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公开(公告)号：US11852556B2
公开(公告)日：2023-12-26
申请号：US17941120
申请日：2022-09-09
Applicant: Trafag AG
Inventor： Tobias Ettenauer , Falk von Seggern
CPC classification number: G01L3/103 , G01L1/125 , G01L25/003
Abstract: For more accurate load measurement, a load measuring arrangement includes a test object and a load measuring device for measuring a load on the test object. The load measuring device includes at least one magnetic field detection device for detecting a magnetic field parameter changing due to load at a measuring zone of the test object. The test object is work-hardened, at least at the measuring zone and at least in a near-surface region extending from a surface facing the magnetic field detection device to a depth of 20 μm, in such a way that it has a dislocation density of at least 5e8/cm2 and/or a residual stress of at least 400 MPa in amount.
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2.发明申请公开(公告)号：US20190239760A9
公开(公告)日：2019-08-08
申请号：US15421283
申请日：2017-01-31
Applicant: Kabushiki Kaisha Toshiba
Inventor： Yoshihiko Fuji , Hideaki Fukuzawa , Shiori Kaji
CPC classification number: A61B5/02141 , B81B3/0078 , B81B2201/0257 , B81B2201/06 , G01L1/125 , G01L9/0041 , G01L9/16 , G06F3/0414 , H04R3/00 , H04R19/04 , H04R23/00 , H04R23/006 , H04R31/006 , H04R2201/003 , H04R2410/03 , H04R2420/07 , H04R2499/11
Abstract: According to one embodiment, a strain sensing element provided on a deformable substrate includes: a first magnetic layer; a second magnetic layer; a spacer layer; and a bias layer. Magnetization of the second magnetic layer changes according to deformation of the substrate. The spacer layer is provided between the first magnetic layer and the second magnetic layer. The second magnetic layer is provided between the spacer layer and the bias layer. The bias layer is configured to apply a bias to the second magnetic layer.
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3.发明申请公开(公告)号：US20180328802A1
公开(公告)日：2018-11-15
申请号：US16026274
申请日：2018-07-03
Inventor： Paul Louis Maria Joseph van Neer , Michiel Peter Oderwald , Maurits Sebastiaan van der Heiden
CPC classification number: G01L1/246 , A61B34/20 , A61B2034/2051 , A61B2034/2055 , A61B2034/2061 , G01D5/35312 , G01D5/35316 , G01D5/35377 , G01L1/125
Abstract: The invention relates to an absolute position measuring device, comprising an optical fiber, an optical strain sensor in optical communication with the optical fiber, and a volume of material deforming under influence of a magnetic field. The optical strain sensor is arranged for sensing deformation of the volume of material. Further, the device is arranged for multi-dimensional position measurement.
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4.发明申请公开(公告)号：US20180306654A1
公开(公告)日：2018-10-25
申请号：US15770791
申请日：2016-11-02
Applicant: BASF SE
Inventor： Oskar Stephan , Roland Schuhmann , Tom Catterman
Abstract: The invention relates to a device (14) and to a method for the contactless detection of a torque of a shaft (10) and/or torsional natural frequencies and/or torsional oscillations. The shaft (10) contains a ferromagnetic material. A measurement head (16) facing toward a shaft wall (12) comprises an excitation coil (22) which couples a magnetic field into the shaft (10). The measurement head (16) furthermore contains a number of measurement coils (24, 26, 28, 30), which measure the magnetic field emerging from the shaft (10).
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公开(公告)号：US10082431B2
公开(公告)日：2018-09-25
申请号：US14839301
申请日：2015-08-28
Applicant: Honeywell International Inc.
Inventor： Romney R. Katti
Abstract: System and methods for magnetic Tunnel Junction pressure sensors are provided. In at least one implementation, a pressure sensor device comprises a magnetic tunnel junction comprising a free layer structure, a tunnel barrier, and a reference layer structure, wherein one or more surfaces of the free layer structure is exposed to respond to a pressure medium; and a voltage source coupled to the magnetic tunnel junction, the voltage source providing electrical power to the free layer structure and the reference layer structure. The device further comprises a current detector coupled between the magnetic tunnel junction and the voltage source; and a pressure calculating device, configured to calculate a pressure based on a current detected by the current detector.
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Patent Agency Ranking
公开(公告)号：US10041820B2
公开(公告)日：2018-08-07
申请号：US15034654
申请日：2014-08-12
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Jorg Bauer , Marco Frank , Armin Gerner , Bernd Wittmann , Christian Lehmann , Matthias Sperber
CPC classification number: G01D11/245 , G01D5/145 , G01K1/14 , G01L1/125 , G01M17/007 , G01P1/026
Abstract: An integration element including a shaft and a housing, wherein the housing includes a passage for the shaft and the shaft includes connecting elements on the shaft ends which are accessible from outside the housing, these elements providing a rotationally-fixed connection to connecting shafts. The housing has at least one connection for fastening to a connection structure and the shaft together with the housing delimits a measuring equipment space for receiving measuring equipment. The housing is formed by at least two housing parts detachably connected to each other, said housing parts being designed to be separated around the full extent of their circumference surrounding the shaft to allow access to the measuring equipment space. The housing has bearing seats for shaft bearings and these shaft bearings support the shaft in a rotatable manner with respect to the housing.
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公开(公告)号：US10036673B2
公开(公告)日：2018-07-31
申请号：US14443603
申请日：2013-12-12
Applicant: Torque And More (TAM) GmbH
Inventor： Lutz May
Abstract: Active Force measuring device for measuring a force impact onto a ferromagnetic object comprising a flux concentrator having a first and second ends facing the ferromagnetic object to me measured, a magnetic field generation coil arrangement being wound around the flux concentrator, wherein the magnetic field generating coil arrangement is adapted for generating a magnetic field having a main generating direction between the first end and the second end, and a magnetic field sensing arrangement, wherein the magnetic field sensing arrangement is arranged between the first end and the second end.
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公开(公告)号：US09999356B2
公开(公告)日：2018-06-19
申请号：US14813783
申请日：2015-07-30
Applicant: Kabushiki Kaisha Toshiba
Inventor： Alexander Devin Giddings , Hideaki Fukuzawa , Yoshihiko Fuji , Hiromi Yuasa , Michiko Hara , Shuichi Murakami
CPC classification number: A61B5/021 , A61B5/02108 , G01B7/24 , G01L1/125
Abstract: A strain sensor element comprises a laminated film which has a magnetic free layer, a spacer layer, and a magnetic reference layer. The free layer has a variable magnetization direction and a out-of-plane magnetization direction. The reference layer has a variable magnetization direction which is pinned more strongly than the magnetization of the free layer. The spacer layer provided between the free layer and the reference layer. A pair of electrodes is provided with a plane of the laminated film. A substrate is provided with either of the pair electrodes and can be strained. The rotation angle of the magnetization of the free layer is different from the rotation angle of the magnetization of the reference layer when the substrate is distorted. Electrical resistance is changed depending on the magnetization angle between the free layer and the reference layer, which allows the element to operate as a strain sensor.
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公开(公告)号：US20180149529A1
公开(公告)日：2018-05-31
申请号：US15574627
申请日：2016-05-04
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Stephan Neuschaefer-Rube , Jan Matysik , Markus Neubauer , Christian Schmitt , Thomas Dirnberger
Abstract: An arrangement for measuring a force and/or a torque using the inverse-magnetostrictive effect includes a workpiece made from steel as a primary sensor for a measurement of a force and/or a torque using the inverse-magnetostrictive effect. The arrangement includes a machine element on which the force or the torque acts, which causes mechanical stress and the machine element is usually slightly deformed. The machine element is formed of steel and has at least one magnetostrictive area for a magnetization, which forms a primary sensor for measuring the force and/or the torque. The arrangement further includes at least one magnetic field sensor for measuring a magnetic field caused by the magnetization and also by the force and/or by the torque. The magnetic field sensor forms a secondary sensor for measuring the force and/or the torque. The machine element is formed by a plastically shaped workpiece, wherein it undergoes a plastic shape forming process through which the machine element is formed for transmitting the force and/or the torque.
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公开(公告)号：US20180013270A1
公开(公告)日：2018-01-11
申请号：US15641936
申请日：2017-07-05
Applicant: Greenlee Textron Inc.
Inventor： John Michael Jubeck , Daniel John Marben , John Siegfried Tobias
Abstract: A system and method include a gauge device and one or more of a communication device or a pulling assembly. The gauge device may be configured to send a message to display on one or more of the communication device or pulling assembly. Additionally or alternatively, the gauge device may be configured to send the message to be processed by pulling assembly to determine and perform a pull action. Additionally or alternatively, the gauge device may be configured to send the message to be executed by the pulling assembly to perform a pull action.
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