ricks
  • Patent number: 10184910
    Abstract: A sensor device package includes a pressure sensor and a humidity sensor mounted on the same substrate and in the same housing with light protection for the pressure sensor a media opening for gas exchange for the humidity sensor. Light protection and rapid response times are provided through strategic positioning of the media opening, strategic arrangement of the pressure sensor, humidity sensor, and the media opening, and/or the use of opaque materials.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: January 22, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Lammel, Sibylle Waffenschmidt, Ando Feyh, Gary O'Brien, Andrew Graham
  • Patent number: 10184855
    Abstract: Disclosed is a pressure detecting device having a temperature sensor, the device including: a housing having a first chamber, a second chamber, and a port part having a fluid guide tube that guides a pressure transmitting fluid to the second chamber; a lead frame coupled to the housing and configured for being connected to an external device; a circuit substrate electrically connected to the lead frame and including a first surface and a second surface; a pressure detecting element provided on the second surface of the circuit substrate and generating an electrical signal according to a pressure change; a tube coupled to the port part, whereby a first end of the tube is open and provided inside the first chamber; and a temperature detecting element provided inside the tube and transmitting an electrical signal generated according to a temperature change to the circuit substrate.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: January 22, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Comet Network Co., Ltd.
    Inventors: Min Kyu Lee, Gi Young Nam, Dong Kyun Seo, Hwan Park, Sun Woo Choi, Sang Joo Kim, Jung Min Kim
  • Patent number: 10175137
    Abstract: A pressure measurement device has: a first chamber coupled to at least one fluid utilization unit, a second chamber coupled to a vacuum source, a seat with a passage for the fluid between the first and the second chamber, a plug for allowing or blocking the fluid flow through the passage, a retaining member for retaining the plug against the seat, a pressure sensor, and a measurement cavity coupled to the first chamber. The retaining member has a channel arranged to couple the first chamber and the measurement cavity.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: January 8, 2019
    Assignee: AKWEL SA
    Inventor: Marco Martino Spanevello
  • Patent number: 10161821
    Abstract: A pressure change measuring unit causes a temperature control unit to operate and vary the temperature of a sensor chip in a predetermined temperature range, and measures changes in pressure value output from the sensor chip whose temperature is being varied. A temperature characteristic calculating unit calculates a temperature characteristic of the sensor chip from changes in the temperature of the sensor chip caused by the operation of the temperature control unit and changes in pressure value measured by the pressure change measuring unit.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: December 25, 2018
    Assignee: AZBIL CORPORATION
    Inventors: Takuya Ishihara, Masaru Soeda, Masashi Sekine, Hidenobu Tochigi
  • Patent number: 10119888
    Abstract: A temperature sensor integrated type semiconductor pressure sensor apparatus includes a temperature detection device, a lead wire covered with a lead wire protection material, and a terminal, which are integrated together by a thermoplastic resin. This can prevent the lead wire from being deformed in the assembly process, thereby simplifying the assembly process. Furthermore, the temperature detection device is exposed from the opening at the tip of the protrusion, which can secure enough temperature response. Furthermore, the temperature detection device, the lead wire and the lead wire protection material are covered with the thermoplastic resin, so they are protected from combustion gas component, oil contaminant and corrosion product included in intake air.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: November 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hiroyuki Kishimoto
  • Patent number: 10094725
    Abstract: A production method for a detection apparatus includes: forming at least one sensitive region having at least one exposed sensing area on and/or in a semiconductor substrate, encapsulating at least one part of the semiconductor substrate so that the at least one sensing area is sealed in an air-, liquid- and/or particle-tight fashion from an external environment, and forming at least one opening so that at least one air, liquid and/or particle access from the external environment to the at least one sensing area is created, wherein before forming the at least one opening, at least one first test and/or calibration measurement is performed, for which at least one sensor signal of the at least one sensitive region having the at least one sensing area sealed in an air-, liquid- and/or particle-tight fashion is determined as at least one first test and/or calibration signal. Also described are related detection apparatuses.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 9, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Jochen Reinmuth, Timo Lindemann
  • Patent number: 10063195
    Abstract: An amplifier circuit includes a converter configured to convert a predefined physical quantity to a resistance value, and the resistance value converted by the converter is converted to a voltage value and then amplified. The converter includes variable resistance sensors of piezoresistance elements. A bias unit is configured to determine a bias current of the converter, and includes bias resistances. An operation amplifier unit receives, as input signals, output signals from the bias unit and the converter, and includes feedback resistances respectively connected to input and output ends of a first operational amplifier. The first operational amplifier is a whole differential operational amplifier including a common-mode feedback circuit.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: August 28, 2018
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Tomohiko Ogawa, Yoshihiko Koizumi
  • Patent number: 10048122
    Abstract: A pyranometer, comprises a thermal sensor, and a diffusing member positioned so as to be opposed to a receiving surface of the thermal sensor.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: August 14, 2018
    Assignee: EKO INSTRUMENTS CO., LTD.
    Inventors: Toshikazu Hasegawa, Akihito Akiyama, Naoto Shimada