Specified Sensor Structure Patents (Class 73/774)
  • Patent number: 10926725
    Abstract: A system comprising a sensor, a protective enclosure configured to enclose the sensor and a mounting pad configured to be attached to a predetermined surface of a predetermined vehicle, the mounting pad having a predetermined contact area as a function of a weight of the sensor and the protective enclosure. The sensor and the protective enclosure are attached to the mounting pad, and the mounting pad is attached to the predetermined surface of the vehicle using an adhesive layer that extends over the predetermined contact area that is selected to provide a maximum weight support that is correlated to a weight of the sensor and the protective enclosure.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: February 23, 2021
    Assignee: STOCKED ROBOTICS, INC.
    Inventors: Saurav Agarwal, Jacob Corder Currence, Zoltan C. Bardos
  • Patent number: 10850182
    Abstract: An embodiment of the present disclosure provides a resistance strain sheet, a sensing assembly, a force sensor and a skateboard, wherein the resistance strain sheet includes: a strain sheet body; and a resistance wire, the strain sheet body having an symmetry axis, a plurality of resistance wires being provided, and the plurality of resistance wires being divided into two groups, the two groups of resistance wires are electrically connected to each other and symmetrically arranged on both sides of the symmetry axis, and each of the plurality of resistance wire being arranged at an acute angle with the symmetry axis.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: December 1, 2020
    Assignee: Ninebot (Beijing) Tech Co., Ltd.
    Inventors: Lai Ting Kwan, Yubin Yuan, Zhongyuan Chen
  • Patent number: 10837846
    Abstract: A method for installing a sensor on a component is provided. The method includes attaching the sensor to a surface of the component. The method includes covering the sensor using a metal wire. The method includes applying a multilayer coating on the metal wire. Applying the multilayer coating includes applying a first coating. The first coating is capable of being machined. Applying the multilayer coating includes machining the first coating and applying a second coating over the first coating. The second coating is a ceramic oxide and the second coating is configured to serve as a thermal and dielectric barrier. Applying the multilayer coating also includes applying a third coating over the second coating. The third coating is configured to provide erosion resistance.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: November 17, 2020
    Assignee: Caterpillar Inc.
    Inventors: Daniel Joseph Sordelet, Arun Rajendran, John Allan White
  • Patent number: 10724910
    Abstract: Systems, apparatuses, and methods are disclosed for sensing a force applied by an external source. An example system comprises a substrate comprising a plurality of electrical contact pads disposed on a first surface of the substrate. The system further comprises a force sensing device disposed on a second surface of the substrate, the second surface opposite the first surface. The system further comprises a housing disposed on the second surface of the substrate. The housing defines an aperture that provides a common coupling interface. The common coupling interface provides a common path for the force to be transmitted to the force sensing device either through a first coupling or a second coupling different from the first coupling.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: July 28, 2020
    Assignee: Honeywell International Inc.
    Inventors: Sudheer Beligere Sreeramu, Aditya Vishnu Yellamraju, Manjunatha Hm, Richard Wade
  • Patent number: 10591368
    Abstract: A transparent force sensor for detecting an applied force on a surface of a device. The transparent force sensor includes a transparent force-sensitive film having an array of strain-relief features oriented along a first direction. The transparent force-sensitive film is formed from a transparent piezoelectric material that exhibits a substantially reduced net charge when strained along a primary direction. The force sensor also includes a display element disposed on one side of the transparent force-sensitive film.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: March 17, 2020
    Assignee: Apple Inc.
    Inventors: James E. Pedder, John Stephen Smith
  • Patent number: 10557760
    Abstract: A strain gauge includes: a substrate; a dielectric layer on the substrate; a thin film electrical circuit on the dielectric layer and having input/output terminals; another layer disposed on the electrical circuit; the dielectric layer forming a first seal on one side of the electrical circuit, the another layer forming a second seal on a second side of the electrical circuit, the first and second seals having structure such that: in a first instance prior to exposure of the strain gauge to an autoclave cycle, the electrical circuit is productive of a first output voltage in response to a first input voltage; and in a second instance subsequent to exposure of the strain gauge to at least 10 autoclave cycles, the electrical circuit is productive of a second output voltage in response to a second input voltage, the first and second input voltages being equal, and the first and second output voltages being equal within a 15% shift in zero offset.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: February 11, 2020
    Assignee: STRAIN MEASUREMENT DEVICES, INC.
    Inventor: Daniel E. Shapiro
  • Patent number: 10494299
    Abstract: An electrically and thermally conductive polymer concrete (made of a polymer and aggregate particles without cement) comprising non-functionalized nanoparticles (e.g. non-functionalized multi-walled carbon nanotubes (NF-MWCNTs), non-functionalized carbon nanofibers, non-functionalized nanoalumina) dispersed therein and methods of making same.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: December 3, 2019
    Assignee: STC.UNM
    Inventors: Mahmoud Reda Taha, Usma Farid Kandil, Ala Eddin Douba, Mehmet Emiroglu
  • Patent number: 10422708
    Abstract: Disclosed is an inch pounds per turn (IPPT) computing device that provides for the calculation of IPPT of a garage door spring coil. The IPPT computing device computes the IPPT required of the garage door spring coil by measuring the strain induced on a calibrated shaft used to lift the weight of the garage door. The IPPT computing device is inserted into the winding end cone of a garage door torsion spring assembly, and the door is slightly lifted off of the floor. This measurement is done by disabling the cable ends spring end so the counterbalance force is removed from the door. The IPPT tool measures the torque (strain on the calibrated rod) needed to lift the door and inputs the torque value automatically into an IPPT calculator mounted on the tool. When other door parameters are entered into the calculator, the IPPT is calculated.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: September 24, 2019
    Inventor: Thomas A. Mello, II
  • Patent number: 10371588
    Abstract: Strain gages for use with ceramic matrix composites (CMCs), and methods of manufacture therefore. The strain gages use the CMC as a strain element. For semiconductor CMCs, for example SiC fiber-reinforced SiC CMC, their large gage factor enables high sensitivity, high accuracy strain measurements at high temperatures. By using a single elemental metal such as platinum, or another high temperature conductive material, the strain gages can operate at temperatures over 1600° C. The conductive material is preferably deposited on a dielectric or insulating layer, and contacts the CMC substrate through openings in that layer. The materials can be deposited using thin film vacuum techniques or thick film techniques such as pastes or inks. The strain gages can be configured to measure only the mechanical strain independent of the apparent or thermal strain. The strain gages can be incorporated into a bulk CMC structure during layup, and can optionally measure the strain of only desired fiber weave orientations.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 6, 2019
    Assignee: Rhode Island Council on Postsecondary Education
    Inventors: Otto Gregory, John T. Rhoat, Kevin Rivera
  • Patent number: 10214364
    Abstract: A working machine for conducting a roadworking operation includes a conveyor that is adapted to move roadworking material as a part of the roadworking operation. The working machine also includes a sensor which is adapted to determine if a condition exists that is indicative of the conveyor's operating under a load, and a controller which includes at least one timer. The controller is adapted to receive input information including a predetermined operating run-time for a wear part that is associated with the conveyor. The controller is also adapted to receive a signal from the sensor that a condition exists which is indicative of the conveyor's operating under load. The timer of the controller is adapted to use the signal received from the sensor to measure a period of time during which the conveyor is operating under load, and the controller is adapted to compare the measured period of time that the conveyor is operating under load with the predetermined operating run-time for the wear part.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: February 26, 2019
    Assignee: Roadtec, Inc.
    Inventor: Kyle E. Grathwol
  • Patent number: 9746356
    Abstract: According to embodiments of the present invention, a sensor for determining a flow parameter of a fluid is provided. The sensor includes a polymer membrane, an elongate microstructure extending from the polymer membrane, and a hydrogel coupled to at least a portion of the elongate microstructure, wherein the hydrogel and the elongate microstructure are arranged to cooperate to cause a displacement of the polymer membrane in response to a fluid flowing and interacting with the sensor, and wherein the sensor is configured to provide a measurement indicative of a flow parameter of the fluid based on the displacement of the polymer membrane. According to further embodiments of the present invention, a method for forming a sensor and a method of controlling a sensor are also provided.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: August 29, 2017
    Assignees: NANYANG TECHNOLOGICAL UNIVERSITY, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Ajay Giri Prakash Kottapalli, Jianmin Miao, Mohsen Asadniaye Fard Jahromi, Michael Triantafyllou
  • Patent number: 9731420
    Abstract: Described are techniques for storing and retrieving items using a robotic manipulator. Images depicting a human interacting with an item, sensor data from sensors instrumenting the human or item, data regarding physical characteristics of the item, and constraint data relating to the robotic manipulator or the item may be used to generate one or more configurations for the robotic manipulator. The configurations may include points of contact and force vectors for contacting the item using the robotic manipulator.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: August 15, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Pradeep Krishna Yarlagadda, Cédric Philippe Charles Jean Ghislain Archambeau, James Christopher Curlander, Michael Donoser, Ralf Herbrich, Barry James O'Brien, Marshall Friend Tappen
  • Patent number: 9702771
    Abstract: A sensor able to detect shearing forces as well as simple pressure includes a substrate, a support secured to the substrate, and shear force sensing unit located at an exterior surface of the support facing away from the substrate. The support can be elastically deformed in proportion to the shearing force or pressure. The shear force sensing unit includes first piezoelectric films on outer opposing shoulders of each support, the first piezoelectric film being elastically deformed with the support and outputting a signal accordingly. The magnitude of simple pressure is recorded by similar deformation of a second piezoelectric film entirely covering its support.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: July 11, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Jen-Tsorng Chang
  • Patent number: 9442030
    Abstract: A pedal operation amount detecting device that is provided in an operating pedal apparatus including a transmitting member having a pedal arm of an operating pedal that is arranged so as to be pivotable about a support axis and that is depressed, and an output member to which a depression force is transmitted from the transmitting member and to which a reaction force corresponding to the depression force is applied, the pedal operation amount detecting device including a sensor member that is arranged on a load transmission path at a position offset from the transmitting member in a direction parallel to the support axis and that is deformed by the depression force and the reaction force, and the pedal operation amount detecting device electrically detecting a deformation of the sensor member.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: September 13, 2016
    Assignees: TOYODA IRON WORKS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, MINEBEA CO., LTD.
    Inventors: Noboru Fujiwara, Hiroshi Isono, Hirofumi Otsuka
  • Patent number: 9400222
    Abstract: A pedal operation amount detecting device that is provided in an operating pedal apparatus including a transmitting member having a pedal arm of an operating pedal that is arranged so as to be pivotable about a support axis and that is depressed, and an output member to which a depression force is transmitted from the transmitting member and to which a reaction force corresponding to the depression force is applied, the pedal operation amount detecting device including a sensor member that is arranged on a load transmission path at a position offset from the transmitting member in a direction parallel to the support axis and that is deformed by the depression force and the reaction force, and the pedal operation amount detecting device electrically detecting a deformation of the sensor member.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: July 26, 2016
    Assignees: TOYODA IRON WORKS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, MINEBEA CO., LTD.
    Inventors: Noboru Fujiwara, Hiroshi Isono, Hirofumi Otsuka
  • Patent number: 9329705
    Abstract: In one embodiment, a first device includes an electrically conductive element that is configured to capacitively couple to an electrode of a second device emitting a first electrical signal. The electrically conductive element is further configured to communicate to a circuit of the first device a second electrical signal induced in the electrically conductive element by the first electrical signal and through the capacitive coupling. The circuit of the first device is coupled to the electrically conductive element and is configured to receive the second electrical signal. The circuit is further configured to produce an electrical response to the second electrical signal, where the electrical response of the circuit is based at least in part on one or more characteristics of the first electrical signal.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: May 3, 2016
    Assignee: Atmel Corporation
    Inventor: Richard Paul Collins
  • Patent number: 9272134
    Abstract: A pacemaker includes an electrode line having a lead and an electrode. The electrode includes a carbon nanotube composite structure having a matrix and a carbon nanotube structure located in the matrix. The matrix comprises a first surface and a second surface substantially perpendicular to the first surface. The carbon nanotube structure includes a first end electrically connect to the lead. The carbon nanotube structure is substantially parallel to the second surface of the matrix. A distance between the carbon nanotube structure and the second surface of the matrix is less than 10 micrometers.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 1, 2016
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Quan Wang, Li Fan, Wen-Mei Zhao, Li Qian, Chen Feng, Liang Liu
  • Patent number: 9016134
    Abstract: A load cell extending in an axial direction having an outer surface includes a groove in the outer surface having a first flat wall, and a second flat wall; and a principal strain sensor positioned on the first flat wall to measure tension and compression in the axial direction.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: April 28, 2015
    Assignee: Goodrich Corporation
    Inventor: Thomas Freshour
  • Patent number: 9010193
    Abstract: The present invention relates to an inertial rotary movement microsensor for detecting a rotational movement around what is referred to as an axis of rotation (X), provided with a part that is movable relative to a fixed part, the movable part comprising an excitation mass configured to undergo an oscillating movement in an excitation direction (Z) by an exciter so as to generate a Coriolis force induced by the rotational movement, a detection mass kinematically connected to the excitation mass by a linkage configured to transmit the Coriolis force at least partly without transmitting the oscillating movement around the excitation axis at least partly, a detector configured to measure the Coriolis force transmitted to the detection mass, characterized in that the detector is provided with at least one strain gauge suspended between the detection mass and an anchoring part integral with the fixed part. Application to the technologies known as MEMS.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: April 21, 2015
    Assignee: Commissariat a l' energie Atomique et aux energies Alternatives
    Inventors: Arnaud Walther, Philippe Robert
  • Patent number: 9010194
    Abstract: A pin and circuit board assembly includes at least three pins (24?, 24?). Each pin includes a first end (35) and a second end (37). All of the first ends of the pins are arranged on a common plane. The second ends of at least two of the pins are disposed on the common plane and a second end of at least one of the pins, other than the two pins, are disposed on a second plane that is offset from the common plane. The second end of each pin is spaced apart from a second end of another pin substantially at an angle of 360/N, where N is the total number of pins. A printed circuit board (22?) includes at least three pin holes (28?, 28?), each arranged to receive a second end of an associated pin in a press-fit arrangement. The assembly avoids tilting of the PCB upon inserting the pins.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 21, 2015
    Assignee: Continental Automotive Systems, Inc
    Inventor: Jen-Huang Albert Chiou
  • Publication number: 20150101417
    Abstract: In one aspect, wireless strain gauges are described herein. In some embodiments, a wireless strain gauge comprises a radio frequency identification (RFID) tag and a nano-composite backplane coupled to the RFID tag, wherein the resonant frequency of the RFID tag antenna demonstrates an exponential dependence or substantially exponential dependence on the strain sensed by the strain gauge.
    Type: Application
    Filed: February 28, 2013
    Publication date: April 16, 2015
    Applicant: WAKE FOREST UNIVERSITY
    Inventors: David Loren Carroll, Tadhg O'Gara, Thomas Smith
  • Patent number: 8984954
    Abstract: In one general aspect, an apparatus comprises a material including a non-layered mixture of an elastomeric polymer with a plurality of voids; and a plurality of conductive fillers disposed in the elastomeric polymer. The apparatus may produce an electrical response to deformation and, thus, function as a strain gauge. The conductive fillers may include conductive nanoparticles and/or conductive stabilizers. In another general aspect, a method of measuring compression strain includes detecting, along a first axis, an electrical response generated in response to an impact to a uniform composite material that includes conductive fillers and voids disposed throughout an elastomeric polymer, and determining a deformation of the impact based on the electrical response. The impact may be along a second axis different from the first axis.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: March 24, 2015
    Assignee: Brigham Young University
    Inventors: Aaron Jake Merrell, David T. Fullwood, Anton E. Bowden, Taylor D. Remington
  • Publication number: 20150040677
    Abstract: Embodiments provide a circuit, a method, and a computer program configured to detect mechanical stress and a circuit, a method, and a computer program configured to monitor safety of a system. The detection circuit is configured to detect mechanical stress of a semiconductor circuit. The detection circuit comprises a stress monitor module configured to monitor mechanical stress of the semiconductor circuit and to provide monitor information related to a mechanical stress level of the semiconductor circuit. The detection circuit further comprises an activation signal generator configured to generate an activation signal comprising activation information related to the mechanical stress level of the semiconductor circuit if the monitor information indicates that a mechanical stress level criterion is fulfilled by the semiconductor circuit.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 12, 2015
    Inventor: Dirk Hammerschmidt
  • Patent number: 8950266
    Abstract: A method of manufacturing a fluidic structure is disclosed. A cavity that defines a shape of an element of the fluidic structure within a material is formed. The cavity is filled with liquid metal. The cavity is sealed. The fluidic structure behaves as an antenna. A fluidic antenna includes a material that defines a shape of the fluidic antenna by a cavity filled with liquid metal formed within the material, where the material further defines at least one mechanical property of the fluidic antenna.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: February 10, 2015
    Assignee: North Carolina State University
    Inventors: Michael David Dickey, Gianluca Lazzi, Ju-Hee So, Jacob Thelen, Amit Qusba, Gerard James Hayes
  • Patent number: 8943897
    Abstract: The present disclosure relates to an element for sensing strain, stress or force. The sensing element comprises a substrate, a pair of electrodes on the substrate, and a network of carbon nanotubes for sensing the strain, stress or force within a structure. The network of carbon nanotubes defines at least in part an electrical path between the electrodes of the pair, and the electrical path has a resistance which is altered by the sensed strain, stress or force. Combining a plurality of sensing elements coupled to a common substrate forms a sensing system.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: February 3, 2015
    Assignee: Societe de Commercialisation des Produits de la Recherche Appliquee—Socpra-Sciences et Genie S.E.C.
    Inventors: Jacques Beauvais, Patrick Boissy, Jonathan Genest, Annick Sauve
  • Publication number: 20150007665
    Abstract: A sensor device comprises an array of spaced apart sensor elements disposed in a pattern on a substrate. Each sensor element is connected electrically so that a physical variable measured by each sensor element independently can be recorded and/or displayed by an external instrument. The sensing device may be a temperature sensing device, in which case the sensor elements are temperature sensing elements such as negative temperature coefficient (NTC) thermistors. Alternatively the sensing device may be a strain or pressure sensing device, or an optical imaging device, in which case the sensor elements include piezoresistors or photoresistors.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 8, 2015
    Applicant: PST Sensors (Proprietary) Limited
    Inventors: David Thomas Britton, Margit Harting
  • Patent number: 8925388
    Abstract: A pressure measuring transducer includes a pressure measuring cell; a measuring cell housing having an annular axial abutment surface, which surrounds an opening; a sealing ring; and a ring of angular cross section for positioning the pressure measuring cell and the sealing ring in the measuring cell chamber. The ring of angular cross section includes at least a first component of a form-retaining material and at least a second component of an elastic material, wherein the at least one form-retaining component forms the radial shoulder and extends in the axial direction into the annular gap, and the second component is connected with the first component and extends in the annular gap at least sectionally radially between the lateral surface of the pressure measuring cell and the wall of the measuring cell chamber.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: January 6, 2015
    Assignee: Endress + Hauser GmbH + Co. KG
    Inventor: Michael Hugel
  • Publication number: 20150000418
    Abstract: A variable resistance flexure sensor, and a system and method of controlling an appliance using a variable resistance flexure sensor are provided. The sensor can include a substrate having a flexible portion and a non-flexible portion. A plurality of electrically resistive elements, such as a first resistive element and a second resistive element, can be disposed on the substrate where at least one resistive element is exclusively within the non-flexible portion of the substrate and at least one resistive element is within the flexible portion of the substrate. The resistive element within the non-flexible portion of the substrate can act as a reference resistance for the flexure sensor and can be used as, or as part of, a biasing network for the electrically resistive element within the flexible portion of the substrate. The flexure sensor can be used within an appliance to detect various conditions such as temperature, moisture, etc.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventor: James Carter Bach
  • Publication number: 20140352448
    Abstract: A PEFS (Piezoelectric Finger Sensor) acts as an “electronic finger” capable of accurately and non-destructively measuring both the Young's compression modulus and shear modulus of tissues with gentle touches to the surface. The PEFS measures both the Young's compression modulus and shear modulus variations in tissue generating a less than one-millimeter spatial resolution up to a depth of several centimeters. This offers great potential for in-vivo early detection of diseases. A portable hand-held device is also disclosed. The PEF offers superior sensitivity.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Applicant: DREXEL UNIVERSITY
    Inventors: WAN Y. SHIH, WEI-HENG SHIH, ANNA MARKIDOU, STEVEN T. SZWECZYK, HAKKI YEGINGIL
  • Publication number: 20140352447
    Abstract: A double-side-coated surface stress sensor includes a sensing membrane structure portion where at least two ends opposite each other are fixed on a mounting portion; a receptor layer that coats both surfaces of the sensing membrane structure portion; and an element detecting a stress, which is provided in the vicinity of at least one of the fixed two ends, opposite each other, of the sensing membrane structure portion or at least one of the fixed two ends, opposite each other, of the mounting portion, in which in a detection output is obtained from the element based on the stress which is applied onto the receptor layer coating the both surfaces of the sensing membrane structure portion. Accordingly, it is possible to provide a double-side-coated surface stress sensor which coats both surfaces of the sensing membrane structure portion by the receptor layer, thereby obtaining a sufficiently large detection output.
    Type: Application
    Filed: April 17, 2013
    Publication date: December 4, 2014
    Applicant: National Institute for Materials Science
    Inventors: Genki Yoshikawa, Masakazu Aono, Tomonobu Nakayama, Frederic Loizeau, Terunobu Akiyama, Sebastian Gautsch, Peter Vettiger
  • Patent number: 8890516
    Abstract: A tension measurement apparatus that can carry out tension measurement of superior reproducibility with high sensitivity even for a target object of a stranded wire structure is provided. A cylindrical magnetizer arranged to surround a portion of a long magnetic element that becomes the target object of measurement direct-current magnetizes the magnetic element in the longitudinal direction up to the range of approach to saturation magnetization. Using a Hall element (magnetic sensor) arranged in proximity to the magnetic element at the central region in the longitudinal direction of the magnetic domain, the spatial magnetic field intensity in the neighborhood of the surface of the magnetic element, greatly differing corresponding to stress variation, is detected. Based on the detection value, the tension acting on the magnetic element is measured. Accordingly, a measurement result of superior reproducibility with high sensitivity is obtained.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: November 18, 2014
    Assignees: Sumitomo (SEI) Steel Wire Corp., Tokyo Rope Manufacturing Co., Ltd.
    Inventors: Kazuhiko Tsukada, Ippei Furukawa, Toshiro Kido, Masashi Oikawa
  • Patent number: 8890649
    Abstract: Provided are a bending sensor that is less dependent on an input speed of a strain and in which a response delay is unlikely to occur, and a deformed shape measurement method using the bending sensor. The bending sensor is configured to include a base material; a sensor body arranged on a surface of the base material and containing a matrix resin and conductive filler particles filled in the matrix resin at a filling rate of 30% by volume or more, and in which three-dimensional conductive paths are formed by contact among the conductive filler particles, and electrical resistance increases as an deformation amount increases; an elastically deformable cover film arranged so as to cover the sensor body; and a plurality of electrodes connected to the sensor body and capable of outputting electrical resistances. In the sensor body, cracks are formed in advance in such a direction that the conductive paths are cut off during a bending deformation.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: November 18, 2014
    Assignee: Tokai Rubber Industries, Ltd
    Inventors: Yuuki Saitou, Masaru Murayama, Tomonori Hayakawa, Koichi Hasegawa, Tetsuyoshi Shibata
  • Patent number: 8881597
    Abstract: A measuring device is described which has a metal body deformable in accordance with a value to be measured. A sensor element having a metal carrier and ohmic resistors formed thereon in metal thin-film technique is connected to the metal body by welding and generates a signal adapted to be electrically evaluated which corresponds to the deformation of the metal body. The weld for connecting the metal body and the sensor element completely encloses the metal carrier at its circumference. The metal body has, at the welded connection with the metal carrier, a material thickness t which is completely penetrated by the weld. The value to be measured by the measuring device comprises force, pressure, temperature, torque or combinations thereof.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 11, 2014
    Assignee: Tecsis GmbH
    Inventors: Oliver Jost, Marko Appel, Joachim Hose Von Wolframsdorff
  • Publication number: 20140326072
    Abstract: Embodiments of the present disclosure relate to methods, devices, and systems for determining occupancy of a user. One method to determine occupancy of a user includes sensing a change in resistance of a sensor element of an occupancy sensor, correlating the change in resistance to a force transmitted to the occupancy sensor, and determining an occupancy status of a user based on the force transmitted.
    Type: Application
    Filed: July 16, 2014
    Publication date: November 6, 2014
    Inventors: David T. Anderson, Brian J. Bischoff, John L. Ryan
  • Publication number: 20140326071
    Abstract: The subject matter disclosed in this specification pertains to a method for detecting cells with elastic cell membranes. A plurality of cells are fixed to an impedimetric transducer and osmotic stress is applied. Those cells with elastic membranes, including cancer cells, undergo a volume change which is detected by the impedimetric transducer.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 6, 2014
    Applicant: Research Foundation of the City University of New York
    Inventor: Research Foundation of the City University of New York
  • Patent number: 8875584
    Abstract: A pressure-sensitive conductive rubber for reference is provided inside a housing in such a state that preload is imposed thereon. A pressure-sensitive conductive rubber for detection is also provided inside the housing in such a state that preload is imposed thereon and an external load acts thereon. A load detecting circuit applies voltage to the pressure-sensitive conductive rubbers to determine the external load based on a difference between a detected value corresponding to electric current flowing through the pressure-sensitive conductive rubber for reference and a detected value corresponding to electric current flowing through the pressure-sensitive conductive rubber for detection.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: November 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenta Sasajima
  • Publication number: 20140318261
    Abstract: An unshielded strain gage sensor cable that is tightly sealed within an injection mold to prevent electromagnetic interference from interfering with the sensor signal. The use of the unshielded cable significantly reduces the cost and allows for quick installation and a mobility that does not exist with shielded cables.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Inventor: Michael Raymond Groleau
  • Patent number: 8872771
    Abstract: A touch sensing device having conductive nodes is disclosed. The device can include a first structure having one or more conductive electrodes disposed on a surface opposite the structure's touchable surface and a second structure having one or more conductive nodes disposed on a surface. The two surfaces can be placed with the conductive electrodes and conductive nodes facing each other in close proximity so that the electrodes and the nodes can form capacitive elements for sensing a touch on the touchable surface. Separately disposing the conductive nodes from the touchable surface structure can make the touch sensing device thin. An example touch sensing device can be a click wheel.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: October 28, 2014
    Assignee: Apple Inc.
    Inventors: Steven Porter Hotelling, Stephen Paul Zadesky
  • Patent number: 8850897
    Abstract: A sensor and method of sensing dimensional changes, stress changes or pressure changes on a substrate uses a sensor in the following manner. Temporarily and non-destructively attach a piezoresistant sensor to a surface. The piezoresistant sensor has an electrically conductive elastic body having at least one pair of opposed ends, and the elastic body contains conductive nanotubes homogeneously distributed therein. The elastic body has at least one surface with two opposed ends and electrodes at each of the opposed ends. A current is passed through the elastic body between the two electrodes. The current passing through the elastic body is sensed (e.g., a voltmeter). A mechanical step is performed with or on the substrate, and the sensor measures changes in the current between the electrodes, indicating strain or pressure on the sensor.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: October 7, 2014
    Assignee: 7-Sigma Incorporated
    Inventors: Wade R. Eichhorn, Kristian G. Wyrobek
  • Patent number: 8839676
    Abstract: The invention relates to a structural element for an orthopedic device, comprising at least one sensor (2) disposed in or on the structural element (1) and connected by means of conductors (13) for transferring energy and/or sensor signals, wherein the conductors (13) are integrated in the structural element (1), extend along an end area (A) of the structural element (1), and open into the end area (A), forming contact surfaces (3) there.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: September 23, 2014
    Assignee: Otto Bock Healthcare GmbH
    Inventors: Wissam Jarjour, Olaf Kroll-Orywahl, Matthias Schilling
  • Publication number: 20140260653
    Abstract: In one general aspect, an apparatus comprises a material including a non-layered mixture of an elastomeric polymer with a plurality of voids; and a plurality of conductive fillers disposed in the elastomeric polymer. The apparatus may produce an electrical response to deformation and, thus, function as a strain gauge. The conductive fillers may include conductive nanoparticles and/or conductive stabilizers. In another general aspect, a method of measuring compression strain includes detecting, along a first axis, an electrical response generated in response to an impact to a uniform composite material that includes conductive fillers and voids disposed throughout an elastomeric polymer, and determining a deformation of the impact based on the electrical response. The impact may be along a second axis different from the first axis.
    Type: Application
    Filed: April 30, 2014
    Publication date: September 18, 2014
    Applicant: Brigham Young University
    Inventors: Aaron Jake Merrell, David T. Fullwood, Anton E. Bowden, Taylor D. Remington
  • Patent number: 8826748
    Abstract: A stress-detecting element includes a support body, a support film, a first piezoelectric element, first and second elastic parts. The support body has an opening part with first and second rectilinear sections extending parallel to each other. The support film blocks off the opening part. The first piezoelectric element straddles the first rectilinear section from an interior area to an exterior area of the opening part as seen in plan view. The first elastic part straddles the first rectilinear section from the interior area to the exterior area of the opening part. The second elastic part straddles the second rectilinear section from the interior area to the exterior area of the opening part. The first and second elastic parts respectively have first and second elastic end sections disposed in the interior area of the opening part and spaced apart from each other.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: September 9, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tomoaki Nakamura, Tsutomu Nishiwaki
  • Patent number: 8789425
    Abstract: A micromachined or microelectromechanical system (MEMS) based push-to-pull mechanical transformer for tensile testing of micro-to-nanometer scale material samples including a first structure and a second structure. The second structure is coupled to the first structure by at least one flexible element that enables the second structure to be moveable relative to the first structure, wherein the second structure is disposed relative to the first structure so as to form a pulling gap between the first and second structures such that when an external pushing force is applied to and pushes the second structure in a tensile extension direction a width of the pulling gap increases so as to apply a tensile force to a test sample mounted across the pulling gap between a first sample mounting area on the first structure and a second sample mounting area on the second structure.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: July 29, 2014
    Assignee: Hysitron Incorporated
    Inventors: Yunje Oh, Edward Cyrankowski, Zhiwei Shan, Syed Amanula Syed Asif
  • Publication number: 20140182389
    Abstract: Yield stress is an important indicator of the strength of a component such as a pipe section. A method and apparatus for measuring yield stress of components made from magnetic materials is provided. The magnetic permeability of the material is recorded at multiple stress levels below yield establishing a permeability-stress relationship. The yield stress is then estimated as a function of the recorded permeability-stress relationship. The permeability stress relationship may be non-linear for a range of stress levels, achieving a peak permeability response for a stress below yield. The yield stress may be estimated as a multiple of the stress at which the peak permeability response is recorded.
    Type: Application
    Filed: October 30, 2013
    Publication date: July 3, 2014
    Applicant: Jentek Sensors, Inc.
    Inventors: Todd M. Dunford, Neil J. Goldfine, Shayan Haque
  • Publication number: 20140174190
    Abstract: Implementations and techniques for manufacturing strain sensitive sensors and/or strain resistant conduits from a metal and carbon matrix are generally disclosed.
    Type: Application
    Filed: June 7, 2012
    Publication date: June 26, 2014
    Applicant: Jawaharlal Nehru Centre for Advanced Scientific-Research
    Inventors: Giridhar Udapi Rao Kulkarni, Boya Radha, Abhay Abhimanyu Sagade
  • Patent number: 8757001
    Abstract: A force sensor system includes a substrate, a cover, a sensor, and a spherical force transfer element. The cover is coupled to the substrate, and has an inner surface, an outer surface, an opening extending between the inner and outer surfaces, and a wall structure extending from the inner surface that defines a sensor cavity between the inner surface and the substrate. The sensor is mounted on the substrate, is disposed within the sensor cavity, and is configured to generate a sensor signal representative of a force supplied to the sensor. The spherical force transfer element is disposed partially within the sensor cavity, is movable relative to the cover, extends from the opening in the cover, and engages the sensor. The spherical force transfer element is adapted to receive an input force and is configured, upon receipt of the input force, to transfer the input force to the sensor.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 24, 2014
    Assignee: Honeywell International Inc.
    Inventors: Richard Wade, Ian Bentley, Mohammed Abdul Javvad Qasimi
  • Patent number: 8760039
    Abstract: A diamond-shaped actuator for a flexible panel has an inter-digitated electrode (IDE) and a piezoelectric wafer portion positioned therebetween. The IDE and/or the wafer portion are diamond-shaped. Point sensors are positioned with respect to the actuator and measure vibration. The actuator generates and transmits a cancelling force to the panel in response to an output signal from a controller, which is calculated using a signal describing the vibration. A method for controlling vibration in a flexible panel includes connecting a diamond-shaped actuator to the flexible panel, and then connecting a point sensor to each actuator. Vibration is measured via the point sensor. The controller calculates a proportional output voltage signal from the measured vibration, and transmits the output signal to the actuator to substantially cancel the vibration in proximity to each actuator.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: June 24, 2014
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Noah H. Schiller, Randolph H. Cabell, Daniel F. Perey
  • Publication number: 20140157906
    Abstract: A load cell extending in an axial direction having an outer surface includes a groove in the outer surface having a first flat wall, and a second flat wall; and a principal strain sensor positioned on the first flat wall to measure tension and compression in the axial direction.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 12, 2014
    Applicant: GOODRICH CORPORATION
    Inventor: Thomas Freshour
  • Publication number: 20140144245
    Abstract: A curved surface shaped membrane pressure sensor for a moving member and the method for manufacturing the same, the sensor comprising an elastic curved plate and a subtype grid membrane switch formed on the curved plate, wherein the membrane switch is coupled to a cutting board shell of the moving member on one side opposed to the curved plate, and the subtype grid membrane switch is used for sensing the presence of pressure on the curved plate. The curved surface shaped membrane pressure sensor according to the present invention can not only meet the requirements on appearance of the moving member, but also effectively sense the touching to prevent injury on the object being detected, and additionally can effectively achieving the effects of fireproofing and waterproofing.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 29, 2014
    Applicant: GE Medical Systems Global Technology Company, LLC
    Inventors: Jianhai Zhang, Wei Lin, Qiang Cheng
  • Patent number: 8725431
    Abstract: A tactile sensor unit is provided, which includes a substrate; a coat formed on the substrate; and a cantilever beam structure having one end fixed to the substrate and curved to rise in such a direction that the other end of the cantilever beam structure is farther from the substrate than the one end. The tactile sensor unit detects a load applied to the coat. The cantilever beam structure is capable of resonating at a first resonant frequency and a second resonant frequency which is different from the first resonant frequency. The tactile sensor unit further includes a computation section for calculating a directional component of the load based on a change ratio of the first resonant frequency obtained in accordance with a change in the load and a change ratio of the second resonant frequency obtained in accordance with the change in the load.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: May 13, 2014
    Assignee: National University Corporation Kyoto Institute of Technology
    Inventor: Kaoru Yamashita