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公开(公告)号：US11992383B2
公开(公告)日：2024-05-28
申请号：US17658183
申请日：2022-04-06
Applicant: uLab Systems, Inc.
Inventor： Henry Cao
CPC classification number: A61C7/002 , A61C7/146 , A61C7/20 , A61C9/0053 , A61C13/081 , G01L5/0038 , G01L5/0042 , A61C2007/004
Abstract: Systems for force measurement upon orthodontic appliances are described. Generally, a system for measuring a force or moment imparted by an orthodontic appliance may comprise a dentition mold having one or more target teeth each formed upon a fixture and which is movable independently of the dentition mold, a measurement sensor coupled to the fixture, and a processor in communication with the measurement sensor. An orthodontic appliance may be configured for placement upon the dentition mold where the orthodontic appliance imparts a force or moment upon the one or more target teeth such that the force or moment is transmitted to the measurement sensor via the fixture for measurement of the force or moment.
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公开(公告)号：US20240140556A1
公开(公告)日：2024-05-02
申请号：US18221801
申请日：2023-07-13
Applicant: MOBILETRON ELECTRONICS CO., LTD.
Inventor： Cheng-I Teng , Yi-Hsing Hsu
CPC classification number: B62M6/55 , B62J45/421 , B62M6/50 , B62M11/02 , G01L5/0042 , H02K7/116 , H02K11/33 , B62J45/411
Abstract: A coaxial mid-drive power device of a bicycle includes a reducing structure and a hollow shaft motor engaged with the reducing structure that are disposed in a motor base. An output end of the reducing structure is operatively coupled with a one-way bearing bracket with a sprocket base via a one-way bearing. A crank spindle engaged with the one-way bearing bracket through another one-way bearing penetrates through the motor base. The two one-way bearings respectively have opposite rotation directions and are respectively located on different sides, i.e., an inside and an outside, of the one-way bearing bracket. A strain gauge disposed on the crank spindle is electrically connected to an annular conductive rail assembly engaged with the crank spindle and an elastic sheet assembly on a control circuit board in the motor base, hence the strain gauge could directly obtain a change in a torque of the crank spindle.
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公开(公告)号：US11933688B2
公开(公告)日：2024-03-19
申请号：US17880275
申请日：2022-08-03
Applicant: Hyundai Motor Company , Kia Corporation , Dong Ho Yang
Inventor： Sang Seo Ahn , Jong Jun Kim , Dong Ho Yang
IPC: G01L5/00
CPC classification number: G01L5/0042
Abstract: Provided is a portable apparatus for measuring a manipulation force. The apparatus includes a manipulation force measurement unit configured to measure a manipulation force applied on a manipulated part in a first direction of pushing forward or pulling backward and measure a manipulation force in a second direction of moving toward left or right, and a controller configured to process the measured manipulation force to generate manipulation force information over time.
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公开(公告)号：US20240019325A1
公开(公告)日：2024-01-18
申请号：US18256883
申请日：2021-12-06
Inventor： Loïc TISSOT-DAGUETTE , Simon HENEIN , Michal SMRECZAK , Benoît DAGON
IPC: G01L5/00
CPC classification number: G01L5/0038 , G01L5/0042
Abstract: Disclosed is a flexure pivot based system being one of: a force sensor, a force limiting device arranged to exert a predetermined threshold force, a torque limiting device arranged to exert a predetermined threshold torque, a programmable mechanical memory, or an accelerometer, the flexure pivot based system including a substantially rigid frame supporting a lever by a suspension mechanism including: a first flexure extending from the frame to a junction with the lever; a second flexure extending from the frame to the junction at a first non-zero angle to the first flexure in a neutral position of the suspension mechanism; and a third flexure extending from the junction to a preloading system at a second non-zero angle to the first flexure and/or the second flexure in the neutral position, the preloading system applying a force in a direction substantially coaxial with the third flexure.
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公开(公告)号：US11788909B2
公开(公告)日：2023-10-17
申请号：US17798172
申请日：2020-03-05
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Atsushi Nakamura , Daisuke Iida , Hiroyuki Oshida , Tatsuya Okamoto , Tomokazu Oda , Yoshifumi Wakisaka
CPC classification number: G01L1/242 , G01L5/0042
Abstract: An object of the present disclosure is to provide a method and an apparatus for acquiring curvature and torsion using an inexpensive sensor medium. Disclosed is a measurement apparatus including a fiber ribbon including a plurality of coated fibers arranged in parallel, a strain measurement unit that measures strain amounts of the plurality of coated fibers, and an arithmetic processing unit that calculates curvature and torsion of the fiber ribbon using a strain amount of a coated fiber arranged in a middle portion of the plurality of coated fibers and a strain amount of a coated fiber arranged in a marginal portion of the plurality of coated fibers.
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公开(公告)号：US11650114B2
公开(公告)日：2023-05-16
申请号：US17330582
申请日：2021-05-26
Applicant: Shin Zu Shing Co., Ltd.
Inventor： Shen-Ding Chen , Po-Jung Chen , Ching-Hsiang Hsu , Jeng-Hung Tsai , King-Ho Tsai
CPC classification number: G01L5/0038 , G01L5/0042 , G01L5/24
Abstract: A torque detection device includes a base, a load sensing member, a push member, a transmission module, and a drive module. The push member has a first extension wall and a second extension wall. The transmission module includes two adjustable transmission sets each including a torque transmission part. The torque transmission part respectively rests on the first extension wall and the second extension wall of the push member. The torque transmission part of the transmission module applies a force to push and press the push member reciprocatingly. The push member transmits the force of the torque transmission part to the load sensing member which cooperates with an electronic device to measure the maximum static friction torque of a detected workpiece.
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公开(公告)号：US20180180399A1
公开(公告)日：2018-06-28
申请号：US15839136
申请日：2017-12-12
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Taro TAKAHASHI
CPC classification number: G01B7/30 , B25J9/1633 , B60G17/019 , B62D5/0463 , G01L3/109 , G01L5/0042 , G01L25/003 , G05B2219/39188
Abstract: A motor control system includes a motor, a rotational angle sensor that detects a rotational angle of a motor shaft of the motor, a torque sensor that detects shaft torsion torque between the motor shaft, and an output shaft fixed to a load member driven by the motor, and a motor controller that controls the motor. The motor controller estimates a rotational angle of the output shaft, based on the rotational angle of the motor shaft, the shaft torsion torque, and torsional rigidity obtained in advance with respect to a region between the motor shaft and the output shaft, and controls the motor, using the estimated rotational angle of the output shaft.
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公开(公告)号：US09995349B2
公开(公告)日：2018-06-12
申请号：US14909684
申请日：2014-08-11
Applicant: JTEKT CORPORATION
Inventor： Hideki Fujiwara
IPC: G01L3/00 , F16D41/063 , F16D41/07 , F03D15/00 , F16D48/00 , H02K7/00 , H02K7/18 , G01M13/02 , F03D9/25 , F16C41/00 , F16C19/28 , F16C33/58 , F16D41/06 , G01L5/00
CPC classification number: F16D41/063 , F03D9/25 , F03D15/00 , F03D15/10 , F03D80/70 , F05B2260/403 , F16C19/28 , F16C33/581 , F16C41/001 , F16C2360/31 , F16D41/07 , F16D48/00 , F16D2041/0603 , G01L3/1407 , G01L3/1435 , G01L3/1457 , G01L5/0019 , G01L5/0023 , G01L5/0042 , G01L5/0071 , G01M13/022 , H02K7/003 , H02K7/10 , H02K7/183 , Y02E10/72
Abstract: A rotation transmission device includes a one-way clutch which is provided between an output shaft of a speed increaser and an input shaft of a generator, which makes a connection between the output shaft and the input shaft to be rotatable integrally in a state in which a rotation speed of the output shaft is higher than that of the input shaft, and which cuts off the connection between the output shaft and the input shaft in a state in which the rotation speed of the output shaft is lower than that of the input shaft. The rotation transmission device further includes: a measurement section which measures a state of the one-way clutch which changes depending on a load exerted to the one-way clutch; and an acquisition section which acquires the load exerted to the one-way clutch on a basis of a measurement result of the measurement section.
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公开(公告)号：US09983078B2
公开(公告)日：2018-05-29
申请号：US15466483
申请日：2017-03-22
Applicant: Fisher Controls International LLC
Inventor： Shawn William Anderson
CPC classification number: G01L5/22 , F16K37/0083 , G01L5/0042 , G01N19/02 , G05B15/02 , G05B23/0283
Abstract: Methods and apparatus for analyzing effects of friction on process control devices are disclosed herein. An example method includes determining, by executing an instruction with at least one processor, a first value corresponding to friction associated with at least one of an actuator or a process control device to be operated by the actuator; determining a second value indicative of an effect of the friction on operation of the process control device via the actuator based on the first value corresponding to the friction and a first threshold value; and changing a force input to move a plug of the process control device 1) a distance or 2) a distance within a time period when the second value satisfies a second threshold value.
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公开(公告)号：US20170370203A1
公开(公告)日：2017-12-28
申请号：US15195534
申请日：2016-06-28
Applicant: Nabors Drilling Technologies USA, Inc.
Inventor： Mahmoud Hadi
IPC: E21B44/04 , G01L3/10 , E21B47/00 , G05B15/02 , E21B4/02 , E21B3/02 , E21B45/00 , E21B19/00 , E21B21/08
CPC classification number: E21B44/04 , E21B3/02 , E21B4/02 , E21B19/008 , E21B21/08 , E21B45/00 , E21B47/0006 , G01L3/10 , G01L5/0042 , G05B15/02
Abstract: The aspects described herein assist in mitigating vibrations arising from torsional energy accumulating on a drill string in a wellbore during drilling operations. A first sensor obtains torque measurement data at or near the top drive of the drilling rig. A second sensor may obtain weight on bit information. The controller receives the measured data, combines it with a first gain to obtain a first output value and a second gain to obtain a second output value. The first output value is provided to the top drive to adjust a speed of operation of the top drive, and the second output value is provided to the axial drive providing motion along a vertical axis of the drilling rig to adjust a speed of the vertical motion. In combination, the adjustments to the top drive and axial drive movements mitigate stick-slip in an automated manner more effectively than either individually.
