公开(公告)号：US11835400B2

公开(公告)日：2023-12-05

申请号：US17205728

申请日：2021-03-18

Applicant: UltraSense Systems, Inc.

Inventor： Zhongxuan Tu ,  Deliang Tao ,  Chunlei Qian ,  Sina Akhbari ,  Hao-Yen Tang

IPC: G01L5/167 ,  G01L25/00 ,  G01L1/16 ,  G01L27/00 ,  G06F3/041

CPC classification number: G01L5/167 ,  G01L1/16 ,  G01L25/00 ,  G01L27/002 ,  G06F3/0418

Abstract: A force-measuring device testing system is disclosed. A linear actuator assembly includes a Z-axis actuator and a slider. A load cell is secured to the slider, such that actuation of the Z-axis actuator is mechanically coupled to a vertical movement of the load cell via the slider. The load cell is configured to impart a time-varying applied force to the sample which includes a force-measuring device. A load cell signal processing circuitry is configured to measure force signals at the load cell and output amplified force signals to the controller. The controller is configured to repeatedly carry out the following until a desired force trajectory has been executed: (1) calculate digital force signals in accordance with the amplified force signals, (2) calculate a next actuation of the Z-axis actuator in accordance with a desired force trajectory and an elastic parameter, and (3) control the actuation of the Z-axis actuator in accordance with its next calculated actuation.

公开(公告)号：US11269509B2

公开(公告)日：2022-03-08

申请号：US17076489

申请日：2020-10-21

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Hamid Sepehr ,  Pablo Peso Parada ,  Willem Zwart ,  Tom Birchall ,  Michael Allen Kost ,  Tejasvi Das ,  Siddharth Maru ,  Matthew Beardsworth ,  Bruce E. Duewer

IPC: G06F3/0488 ,  G06F3/041 ,  G01L5/162 ,  G01L5/165 ,  G01L5/167 ,  G01L5/164

Abstract: A force sensing system for determining if a user input has occurred, the system comprising: an input channel, to receive an input from at least one force sensor; an activity detection stage, to monitor an activity level of the input from the at least one force sensor and, responsive to an activity level which may be indicative of a user input being reached, to generate an indication that an activity has occurred at the force sensor; and an event detection stage to receive said indication, and to determine if a user input has occurred based on the received input from the at least one force sensor.

公开(公告)号：US10801644B2

公开(公告)日：2020-10-13

申请号：US16259807

申请日：2019-01-28

Applicant: Caterpillar Inc.

Inventor： James Dunn ,  Wes Holm ,  Leo Chen ,  Tim Camacho

IPC: G01L5/16 ,  G01M5/00 ,  F16L1/00 ,  F16L1/036 ,  G01L5/163 ,  G01L5/167 ,  G01L5/166

Abstract: A device for providing pipelaying guidance is disclosed. The device may determine an original shape of a pipeline that comprises a plurality of pipeline segments. The device may obtain current location data concerning a respective position of each pipeline segment of the plurality of pipeline segments, and may determine a current shape of the pipeline based on the current location data. The device may calculate, based on the original shape of the pipeline and the current shape of the pipeline, stress information concerning the pipeline, and may perform one or more actions based on the stress information.

公开(公告)号：US10677667B2

公开(公告)日：2020-06-09

申请号：US15579418

申请日：2016-05-27

Applicant: KISTLER HOLDING AG

Inventor： Claudio Cavalloni ,  Denis Kohler ,  Daniel Fuerer

IPC: G01L1/16 ,  G01L5/167 ,  G01L3/10 ,  G01L3/14 ,  G01L5/16

Abstract: The invention relates to a component transducer (20) for sensing a torque component (Mx, My, Mz); wherein an element (21) made of piezoelectric crystal material comprises element surfaces; wherein a force component (Fx, Fy, Fz) produces electric polarization charges on the element surfaces; and wherein the torque component (Mx, My, Mz) to be sensed consists of at least one pair having force components (+Fx, −Fx; +Fy, −Fy; +Fz, −Fz) wherein said force components (+Fx, −Fx; +Fy, −Fy; +Fz, −Fz) of a pair have the same axis of action and opposite directions of action. The component transducer (20) receives the force components (+Fx, −Fx; +Fy, −Fy; +Fz, −Fz) of a pair separately.

公开(公告)号：US20240215452A1

公开(公告)日：2024-06-27

申请号：US17798015

申请日：2022-02-21

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION ,  FOUNDATION OF SOONGSIL UNIVERSITY - INDUSTRY COOPERATION

Inventor： Gyuchul Yi ,  Hongseok Oh

IPC: H10N30/85 ,  G01L5/167 ,  H10N30/30 ,  H10N30/87

CPC classification number: H10N30/85 ,  G01L5/167 ,  H10N30/302 ,  H10N30/87

Abstract: An orthostatic hypotension screening system using a heart rate-based machine learning algorithm includes an input unit configured to receive a variable comprising at least one of a patient's age, blood pressure, an expiration (E)-inspiration (I) difference and an E:I ratio calculated from a heart rate, and a Valsalva ratio calculated according to a Valsalva method; and a determination unit configured to determine whether the patient has orthostatic hypotension according to a machine learning algorithm that is pre-trained based on the variable received through the input unit.

公开(公告)号：US11976917B2

公开(公告)日：2024-05-07

申请号：US17315289

申请日：2021-05-08

Applicant: CYTRONIQ, LTD.

Inventor： Michael Myungsub Lee

IPC: G01L5/14 ,  B63B21/50 ,  B63B39/00 ,  B63B49/00 ,  B63B71/00 ,  B63B71/10 ,  B63B71/20 ,  B63B79/00 ,  B63B79/10 ,  B63B79/15 ,  B63B79/30 ,  B63B79/40 ,  E21B17/01 ,  G01B11/16 ,  G01L1/24 ,  G01L5/00 ,  G01L5/167 ,  G01M3/00 ,  G01S13/86 ,  G01S13/937 ,  G01S17/93 ,  G01D5/353 ,  G01S13/95

CPC classification number: G01B11/18 ,  B63B49/00 ,  B63B71/00 ,  B63B71/10 ,  B63B71/20 ,  B63B79/00 ,  B63B79/10 ,  B63B79/15 ,  B63B79/30 ,  B63B79/40 ,  E21B17/01 ,  G01B11/16 ,  G01L1/246 ,  G01L5/0038 ,  G01L5/167 ,  G01M3/00 ,  G01S13/865 ,  G01S13/937 ,  G01S17/93 ,  G01D5/35316 ,  G01S13/956 ,  Y02A20/00 ,  Y02A90/10 ,  Y02T70/10

Abstract: A system for monitoring a physical change of a marine structure includes a complex optical measuring instrument configured to detect a behavior and structural change of the marine structure by using at least one optical sensor by means of optical fiber Bragg grating.

公开(公告)号：US11644373B2

公开(公告)日：2023-05-09

申请号：US17241280

申请日：2021-04-27

Applicant: Aktiebolaget SKF

Inventor： Andrew Campbell ,  Hans Soetens ,  Allan Thomson

IPC: G01L5/167 ,  G01L1/16 ,  G01L5/22

CPC classification number: G01L5/167 ,  G01L1/16 ,  G01L5/228

Abstract: A piezoelectric strain sensor unit for a rolling bearing includes a piezoelectric strain sensor, and a sensor holder provided with a main body having a front face intended to be into contact with a component of the rolling bearing and a rear face, and with at least two flexible arms mounted on the main body and supporting opposite ends of the piezoelectric strain sensor, the piezoelectric strain sensor being axially located on the side of the rear face of the main body while remaining spaced apart from the rear face. The sensor holder is provided with a central pin which protrudes axially with regard to the front face of the main body and which is axially moveable with regard the main body, the central pin axially abutting onto the piezoelectric strain sensor.

公开(公告)号：US11507267B2

公开(公告)日：2022-11-22

申请号：US17471529

申请日：2021-09-10

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Hamid Sepehr ,  Pablo Peso Parada ,  Willem Zwart ,  Tom Birchall ,  Michael Allen Kost ,  Tejasvi Das ,  Siddharth Maru ,  Matthew Beardsworth ,  Bruce E. Duewer

IPC: G06F3/0488 ,  G06F3/041 ,  G01L5/162 ,  G01L5/165 ,  G01L5/167 ,  G01L5/164

Abstract: A force sensing system for determining if a user input has occurred, the system comprising: an input channel, to receive an input from at least one force sensor; an activity detection stage, to monitor an activity level of the input from the at least one force sensor and, responsive to an activity level which may be indicative of a user input being reached, to generate an indication that an activity has occurred at the force sensor; and an event detection stage to receive said indication, and to determine if a user input has occurred based on the received input from the at least one force sensor.

公开(公告)号：US20210408364A1

公开(公告)日：2021-12-30

申请号：US17277085

申请日：2018-10-10

Applicant: JOANNEUM RESEARCH Forschungsgesellschaft mbH

Inventor： Barbara Stadlober ,  Martin Zirkl ,  Philipp Schäffner ,  Andreas Tschepp

IPC: H01L41/113 ,  G01L5/167 ,  H01L41/047 ,  H01L41/333

Abstract: A piezoelectric sensor, comprising at least one first electrode, at least one second electrode, and a piezoelectric material, wherein the piezoelectric material has an anisotropic electromechanical coupling and the at least one first and second electrodes are at least in part embedded in the piezoelectric material, the piezoelectric material having a first surface wherein the electrodes extend vertically within the piezoelectric material from the first surface.

公开(公告)号：US20210364377A1

公开(公告)日：2021-11-25

申请号：US17241280

申请日：2021-04-27

Applicant: Aktiebolaget SKF

Inventor： Andrew Campbell ,  Hans Soetens ,  Allan Thomson

IPC: G01L5/167 ,  G01L5/22 ,  G01L1/16

Abstract: A piezoelectric strain sensor unit for a rolling bearing includes a piezoelectric strain sensor, and a sensor holder provided with a main body having a front face intended to be into contact with a component of the rolling bearing and a rear face, and with at least two flexible arms mounted on the main body and supporting opposite ends of the piezoelectric strain sensor, the piezoelectric strain sensor being axially located on the side of the rear face of the main body while remaining spaced apart from the rear face. The sensor holder is provided with a central pin which protrudes axially with regard to the front face of the main body and which is axially moveable with regard the main body, the central pin axially abutting onto the piezoelectric strain sensor.