公开(公告)号：US20250147129A1

公开(公告)日：2025-05-08

申请号：US18939078

申请日：2024-11-06

Applicant: Infineon Technologies AG

Inventor： Bernhard ENDRES ,  Andreas STRAßER

IPC: G01R33/09 ,  G01L1/12 ,  H10N50/10 ,  H10N50/85

Abstract: The present disclosure relates to a magnetoresistive sensor. The magnetoresistive sensor includes at least one sensor element having a layer stack. The layer stack includes a magnetically free layer with a magnetically free magnetization. A measurement sensitivity of the sensor element is temperature-dependent. The magnetoresistive sensor also includes a device which is configured to induce a temperature-dependent mechanical stress in the magnetically free layer. The temperature dependence of the measurement sensitivity can be at least partially compensated for by the temperature-dependent mechanical stress.

公开(公告)号：US20250003818A1

公开(公告)日：2025-01-02

申请号：US18692969

申请日：2021-11-26

Applicant: AUTONETWORKS TECHNOLOGIES, LTD. ,  SUMITOMO WIRING SYSTEMS, LTD. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Hirokazu KOMORI ,  Fujio SONODA ,  Takumi OOSHIMA

IPC: G01L5/10 ,  G01L1/12 ,  G01L1/20 ,  H01B7/00

Abstract: A pressure detection system for electric wire that can continuously monitor application of pressure to an electric wire. A pressure detection system for an electric wire includes: a sensor unit including a tape-shaped substrate made of an elastic dielectric material, and conductive coating layers provided on both surfaces of the substrate; a detection unit configured to measure characteristic impedance between the two coating layers constituting the sensor unit; and a recording unit configured to record a history of a change in the characteristic impedance measured by the detection unit, wherein the sensor unit is disposed on an outer periphery of an electric wire in such a manner that one of the coating layers extends along a surface of the electric wire.

公开(公告)号：US12178675B2

公开(公告)日：2024-12-31

申请号：US18226317

申请日：2023-07-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Franciscus Jozef Bosman

IPC: A61C17/22 ,  A46B5/00 ,  A46B13/02 ,  A46B15/00 ,  G01L1/12

Abstract: An electric toothbrush (10) and method of operating an electric toothbrush. The electric toothbrush includes a handle portion (14) having a shaft (38) configured to receive a brushing load from a bristled end (18) of a brush head (12). A sensor assembly (30) is configured to determine a deflection proportional to the brushing load with respect to a first direction (24) associated with the brushing load. The sensor assembly includes an air gap (32) and is configured to determine the deflection based on changes in the air gap. A mounting bracket (50) is connected between opposite sides of the air gap, the mounting bracket having a first bending stiffness with respect to the first direction, and a second bending stiffness with respect to a second direction (28) generally opposite to the first direction. The first bending stiffness is greater than the second bending stiffness.

公开(公告)号：US20240385711A1

公开(公告)日：2024-11-21

申请号：US18272388

申请日：2023-03-17

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Yong Taek HONG ,  Han UI KIM ,  Ji Seok SEO

IPC: G06F3/041 ,  G01L1/12 ,  G01L1/18 ,  G01L1/22

Abstract: The present invention relates to a stretchable pressure sensor array, comprising: a sensor sheet including an elastic body; a plurality of conductive pillars at least partially embedded in the sensor sheet and formed by aligning magnetic particles in a thickness direction of the sensor sheet; an upper electrode formed on the sensor sheet; and a lower electrode formed under the sensor sheet, wherein when pressure is applied from the upper or lower surface of the sensor sheet in the thickness direction, a conductive path is formed between the upper and lower electrodes and the conductive pillar so that current flows.

公开(公告)号：US12146815B2

公开(公告)日：2024-11-19

申请号：US17265028

申请日：2019-07-30

Applicant: OFFICINE MACCAFERRI S.p.A.

Inventor： Luca Maffeo Albertelli ,  Pierluigi Bassetto

IPC: G01M5/00 ,  E01F7/04 ,  E02D17/20 ,  G01L1/04 ,  G01L1/12 ,  G01L1/20 ,  G08B21/10

Abstract: The present invention describes an electronic device (2) and corresponding method for monitoring hydrogeological phenomena, in particular the integrity of a rockfall protection barrier by detecting mechanical load exceeding a threshold, such as due to impact or debris flow. The device is provided with elongated flexible “legs” protruding from the housing in a radial manner and connected to a surface to be monitored (i.e. rockfall net) for detecting mechanical stress.

公开(公告)号：US20240272019A1

公开(公告)日：2024-08-15

申请号：US18569912

申请日：2022-06-15

Applicant: FLORIDA ATLANTIC UNIVERSITY BOARD OF TRUSTEES

Inventor： Erik D. ENGEBERG

IPC: G01L1/12

CPC classification number: G01L1/122

Abstract: A novel sensor, intended for use in applications for robots, prosthetics, biomedical devices, or the internet of things, using a ferrous magnetic fluid is presented here. The sensor includes a deformable member containing the magnetic fluid therein and an array of Hall effect sensors to measure the changing magnetic field in the fluid as the deformable member is deformed. The sensor was found to be sensitive to varying applied pressure and is capable of resolving both the location and amplitude of externally applied forces. The range of applications for this novel pressure sensor are broad, ranging from robotics to biomedical devices and the Internet of things. The novel sensor can also be used as an orientation sensor or an accelerometer, torque detector and linear shear forces detector.

公开(公告)号：US20240210260A1

公开(公告)日：2024-06-27

申请号：US18286940

申请日：2022-06-06

Applicant: NATIONAL UNIVERSITY OF SINGAPORE

Inventor： Zeyu LU ,  Haoyong YU

IPC: G01L5/00 ,  B25J9/16 ,  B25J15/10 ,  G01L1/12

CPC classification number: G01L5/0061 ,  B25J9/1633 ,  B25J15/10 ,  G01L1/122

Abstract: A force sensor comprising a contact arrangement for transmitting a contact force to a force sensor assembly. The force sensor assembly comprising a first sensor sensing, and producing an output from, a normal contact force component of the contact force; and a body moveable on transmission of the contact force to the force sensor assembly; and a second sensor for sensing, and producing an output from, a relative displacement of the body relative to the second sensor, the a tri-axis contact force being determined from the relative displacement.

公开(公告)号：US12013294B2

公开(公告)日：2024-06-18

申请号：US17438982

申请日：2020-03-04

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Ype Bernardus Brada ,  Maurits Koenen

IPC: G01L1/12 ,  G01L1/22 ,  G01L5/164 ,  G01L5/169

CPC classification number: G01L1/12 ,  G01L1/22 ,  G01L5/164 ,  G01L5/169

Abstract: A two-dimensional force sensor for measuring a first force in a first direction and a second force in a second direction. The sensor comprises a first resilient plate oriented in the second direction, a first end of the first resilient plate being arranged for being coupled to a reference point; a second resilient plate oriented in the first direction, a first end of the second resilient plate coupled to a second end of the first resilient plate and a measurement probe coupled to a second end of the second resilient plate. The measurement probe is mounted on an extension device mounted to the second end of the second resilient plate. The extension device positions the measurement probe at a position deviating from an imaginary cross-section point of the first resilient plate and the second resilient plate by no more than 20% of a length of the extension device.

公开(公告)号：US11959815B2

公开(公告)日：2024-04-16

申请号：US17329675

申请日：2021-05-25

Applicant: Murata Manufacturing Co., Ltd. ,  The University of Tokyo

Inventor： Akira Ando ,  Daichi Chiba

IPC: G01L1/12 ,  H01F10/32 ,  H01F41/30

CPC classification number: G01L1/12 ,  H01F10/3272 ,  H01F41/302

Abstract: Disclosed herein is a stress sensor that includes a stress detection layer including a laminated body including a first ferromagnetic layer, a first non-magnetic layer, a second ferromagnetic layer, and an antiferromagnetic layer stacked one on another. The antiferromagnetic layer includes Mn, and the magnetization direction of the second ferromagnetic layer is fixed by the exchange bias caused by the exchange coupling with the antiferromagnetic layer. The stress sensor detects a stress by an electric resistance depending upon a relative angle between magnetization directions of the first ferromagnetic layer and the second ferromagnetic layer, the relative angle changing depending upon an externally applied stress.

公开(公告)号：US11927494B2

公开(公告)日：2024-03-12

申请号：US17901380

申请日：2022-09-01

Applicant: UNIVERSITY OF KANSAS

Inventor： Cory Berkland ,  Jonathan Whitlow ,  Jean Salash

IPC: G01L1/12 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C09D11/037 ,  C09D11/102 ,  H01F7/20 ,  B29C64/118 ,  B29K83/00 ,  B29K105/16 ,  B29K509/08 ,  H01F1/032

CPC classification number: G01L1/12 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C09D11/037 ,  C09D11/102 ,  H01F7/20 ,  B29C64/118 ,  B29K2083/00 ,  B29K2105/162 ,  B29K2509/08 ,  B29K2995/0008 ,  H01F1/032

Abstract: Disclosed are functional materials for use in additive manufacturing (AM). The functional material can comprise an elastomeric composition (e.g., a silicone composite) for use in, for example, direct ink writing. The elastomeric composition can include an elastomeric resin, and a magnetic nanorod filler dispersed within the elastomeric resin. Nanorod characteristics (e.g., length, diameter, aspect ratio) can be selected to create 3D-printed constructs with desired mechanical properties along different axes. Furthermore, since nickel nanorods are ferromagnetic, the spatial distribution and orientation of nanorods within the continuous phase can be controlled with an external magnetic field. This level of control over the nanostructure of the material system offers another degree of freedom in the design of functional parts and components with anisotropic properties. Magnetic fields can be used to remotely sense compression of the constructs, or alternatively, control the stiffness of these materials.