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公开(公告)号：US11231333B2
公开(公告)日：2022-01-25
申请号：US16880613
申请日：2020-05-21
发明人： Alexander Hofmann
摘要： Disclosed herein is a device for measuring mechanical stress. The device comprises a magnetostrictive body enclosing a remanent magnetization. The magnetostrictive body comprises first and second end surfaces that are arranged opposite to each other. At least one of the first and second end surfaces is configured to receive a mechanical stress. The magnetostrictive body further comprises a first recess formed at the first end surface towards the second end surface and a second recess formed at the second end surface towards the first end surface. In a projection perpendicular to the first end surface, the first recess overlaps the second recess and extends beyond the second recess. Further disclosed are a method of manufacturing such a device and a method of measuring mechanical stress using such a device.
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公开(公告)号：US11230864B2
公开(公告)日：2022-01-25
申请号：US17041581
申请日：2019-02-25
发明人： Alain Fontanet , Armand Castandet
摘要： A device for detecting the intention to lock or unlock a vehicle opening element integrated into a handle and including a housing, a variation in the position of a target occurring under pressure from a user on the handle. A primary coil has turns wound in a plane parallel to the plane of the surface of the target. A receiver secondary coil that receives a magnetic field induced by the primary coil and has its turns wound in a plane parallel to the plane of the turns of the primary coil and with the target at least partially intercalated between the primary and secondary coils when pressure is applied to the handle. A variation in the magnetic field received by the secondary coil is detected by a measurement device for measuring a parameter resulting from the voltage induced in the secondary coil.
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公开(公告)号：US20220011872A1
公开(公告)日：2022-01-13
申请号：US17032590
申请日：2020-09-25
发明人： Jong Yun KIM , Gye Won LEE
摘要： A touch sensing device includes: a first sensing coil having conductivity; a second sensing coil having conductivity; a substrate having a space accommodating either one or both of the first sensing coil and the second sensing coil, wherein at least a portion of the substrate is disposed between the first sensing coil and the second sensing coil; and an elastic member configured to be compressed as external pressure is applied and the substrate descends.
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公开(公告)号：US20210389191A1
公开(公告)日：2021-12-16
申请号：US17228838
申请日：2021-04-13
摘要： A method for estimating the load of a tire supporting a vehicle includes providing the tire, in which the tire includes a pair of sidewalls extending to a circumferential tread, and the tread includes a plurality of tread blocks. A length of the tire footprint is indicated with a first time interval, and a full rotation of the tire is indicated with a second time interval. The first time interval may be indicated by peaks of an amplitude of a tire-based magnetic sensor signal, and the second time interval may be indicated by peaks of the amplitude of the tire-based magnetic sensor signal or by a linear speed of the vehicle. The load on the tire is determined from a ratio of the first time interval to the second time interval at an inflation pressure of the tire. A tire load estimation system is also provided.
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公开(公告)号：US11190184B2
公开(公告)日：2021-11-30
申请号：US16086497
申请日：2017-01-25
发明人： Francois Gueissaz
IPC分类号： G01L1/00 , G01D5/20 , H03K17/97 , A63B69/12 , G04F8/08 , A63B71/06 , H03K17/972 , G01L1/12 , G04F8/00
摘要： A force sensor including: a first part including a detection coil; a second part positioned opposite the first part and including: a ferromagnetic plate translationally movable relative to the first part to move towards the first part when a force is transferred to the sensor and to reduce reluctance of a magnetic circuit formed by the first and second parts in series with a variable gap; and an electronic detection circuit configured to generate a signal dependent on the reluctance of the magnetic circuit. The ferromagnetic plate is formed by an amorphous metal alloy.
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公开(公告)号：US20210307455A1
公开(公告)日：2021-10-07
申请号：US17354166
申请日：2021-06-22
申请人： Steven H. Walker , Phillip Meneau
发明人： Steven H. Walker , Phillip Meneau
IPC分类号： A43C11/16 , A43C11/00 , A61B5/00 , G01D5/12 , G01L1/14 , A43B1/00 , A43B3/00 , G01L5/12 , G01L5/24 , G01L5/00 , G01L5/16 , G01L5/165 , A43B13/14 , A43B17/00 , A43C1/00 , G01D5/24 , G05B15/02 , A43C7/00 , G01L1/12 , G05B19/048
摘要： A foot presence sensor system for an active article of footwear can include a sensor housing configured to be disposed at or in an insole of the article, and a controller circuit, disposed within the sensor housing, configured to trigger one or more automated functions of the footwear based on a foot presence indication. In an example, the sensor system includes a capacitive or magnetic sensor configured to sense changes in a body's proximity to the sensor in footwear. Characteristics of the sensed proximity can be used to update an automated footwear function, such as an automatic lacing function, or can be used to determine a step count, foot strike force, a rate of travel, or other information about a foot or about the footwear.
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公开(公告)号：US11135882B2
公开(公告)日：2021-10-05
申请号：US16789735
申请日：2020-02-13
发明人： Chad Reed , Julius Beck , Florian Burghardt , Johannes Gießibl , Chris Liston
摘要： A magneto-elastically-based active force sensor, used with a tow coupling between a towed and a towing vehicle or a coupling between a vehicle body and a suspension of the vehicle, which outputs a signal useful for determining forces acting on the coupling. The outputted force information may be provided by processor-enabled embedded software algorithms that take inputs from the force sensor and other sensors, may be used by one or more vehicle systems during operating of the vehicle, such as engine, braking, stability, safety, and informational systems. The force sensor includes directionally-sensitive magnetic field sensing elements inside the sensor, and shielding may be used around the sensors to reduce the influence of external magnetic fields on the sensing elements. The force sensor may be used with different tow and vehicle weight sensing coupling devices installed on different types of automobile cars and trucks.
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公开(公告)号：US20210278292A1
公开(公告)日：2021-09-09
申请号：US17329675
申请日：2021-05-25
发明人： Akira Ando , Daichi Chiba
摘要： 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.
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公开(公告)号：US20210270688A1
公开(公告)日：2021-09-02
申请号：US17254754
申请日：2019-06-26
申请人： Trafag AG
发明人： Tobias ETTENAUER , Christoph SCHANZ
摘要： To reduce a hysteresis error, the invention provides a load measurement method (12) for measuring a load in a test object (14), comprising: a) generating a magnetic field in the test object (14) by means of at least one magnetic field generating coil (Lg) to which a periodically alternating current is applied; b) detecting a magnetic field parameter which changes on the basis of a load in the test object (14), using at least one magnetic field detecting device, in order to generate a magnetic field parameter signal (51) which changes periodically according to the periodically generated magnetic field, characterized by: c) detecting the hysteresis-to-signal ratio of the magnetic field parameter signal (51) over time within one period; and d) disregarding magnetic field parameter signal values from at least one predetermined timespan within each period in which a maximum hysteresis-to-signal ratio occurs.
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公开(公告)号：US11084342B2
公开(公告)日：2021-08-10
申请号：US16778917
申请日：2020-01-31
发明人： Chad Reed , Julius Beck , Florian Burghardt , Johannes Gießibl , Chris Liston
摘要： A magneto-elastically-based active force sensor, used with a tow coupling between a towed and a towing vehicle or a coupling between a vehicle body and a suspension of the vehicle, which outputs a signal useful for determining forces acting on the coupling. The outputted force information may be provided by processor-enabled embedded software algorithms that take inputs from the force sensor and other sensors, may be used by one or more vehicle systems during operating of the vehicle, such as engine, braking, stability, safety, and informational systems. The force sensor includes directionally-sensitive magnetic field sensing elements inside the sensor, and shielding may be used around the sensors to reduce the influence of external magnetic fields on the sensing elements. The force sensor may be used with different tow and vehicle weight sensing coupling devices installed on different types of automobile cars and trucks.
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