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1.发明公开公开(公告)号：US20240230437A1
公开(公告)日：2024-07-11
申请号：US18151513
申请日：2023-01-09
Applicant: General Electric Company
Inventor： Bradley Alan Bauer , Brendon Matthew Leeker , Joseph Alfred Iannotti , Glen Peter Koste , Jason Case
IPC: G01L3/10
CPC classification number: G01L3/10
Abstract: A method for measuring shaft deflection in a turbomachine includes communicating one or more signals from a controller to a plurality of sensing devices positioned on a shaft of a turbomachine across an airgap defined between a rotating antenna positioned around the shaft and a stationary antenna aligned with the rotating antenna in a radial direction to excite the plurality of sensing devices; receiving a parameter of the shaft in a plurality of circumferentially spaced locations from the excited plurality of sensing devices; determining a magnitude of a deflection in the shaft as a function of the parameter of the shaft in the plurality of circumferentially spaced locations; and adjusting a startup sequence or a motoring sequence of the turbomachine based on the magnitude of the deflection
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公开(公告)号：US20240183729A1
公开(公告)日：2024-06-06
申请号：US18509982
申请日：2023-11-15
Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
Inventor： Jung Jin LEE
IPC: G01L3/10
CPC classification number: G01L3/10
Abstract: The provided device is a torque testing tool for electric actuators, employing a potentiometer, load cell, and spring system to measure torque. It surpasses conventional leaf springs with its wider operational rotation range. The setup includes a potentiometer fixed at the electric actuator's shaft end, a vertically positioned torque arm, a rod connected to the torque arm with a load cell, and a spring system attached to the rod and a second bracket, all vertically aligned with the actuator's shaft. A control unit processes force data from the load cell and rotation angle data from the potentiometer to accurately calculate the electric actuator's torque. This innovative design ensures precise torque measurement, offering enhanced efficiency and versatility for various applications relying on electric actuators.
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公开(公告)号：US20240118168A1
公开(公告)日：2024-04-11
申请号：US18378172
申请日：2023-10-10
Applicant: NTN EUROPE
Inventor： Alexandre BAUDU
IPC: G01M13/021 , G01L3/10
CPC classification number: G01M13/021 , G01L3/10
Abstract: The invention relates to a system for determining a torque applied between two rotating members. The system includes a test body with a deformable structure arranged to transmit the torque while enabling an angular displacement according to the applied torque. The system includes two encoders each on a different rotating member and each capable of emitting a periodic signal representative of the rotational displacement of the corresponding member.
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公开(公告)号：US11953393B2
公开(公告)日：2024-04-09
申请号：US17598371
申请日：2020-03-16
Inventor： Felix Mandoux
Abstract: A method of measuring torque is provided in a six phase electrical motor which includes a motor-stator including two electrically independent stator winding arrangements which each have three combined windings such that the winding arrangements are symmetrical and offset by an angle to each other and such that each combined winding of the second stator arrangement has a corresponding combined winding in the first stator arrangement and offset thereto by an angle. The method includes a) determining the current in the three combined windings of the first stator arrangement and/or the current in the three combined windings of the second stator arrangement and b) determining the torque from the currents.
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公开(公告)号：US11733111B2
公开(公告)日：2023-08-22
申请号：US17349374
申请日：2021-06-16
Applicant: Baker Hughes Oilfield Operations LLC
Inventor： Daniel Farr , Lysle Turnbeaugh , Trevor Cowan
CPC classification number: G01L3/10 , G01L25/003 , G01H1/003
Abstract: A method for calibrating an output of a torsional vibration transducer can include: providing a torsional vibration transducer proximate to a body of a shaft configured to rotate along an axis of rotation, the torsional vibration transducer configured to measure a torsional vibration of the shaft; actuating the shaft to cause rotation of the shaft; while the shaft rotates, acquiring, using the torsional vibration transducer, a plurality of zero-stress measurements of the shaft across a plurality of gaps between the torsional vibration transducer and the shaft; calculating at least one calibration coefficient using the plurality of zero-stress measurements; and calibrating the output of the torsional vibration transducer according to the at least one calibration coefficient to reduce a sensitivity of the torsional vibration transducer to changes in gap between the torsional vibration transducer and the shaft when the torsional vibration of the shaft is measured.
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Patent Agency Ranking
公开(公告)号：US11698311B2
公开(公告)日：2023-07-11
申请号：US17509724
申请日：2021-10-25
Applicant: Infineon Technologies AG
Inventor： Alexander Schossmann , Alexander Bergmann , Franz Michael Darrer , Dirk Hammerschmidt , Christof Michenthaler
Abstract: A torque measurement system includes an outer rotational shaft and an inner rotational shaft both configured to rotate about a rotational axis. A rotation of the inner rotational shaft causes a rotation of the outer rotational shaft via a coupling structure. At least one torque applied to the inner rotational shaft is translated into a first torque-dependent angular shift between the shafts. A first metamaterial track is coupled to the outer rotational shaft and configured to co-rotate with the outer rotational shaft. A second metamaterial track is coupled to the inner rotational shaft and configured to co-rotate with the inner rotational shaft. The tracks are configured to convert an electro-magnetic transmit signal into a first electro-magnetic receive signal based on the first torque-dependent angular shift and a receiver is configured to receive the electro-magnetic receive signal and measure the at least one torque based on the electro-magnetic receive signal.
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公开(公告)号：US20190234813A1
公开(公告)日：2019-08-01
申请号：US15881237
申请日：2018-01-26
Applicant: The Boeing Company
Inventor： Michael Thomas FOX , Eric Anton HOWELL , Jeffrey Michael ROACH
CPC classification number: G01L1/048 , B64C13/02 , B64C13/24 , G01L1/22 , G01L1/2268 , G01L3/10 , G01L5/0071
Abstract: A force balance sensor including a mechanical strain amplification system including a sensor torsion member having a first end and a second end spaced from one another along a longitudinal axis of the sensor torsion member, at least one strain sensor coupled to the sensor torsion member between the first and second ends, a first torsional stiffening member coupled to the first end of the sensor torsion member, and a second torsional stiffening member coupled to the second end of the sensor torsion member, wherein the first torsional stiffening member and the second torsional stiffening member are coupled to a torque member.
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公开(公告)号：US20190041279A1
公开(公告)日：2019-02-07
申请号：US16151684
申请日：2018-10-04
Applicant: General Electric Company
Inventor： Pekka Tapani Sipila , Lam Arthur Campbell , Dan Tho Lu
CPC classification number: G01L1/125 , G01L1/12 , G01L1/127 , G01L3/10 , G01L3/102 , G01L3/105 , G01L9/16 , G01R15/205 , G01R33/091
Abstract: A system includes a magnetostrictive sensor. The magnetostrictive sensor includes a driving coil configured to receive a first driving current and to emit a first magnetic flux portion through a target and a second magnetic flux portion. The magnetostrictive sensor also includes a first sensing coil configured to receive the first magnetic flux portion and to transmit a signal based at least in part on the received first magnetic flux portion. The received first magnetic flux portion is based at least in part on a force on the target. The magnetostrictive sensor includes a magnetic shield disposed between the driving coil and the first sensing coil. The magnetic shield is configured to reduce the second magnetic flux portion received by the first sensing coil. The magnetic shield includes a composite with a conductive material and an insulating material, a metamaterial, or a mesh structure, or any combination thereof.
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公开(公告)号：US20180226565A1
公开(公告)日：2018-08-09
申请号：US15942183
申请日：2018-03-30
Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
Inventor： Hiroshi MATSUMOTO , Satomi ISHIKAWA
CPC classification number: H01L41/125 , B62D6/10 , B62M6/50 , G01L3/10 , G01L3/102 , G01L3/103 , G01L3/105 , H02N2/181
Abstract: A low-cost magnetostrictive torque sensor having a high sensitivity is obtained. A torque sensor 10 includes a substrate 12, a magnetostrictive portion 26, a magnetostrictive portion 28, a detection coil 18a, a detection coil 18b, a detection circuit 48, and a detection circuit 50. The substrate 12 has a tubular shape. Each of the magnetostrictive portions 26 and 28 is constituted by a plating film and disposed on the outer peripheral surface of the substrate 12. The detection coil 18a generates a magnetic flux passing through the magnetostrictive portion 26. The detection coil 18b generates a magnetic flux passing through the magnetostrictive portion 28. Each of the detection circuits 48 and 50 detects a potential between the detection coil 18a and the detection coil 18b.
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公开(公告)号：US20180224343A1
公开(公告)日：2018-08-09
申请号：US15749845
申请日：2015-10-22
Applicant: LS AUTOMOTIVE CORP.
Inventor： Chang-Nam JUN
Abstract: A torque sensor for a steering system according to an aspect of the present disclosure includes a first magnetic body having an open region and an unopened region arranged in an alternating manner along a circumference of a circular connecting member, the open region and the unopened region facing a magnet having N and S poles arranged in an alternating manner in a circular shape, the magnet installed at one end of a torsion bar, the first magnetic body connected to the other end of the torsion bar; a second magnetic body placed facing the magnet along an outer periphery of the magnet with the first magnetic body interposed between the second magnetic body and the magnet; a third magnetic body placed facing the first magnetic body while failing to face the magnet; and a magnetic sensing member placed between the second magnetic body and the third magnetic body.
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