Force Or Pressure Measuring Type Patents (Class 310/338)
  • Patent number: 10451508
    Abstract: A pressure transducer comprises a housing including a body section and at least one end cap at one end of the body section, which are made of piezoelectric crystal, and a piezoelectric resonator in the housing. The body section and the end cap are bonded by an atomic diffusion bonding method.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: October 22, 2019
    Inventors: Shigeo Daito, Takenori Motoki, Noriyuki Matsumoto, Martine Hori
  • Patent number: 10444090
    Abstract: A force sensor may comprise a sense die comprising a top part and a bottom part. Generally, the top part may comprise a first surface and a second surface, and the bottom part may comprise a first surface for direct contact with a substrate. Typically, the bottom part may be formed by removing a portion of the material of the sense die around the edges of a first face of the sense die. Typically, adhesive may replace the portion of the sense die material removed from the edges of the first face of the sense die. Thus, the adhesive may secure the first surface of the bottom part of the sense die directly to the substrate without serving as an interface between the bottom part of the sense die and the substrate.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: October 15, 2019
    Assignee: Honeywell International Inc.
    Inventors: Jason Dennis Patch, Todd Eckhardt, Jim Machir, Richard Wade, Jim Cook
  • Patent number: 10442092
    Abstract: To obtain a force detection device and a robot light in weight and having excellent detection accuracy, a force detection device includes a first member, a second member joined to the first member, and a piezoelectric element joined to the second member. A material forming the first member is different from a material forming the second member. The first member is formed in a plate shape. The piezoelectric element and the second member are disposed at an end portion of the first member. A through-hole is formed in the center portion of the first member.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: October 15, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiteru Nishimura, Nobuyuki Mizushima, Toshiyuki Kamiya, Hiroki Kawai
  • Patent number: 10430631
    Abstract: MEMS ultrasound fingerprint ID systems are provided. Aspects of the systems include the capability of detecting both epidermis and dermis fingerprint patterns in three dimensions. Also provided are methods of making and using the systems, as well as devices that include the systems.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: October 1, 2019
    Inventors: Yipeng Lu, David Horsley, Hao-Yen Tang, Bernhard Boser
  • Patent number: 10352800
    Abstract: A pressure sensor includes a piezoelectric substrate having a generally planar structure and an anchor location fixing the piezoelectric substrate at the periphery of the planar structure of the piezoelectric substrate. The planar structure of the piezoelectric substrate has a first region having a first characteristic thickness adjacent to the anchor location, and a second region have a second characteristic thickness at a middle region of the substrate. The second characteristic thickness is less than the first characteristic thickness such that the planar structure in the second region is displaced relative to the neutral axis of the planar structure such that while undergoing bending the second region has either mostly compressive or mostly tensile stress.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: July 16, 2019
    Assignee: MKS Instruments, Inc.
    Inventors: Srinivas Tadigadapa, Nishit Goel, Stephen Bart
  • Patent number: 10347095
    Abstract: In some embodiments, systems and methods are configured to track palletized products. Some embodiments comprise: a first array of sensors positioned relative to multiple products collectively arranged on a first transport pallet configured to support the multiple products while being transported; a wirelessly transceiver; and a pallet control circuit communicatively coupled with the wireless transceiver and the first array of sensors, wherein the pallet control circuit is configured to receive sensor data from one or more sensors of the first array of sensors, determine a condition of one or more products of the multiple products at least as the multiple products are transported based on the sensor data, and cause condition information to be wirelessly transmitted to a separate notification system configured to provide notification to a worker regarding the condition of the one or more products.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 9, 2019
    Assignee: Walmart Apollo, LLC
    Inventors: Todd D. Mattingly, Greg A. Bryan, Benjamin D. Enssle, Cristy C. Brooks, David C. Winkle
  • Patent number: 10340850
    Abstract: A crystal oscillator device is disclosed. The crystal oscillator device includes: a crystal oscillator including a casing, a crystal piece, a pair of excitation electrodes configured to excite a main vibration, and a pair of sub vibration electrodes configured to excite a sub-vibration; and an alarm generator configured to generate an alarm based on a signal whose amplitude is equal to or less than a reference value, the signal being generated in the sub vibration electrodes.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: July 2, 2019
    Inventors: Masakazu Kishi, Hajime Kubota, Masayuki Itoh, Yoshinori Mesaki
  • Patent number: 10330504
    Abstract: Actuator bracket having a sensor is disclosed. An example apparatus includes a bracket to couple to a controller at a first location and to couple to an actuator at a second location different than the first location. The bracket includes cavities defined by ribs of a first side. The apparatus also includes a first sensor coupled to the bracket adjacent the first location. The first sensor is to measure a characteristic of a portion of the bracket adjacent the first location.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 25, 2019
    Inventors: Shannon Eugene Jelken, Mark Allen Rachuy, Benjamin Uriah Good
  • Patent number: 10323996
    Abstract: A pressure sensor and a manufacturing method thereof are provided. The pressure sensor includes a thin-film transistor (TFT) array and a pressure-sensitive layer covering the TFT array. The pressure-sensitive layer includes a plurality of insulating layers and one of one-directional materials arranged on the same plane and two-directional materials. The insulating layers and the one- or two-directional materials are alternately stacked so as to effectively enhance pressure resolution.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: June 18, 2019
    Assignee: Winbond Electronics Corp.
    Inventors: Yu-Hsuan Ho, Ming-Chih Tsai, Ming-Hung Hsieh
  • Patent number: 10282578
    Abstract: An array sensor is provided. The array sensor includes a sensing array, a memory array, and an access module. The sensing array includes a plurality of sensing units, wherein each of the sensing units includes a sensing electrode. The memory array includes a plurality of memory units, wherein each of the memory units is disposed below the corresponding sensing unit or between the two adjacent sensing units. The access module selectively reads a sensing value of the sensing electrode of the sensing unit to provide a sensing output, or accesses the memory unit.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: May 7, 2019
    Assignee: Egis Technology Inc.
    Inventor: Todd Lin
  • Patent number: 10215142
    Abstract: The present disclosure describes an injector for an internal combustion engine which includes an injector housing, a piezo-actuator control unit having a first set of terminals, a connecting plug on a head of the injector housing, the connecting plug having a second set of terminals, and an electrical connection between the control unit and the connecting plug within the injector housing. The electrical connection comprises a contact element with conductor tracks integrated into an insulating body. The conductor tracks are connected to the terminals of the control unit and of the connecting plug. A first end of the insulating body abuts the control unit or the connecting plug and a second end is spaced from the connecting plug or the control unit. The contact element includes an elastic device by means of which the insulating body is braced against the component it abuts.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: February 26, 2019
    Inventors: Emanuel Sanftleben, Martin Ploetz, Martin Simmet, Steffen Kernbach
  • Patent number: 10209148
    Abstract: An object can depress an input device, such as, for example, a function button in an electronic device. A resistive element having a mechanically resistive force can be disposed to resist the depression or movement of the input device. One or more electrodes can be disposed to provide a measure of capacitance based on the depression of the input device. A shield can be disposed to reduce the parasitic capacitance between the one or more electrodes and the object. The electronic device can include a fingerprint sensor operably connected to at least one of the one or more electrodes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 19, 2019
    Assignee: Apple Inc.
    Inventors: Benjamin B. Lyon, Dale Setlak, Michael B. Wittenberg, Shin John Choi
  • Patent number: 10209152
    Abstract: A force sensor unit includes a force sensor, a casing housing the force sensor within a space surrounded by one end portion, another end portion, and a side portion, an attachment member having a first attachment portion that can be attached to a robot arm of a robot and a second attachment portion detachably attached to the one end portion of the casing in a position different from that of the first attachment portion, and a wiring cable connected to the force sensor and routed from inside the casing to outside of the casing, wherein a positioning portion for positioning with respect to the robot arm is provided in the first attachment portion, and a part of the wiring cable is provided along a circumferential direction of the side portion.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 19, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Akira Matsuzawa, Tetsuya Kawase, Yoshiteru Nishimura
  • Patent number: 10177301
    Abstract: A method of fabricating a piezoelectric/conductive hybrid polymer thin film is provided, which is promoting an electric output of a piezoelectric polymer and includes: a mixing step including: forming a piezoelectric solution by dissolving a PVDF-TrFE in an active solvent; forming a conductive solution by dissolving a PEDOT:PSS in a water; and forming a piezoelectric/conductive hybrid polymer solution by mixing the piezoelectric solution and the conductive solution; a filming step, wherein the piezoelectric/conductive hybrid polymer solution is heated, thus the piezoelectric/conductive hybrid polymer thin film is formed; and an anneal step, wherein the piezoelectric/conductive hybrid polymer thin film is recrystallized and a nano-sized protruding structure is formed on a surface of the piezoelectric/conductive hybrid polymer thin film.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: January 8, 2019
    Inventors: Chien-Chong Hong, Tong-Miin Liou, Kai-Lun Lin
  • Patent number: 10168242
    Abstract: A glow plug adaptor for pressure measurement in a combustion chamber of an internal combustion engine includes an adaptor sleeve attached to an adaptor head that contains a pressure sensor with a diaphragm. A sealing shoulder can be screwed into an opening in a combustion chamber to provide a pressure-tight seal and permit passage of signal conductors from the pressure sensor through the adaptor sleeve. The adaptor head is tapered at the proximal combustion chamber end, and in the adaptor head a cavity is formed in such a way that the cavity is bounded by the diaphragm of the pressure sensor mounted therein and by a closed end wall of the adaptor head.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: January 1, 2019
    Assignee: Kistler Holding AG
    Inventors: Stefan Brechbühl, Simon Brunner
  • Patent number: 10161823
    Abstract: A piezoelectric pressure sensor includes a sensor housing that accommodates a membrane, a piezoelectric sensor, a charge pick-off and a pre-stressing assembly. The membrane captures a pressure profile, and polarization charges are generated accordingly on the piezoelectric sensor by the captured pressure profile. The pre-stressing assembly includes a pre-stressing body and a pre-stressing sleeve and mechanically pre-stresses the piezoelectric sensor. The charge pick-off receives the polarization charges and is electrically insulated from the pre-stressing sleeve by a second gap. The charge pick-off is mechanically connected to the pre-stressing body via a first electric insulation body on a side of the pre-stressing body that faces away from the membrane and seals the second gap in a pressure-tight manner from an environment of the second gap.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: December 25, 2018
    Inventors: Reinhold Buck, Martin Giger
  • Patent number: 10138968
    Abstract: Various braking devices, systems, and methods are disclosed. In some embodiments, the braking device includes a support element, a block of friction material supported by the support element, at least one piezoceramic sensor supported by the support element and interposed between the block of friction material (and the support element, and a protective element located at the piezoceramic sensor and embedding the latter. The protective element can have one or more layers of resin-based material applied to protect the piezoceramic sensor and direct a predetermined part of the external compression force onto an area of the support element surrounding the piezoceramic sensor. In some embodiments, a signal transduction device is provided and includes at least one piezoceramic sensor supported on a support element and has an integral protective coating having properties of mechanical and temperature resistance.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: November 27, 2018
    Assignee: ITT Italia S.r.l.
    Inventors: Daniele Donzelli, Mattia Solari, Marco Terranova, Stefano Serra, Luca Martinotto
  • Patent number: 10132156
    Abstract: Downhole distributed pressure sensor arrays include sensor housings each comprising at least one pressure sensor in a pressure housing. Downhole pressure sensors include a housing, at least one pressure sensor in a pressure housing portion of the housing, and at least one isolation element positioned at an outer wall of the housing.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: November 20, 2018
    Assignee: Quartzdyne, Inc.
    Inventors: Brian T. Leeflang, G. Scott Brown
  • Patent number: 10128837
    Abstract: Embodiments disclosed herein provide for an improved system and method of identifying objects using capacitive sensing technology. Embodiments provide for a sensing array including a plurality of capacitive sensor pads, as well as a microcontroller configured to detect and identify the plurality of objects. Embodiments further provide for encoding each of the plurality of objects with a unique ternary code.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: November 13, 2018
    Assignee: Horizon Group USA, INC
    Inventors: Charles R. Mahoney, Stephen Weiss
  • Patent number: 10119874
    Abstract: A pressure transducer comprising a flexible member made of amorphous quartz and a crystalline quartz sensor are coupled together without an adhesive material. Instead, the amorphous quartz and the crystalline quartz sensor are coupled together at the molecular level. In some embodiments, the crystalline quartz sensor remains in compression or tension during the entire operating range of the pressure transducer. In one embodiment, the crystalline quartz sensor is pre-stressed in either compression or tension when the pressure transducer is exposed to atmospheric pressure. In one embodiment, pressure transducer is located in pressure stabilizing system.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: November 6, 2018
    Assignee: Fluke Corporation
    Inventors: Timothy Byron Brown, Eric Lane Solis
  • Patent number: 10113598
    Abstract: Method wherein at least one piezoceramic sensor (15) and an electric circuit (18) to collect an electric signal emitted by the piezoceramic sensor (15) when subjected to a mechanical stress and possibly processing it are made as a unit electrically insulated (118) equipped with at least a branching (119) ending with respective electric contacts (20,21) having connected the at least one piezoelectric sensor (15), where the electric circuit (18) and the at least one sensor (15) are mechanically fixed integral with a first surface (13) of a supporting metal element (11) of a brake pad (1) and branching (119) is formed so as to position the at least one piezoelectric sensor (15) at a predetermined point of the first surface (13).
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: October 30, 2018
    Assignee: ITT Italia S.r.l.
    Inventors: Fabrizio Merlo, Luca Martinotto, Mattia Solari, Daniele Donzelli
  • Patent number: 10101227
    Abstract: A piezoelectric pressure sensor includes a sensor housing enclosing a membrane, a piezoelectric sensor, an electrode arrangement and a pre-stressing body. The membrane captures a pressure profile causing polarization charges generated on the piezoelectric sensor. The electrode arrangement receives the polarization charges generated and includes a charge-pick-off and a charge output. The charge pick-off is electrically and mechanically connected to the charge output, which is electrically is mechanically connected to the pre-stressing body via an electrical feedthrough arrangement on a side of the pre-stressing body that faces away from the membrane and seals the third gap in a pressure-tight manner from an environment of the third gap.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: October 16, 2018
    Inventors: Reinhold Buck, Martin Giger
  • Patent number: 10014344
    Abstract: Some disclosed devices may include a thin-film transistor (TFT) substrate, an electret film and an array of addressable pixels electrically connected to the TFT substrate. The array of addressable pixels may be an array of electrodes proximate a first side of the electret film. The electrodes maybe capable of coupling charge from the electret film to the TFT substrate in response to an acoustic wave.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 3, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: John Keith Schneider, Jack Conway Kitchens, II
  • Patent number: 10006827
    Abstract: A piezoelectric pressure sensor includes a membrane for detecting a pressure profile, a piezoelectric sensor on which polarization charges are produced by the detected pressure profile, an electrode arrangement receiving and transmitting the generated polarization charges as signals via a charge output. The sensor further includes an electrical connecting element and an electrical signal conductor. The electrical connecting element is electrically and mechanically connected to the electrical signal conductor. The charge output is connected to the electrical connecting element in certain areas and transmits signals through the electrical connecting element into the electrical signal conductor.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: June 26, 2018
    Inventors: Reinhold Buck, Martin Giger
  • Patent number: 9989628
    Abstract: The present invention relates to a method of controlling a pulsed radar level gauge system, comprising the steps of: acquiring a signal indicative of a present operating temperature; determining an initial frequency control parameter for control of at least one of transmission signal generating circuitry and reference signal generating circuitry based on the present operating temperature and a plurality of data sets each comprising data indicative of a previous operating temperature and a previously determined frequency control parameter for the previous operating temperature; and controlling, starting from the initial frequency control parameter, at least one of the transmission signal generating circuitry and the reference signal generating circuitry to achieve the known frequency difference between the first pulse repetition frequency and the second pulse repetition frequency at the present operating temperature.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: June 5, 2018
    Assignee: Rosemount Tank Radar AB
    Inventors: Leif Nilsson, Håkan Delin, Håkan Nyberg
  • Patent number: 9989578
    Abstract: A sealing gasket for an electrical connector system includes a resilient element configured to seal an interface between a header surface and a connector surface. The sealing gasket further includes thin-film sensing elements in contact with the resilient element that are configured to define a resistance of an electrical network based on a force applied to the sealing gasket. In some configurations, the sensing elements are arranged in a series electrical network and establish a conductive path when the force is greater than a predetermined force at each of the sensing elements. The thin-film sensing elements may be coupled to a controller that is configured to output a diagnostic based on a state of the electrical network.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 5, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Mahmoud Yousef Ghannam, Swadad A. Carremm, Aed M. Dudar, Kam Hage
  • Patent number: 9983084
    Abstract: A pressure sensing assembly includes: a substrate; a pressure sensor on the substrate; a package, the substrate and the pressure sensor being embedded in the package; and a pressure adapter, with a first interface, external to the package and having a first area, and a second interface, coupled to the pressure sensor and having a second area, different from the first area. The pressure adapter is configured to transfer a force between the first interface and the second interface so that a pressure on the second interface is different from a pressure on the first interface.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: May 29, 2018
    Inventor: Mario Giuseppe Pavone
  • Patent number: 9965077
    Abstract: The present disclosure relates to a force sensor including a first substrate, a first electrode installed in a pattern on an upper surface of the first substrate, a second substrate disposed above and spaced apart from the first substrate, a second electrode installed in a pattern on a lower surface of the second substrate, facing the first electrode, and a dielectric interposed between the first substrate and the second substrate, wherein the dielectric includes a first dielectric surrounding an outside of the second electrode, and a pressure rib connecting the first dielectric to the first electrode, and a method for preparing the same, and shows a remarkably superior effect to related art, in terms of capacitance, interactivity and durability.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 8, 2018
    Inventors: Heesuk Kim, Jong Ho Kim, Sang-Soo Lee, Yon Kyu Park, Min-Seok Kim
  • Patent number: 9952293
    Abstract: A magnetic piezoelectric composite adjusts magnetic anisotropy strength in a bimetallic member and includes: a piezoelectric layer to produce a strain in response to receipt of a strain voltage; and the bimetallic member disposed on the piezoelectric layer, the bimetallic member including: a plurality of metal layers, such that a second metal layer is interposed between a pair of first metal layers, the bimetallic member being ferromagnetic; and a magnetic anisotropy strength that changes in response to receipt of the strain from the piezoelectric layer.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: April 24, 2018
    Inventors: Daniel B. Gopman, Robert D. Shull
  • Patent number: 9917492
    Abstract: An electric motor is provided. The motor includes a motor frame assembly including a motor frame and a motor housing. A stator is fixed relative to the motor frame assembly. A rotor including a rotor shaft is mounted in the motor frame assembly for rotational movement relative to the motor frame assembly about an axis. A rotor jack is operable to selectively support the rotor shaft. The rotor jack is shiftably coupled relative to the motor frame assembly for movement between a support position, in which the jack is shifted into supporting contact with the rotor shaft, and a retracted position, in which the jack is spaced from the rotor shaft.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: March 13, 2018
    Assignee: Nidec Motor Corporation
    Inventors: Kenneth R. Friedman, Ronald W. Schmidt, Ron J. Bourgeois
  • Patent number: 9904382
    Abstract: An operation input device has a housing including a concave portion in which an information display device is accommodated. A piezoelectric element of a flat film shape and a control IC connected to the piezoelectric element are built in a base portion of the housing. The control IC is connected to a device IC of the information display device. When a user's finger touches an attachment region of the piezoelectric element in the base portion of the housing, a detection signal corresponding to the touch position and a pressing amount is outputted from the piezoelectric element. The control IC generates operation information based on the detection signal, and outputs the operation information to the device IC of the information display device. The device IC shows display corresponding to the operation information.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: February 27, 2018
    Inventors: Masamichi Ando, Kazuhiko Yamano
  • Patent number: 9897506
    Abstract: Certain implementations of the disclosed technology may include systems and methods for dynamic pressure testing of transducers in communication with a liquid. A method is provided that can include dynamically pressurizing a liquid in a cavity associated with a housing. While dynamically pressurizing the liquid, the method includes simultaneously measuring: a change in volume of the liquid; a test frequency response, by a test transducer in communication with the liquid; and a reference frequency response, by a reference transducer in communication with the liquid. The method may further determine a normalized frequency response of the test transducer, based at least in part on the test frequency response and the reference frequency response. The method may further provide an indication of the normalized frequency response of the test transducer and an indication of the bulk modulus of the liquid.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: February 20, 2018
    Assignee: Kulite Semiconductor Products, Inc.
    Inventor: Adam Hurst
  • Patent number: 9834316
    Abstract: A portable, externally mounted device for aircraft used to provide user selectable readings of airspeed, pressure, temperature, orientation, heading, acceleration, and angular rate is disclosed. The device is self-contained and wireless and is portable from aircraft to aircraft. The device is externally mounted on the aircraft.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: December 5, 2017
    Inventors: Alexander Rolinski, Brandon Marsell
  • Patent number: 9797796
    Abstract: A hydraulic measuring mechanism for registering pressure differences, comprising a measuring mechanism platform having a process connection surface and two pressure input openings, in which, in each case, a pressure tube is arranged, which protrudes from a rear side of the measuring mechanism platform to support a pressure difference measuring cell, wherein the pressure tubes are connected pressure-tightly with the measuring mechanism platform from the process connection surface.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: October 24, 2017
    Assignee: Endress + Hauser GmbH + Co. KG
    Inventors: Benjamin Lemke, Michael Noack, Anh Tuan Tham, Rafael Teipen
  • Patent number: 9735339
    Abstract: A piezoelectric device comprises at least one element comprising at least one sheet of piezoelectric material. The element is mounted on a circuit board comprising at least one conductive layer having at least one opening. The element is located on the opening and supported by edges of the opening in such a manner that the opening extends laterally beyond the area of the sheet of piezoelectric material. The element is sandwiched between an overlay and the circuit board in such a manner that vibrations of the sheet of piezoelectric material are sufficient to cause vibration of the overlay.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: August 15, 2017
    Assignee: AITO B.V.
    Inventors: Jockum Lönnberg, Vesa Korhonen, Turo Keski-Jaskari
  • Patent number: 9709622
    Abstract: A thermal control unit (TCU) for controlling temperature of a device under test (DUT) includes a sealed evaporation chamber disposed therein, the evaporation chamber configured with a refrigerant inlet and a refrigerant outlet; and at least one surface for thermal engagement of the device under test and configured to conduct heat to the evaporation chamber. A test system and a computer program product are disclosed.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 18, 2017
    Assignee: Sensata Technologies, Inc.
    Inventors: Christopher A. Lopez, Thomas F. Lemczyk, Rick A. Davis
  • Patent number: 9691966
    Abstract: An apparatus assembly of a medical apparatus is equipped for collision detection by attaching a polyvinylidene fluoride (PVDF) cover assembly to at least one rigid surface of the apparatus assembly, with a resilient material between the PVDF cover assembly and the rigid surface. The PVDF assembly is composed of a PVDF foil with electrically conductive layers on opposite sides thereof. A protective layer covers the PVDF cover assembly. Electrical leads are connected to the conductive layers, and the piezoelectric property of the PVDF foil produces a voltage across the leads when a force associated with a collision acts on the PVDF foil. A detection circuit detects this voltage and initiates an appropriate response to the collision.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: June 27, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Sattler, Stefan Schuster
  • Patent number: 9627602
    Abstract: A driving circuit is configured to apply a drive signal to a first terminal of a drive piezoelectric actuator having a second terminal coupled to ground. In response, the drive piezoelectric actuator controls the position of a head in a head gimbal assembly. A reference piezoelectric actuator, characterized by dimensional and electro-mechanical properties substantially matching those of the drive piezoelectric actuator, is included in the driving circuit. The driving circuit controls the reference piezoelectric actuator so that a voltage is produced across the terminals of the reference piezoelectric actuator, wherein that voltage is proportional to the charge stored in the reference piezoelectric element. That voltage is transmitted through a buffer amplifier to the drive piezoelectric actuator where it creates in it a charge equal to the charge in the reference piezoelectric actuator.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: April 18, 2017
    Assignee: Guzik Technical Enterprises
    Inventor: Nahum Guzik
  • Patent number: 9587612
    Abstract: An in-cylinder pressure detecting device of a direct injection type internal combustion engine is provided in which a ring-shaped pressure detection element (34) surrounding a fuel injection hole (33b) is provided in the vicinity of an extremity of an injector (20) that injects fuel into a combustion chamber. Since the pressure detection element is provided on the injector, not only is it unnecessary to change the shape or structure of the cylinder head or the combustion chamber in order to provide the pressure detection element, but it is also possible to cool the pressure detection element (34) by fuel passing through the inside of the injector to thus enhance the precision of pressure detection and the durability.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: March 7, 2017
    Inventors: Shusuke Akazaki, Yuji Yamamoto, Toshitaka Hachiro, Gaku Sato
  • Patent number: 9546918
    Abstract: A sensor element includes, when three axes orthogonal to one another are set to be an A-axis, a B-axis, and a C-axis, first piezoelectric plate that is configured to have an X cut quartz crystal plate and outputs a charge in response to an external force along the A-axis direction, second piezoelectric plate that is configured to have a Y cut quartz crystal plate, is stacked in the A-axis direction with the first piezoelectric plate, and outputs a charge in response to the external force in the B-axis direction, and third piezoelectric plate that is configured to have a Y cut quartz crystal plate, is stacked in the A-axis direction so as to interpose the second piezoelectric plate between the first piezoelectric plate and the third piezoelectric plate and be arranged to turn around the A-axis, and outputs a charge in response to the external force in the C-axis direction.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: January 17, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Nobuyuki Mizushima, Toshiyuki Kamiya, Hiroki Kawai
  • Patent number: 9528502
    Abstract: An assembly converting thermal energy into electrical energy including: at least one temperature sensitive bimetallic strip arranged in a space delimited by a hot source and a cold source facing each other, the bimetallic strip extending along a longitudinal axis; at least one suspended element fixed in movement to the sensitive element and extending laterally from the sensitive element and including a free end; and at least one piezoelectric element suspended from a part fixed relative to the sensitive element and vibrated by the suspended element such that it is vibrated when the bimetallic strip changes configuration and the suspended element comes into contact with the piezoelectric element, the piezoelectric element being located outside the space defined between the bimetallic strip and the hot source and outside the space between the bimetallic strip and the cold source.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: December 27, 2016
    Assignees: Commissariat a l'energie atomique et aux energies alternatives, STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Guillaume Savelli, Philippe Coronel, Stéphane Monfray, Thomas Skotnicki
  • Patent number: 9528896
    Abstract: A cylindrical quartz crystal transducer that exhibits a low probability of twinning, and uses a combination of resonator signal inputs at the B-mode and C-mode frequencies to calculate resonator temperature. Crystallographic orientations are disclosed where combinations of B-mode and C-mode resonant frequencies exist that are sufficiently independent of pressure to enable accurate calculation of temperature under transient conditions. Such a transducer is usable at higher pressures and temperatures than conventional quartz pressure transducers. Furthermore, because the structure allows a choice of crystallographic orientation, other characteristics of the transducer, such as increased pressure sensitivity and activity dip-free operation, may be optimized by varying crystallographic orientation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 27, 2016
    Assignee: Quartzdyne, Inc.
    Inventors: Errol P. EerNisse, Milton Watts
  • Patent number: 9490420
    Abstract: Thermally stable piezoelectric polymer foams (ferroelectrets) with high piezoelectric activity for sensing and actuation. The invention further includes a method of fabricating such foams in an environmentally friendly manner.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: November 8, 2016
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Changchun Zeng, Yan Li
  • Patent number: 9476293
    Abstract: Methods and related systems are described relating to a sealed acoustic transducer assembly for use in a wellbore is provided. A tool body is deployed in the wellbore, having a groove and a sealed acoustic transducer assembly removeably mounted therein. The transducer assembly includes an acoustic transducer element, and an elongated fluid filled sealed container housing the transducer element. The container includes flexible portions along the length of the container which allows for volume changes when exposed to changes in external pressure and/or temperature. Acoustic measurements downhole are made using the transducer element.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: October 25, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Hiroshi Nakajima, Toshihiro Kinoshita, Takeo Fujihara, Yasuo Kanaya
  • Patent number: 9476781
    Abstract: A deposition device includes a deposition container with an intermediate plate, a sensor mat positioned on the deposition container, where the sensor mat includes at least two locating recesses for positioning the sensor mat within an area of a maximum permissible movement, and at least one detection sublayer. The intermediate plate includes at least one passthrough opening to allow an electrical connection device connected to the sensor mat to pass through, so that the sensor mat can be connected to a circuit board disposed in an electronics container space. The intermediate plate further includes locating pins arranged on the intermediate plate and protruding into a locating recess. The cross section of the locating pins is such that over the entire length thereof the locating recess permits local movability of the sensor mat in all directions in the planar extension thereof, within the maximum permissible range of movement.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: October 25, 2016
    Inventor: Klaus Wittig
  • Patent number: 9455397
    Abstract: A stackable piezoelectric actuator component (100) comprises a stack (10) of piezoelectric layers (11) and electrode layers (12) arranged therebetween, a voltage supply device (20) arranged outside the stack (10) and serving for making electrical contact with the electrode layers, a contact connection (30) for applying a voltage to the voltage supply device (20) and a further contact connection (40), which is electrically coupled to the voltage supply device (20). The contact connection (30) and the further contact connection (40) are designed complementarily with respect to one another in such a way that a further stackable piezoelectric actuator component (200), comprising at least a contact connection or a further contact connection (30, 40), can be electrically coupled to the actuator component (100).
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: September 27, 2016
    Assignee: EPCOS AG
    Inventor: Reinhard Gabl
  • Patent number: 9447771
    Abstract: A system and method for a piezoelectric-based vertical axis wind turbine (VAWT) are disclosed. The piezoelectric-based VAWT may generate electricity in response to a deformation (e.g., a stretching or bending) of piezoelectric material. For example, the piezoelectric material may be included on or within a wind turbine blade. The wind turbine blade may be struck by an object or may hit an object. Such an action may cause the wind turbine blade to vibrate and subsequently cause the piezoelectric material to deform and generate electricity.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: September 20, 2016
    Inventors: Vinod Shekher, Rahul Shekher
  • Patent number: 9435770
    Abstract: A method of making a flexible delay line for a transducer, a flexible delay line, and a transducer are provided. The method includes providing a mold having a desired geometry, applying a flexible material to the mold, curing the flexible material in the mold, and removing the cured material from the mold. The cured material forms a flexible delay line having a geometry conforming to a face of the ultrasonic transducer. The flexible delay line for a transducer includes a flexible material having an aperture shaped to receive a face of the transducer. The flexible delay line is operable to conform to a flat or an irregular surface.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: September 6, 2016
    Assignee: General Electric Company
    Inventors: Gary Austin Lamberton, Michael Rowe
  • Patent number: 9419544
    Abstract: Provided is an energy harvesting device having a self-powered touch sensor so that the energy harvesting device is capable of sensing pressure due to an external touch without using external power and harvesting and storing energy generated in response to the touch pressure. The energy harvesting device includes first and second electrodes facing each other, an energy generation layer disposed on the first electrode, and an elastic layer disposed on the second electrode layer, the elastic layer facing the energy generation layer and being configured to be elastically deformed according to pressure applied to the elastic layer. The energy generation layer is configured to generate energy according to the pressure applied to the energy generation layer.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: August 16, 2016
    Inventors: Hyun-jin Kim, Young-jun Park, Steve Park
  • Patent number: 9367100
    Abstract: A portable electronic device may include submersion detection circuitry for detecting when the electronic device is submerged in water or other liquids. The submersion detection circuitry may include a barometric pressure sensor that gathers air pressure information. Control circuitry in the electronic device may monitor the air pressure sensor for sharp changes in air pressure indicating that the electronic device has been dropped or submerged in water. Various actions may be taken in response to determining that the electronic device is in water. If the electronic device is not intended to operate underwater, a power management unit may automatically power down electrical components in the electronic device in response to determining that the electronic device is in water. If the electronic device is intended to operate underwater, control circuitry may determine and track a water depth level at which the electronic device is submerged based on the air pressure information.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: June 14, 2016
    Assignee: Apple Inc.
    Inventor: Shameek P. Ganguly