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公开(公告)号：US20240337513A1
公开(公告)日：2024-10-10
申请号：US18625343
申请日：2024-04-03
申请人： Proterial, Ltd.
发明人： Yohei SHIRAKAWA , Yuta SUGIYAMA
CPC分类号： G01D5/2451 , B62D5/0421 , B62D5/0442 , B62D15/0225 , G01D2205/10
摘要： A position detection device for detecting a position of a rack shaft having a rack teeth portion that meshes with a pinion gear in a part in an axial direction, is provided with a capacitance member that is arranged around a periphery of the rack shaft and forms a capacitive load together with the rack shaft, and a calculation unit that calculates the position of the rack shaft based on a capacitance between the rack shaft and the capacitance member. The capacitance member is arranged to face at least a part of the rack teeth portion. The capacitance changes in accordance with the position of the rack shaft.
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公开(公告)号：US20240240972A1
公开(公告)日：2024-07-18
申请号：US18411588
申请日：2024-01-12
CPC分类号： G01D5/2451 , H01F7/02 , H01F7/20
摘要： A position encoder transmitter (100) has a first magnet device (16, 101), preferably a permanent magnet, a settable second magnet device (102) that is fastened to or near the first magnet device and that can be an electromagnet, and a setting device (103-106) for the second magnet device that is adapted to cause or perform the setting of the second magnet device in accordance with information to be transmitted.
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公开(公告)号：US20240102831A1
公开(公告)日：2024-03-28
申请号：US18020625
申请日：2021-11-23
发明人： Jung Hwan OH
CPC分类号： G01D5/2451 , G01N29/0672 , G01N29/14
摘要： Disclosed are a device and a method for generating ultrasonic scan image information, which can convert a rotatory motion of a motor into a linear reciprocating motion of an ultrasonic probe to allow the ultrasonic probe to scan a subject at high speed, and rapidly generate an accurate three-dimensional ultrasonic image by using a trigger signal. The device for generating ultrasonic scan image information disclosed herein converts a unidirectional rotatory motion of a driving motor into a linear reciprocating motion of a ultrasonic probe connected to the driving motor and two-dimensionally scans a subject by the linear motion of the probe and a vertical motion perpendicular to the linear motion so as to generate an image of the subject. The device may comprise: an ultrasonic irradiation/reception unit for irradiating a subject with ultrasonic waves through a probe and receiving a reflection signal of the irradiated ultrasonic waves through the probe; a signal conversion unit for receiving the reflection signal and converting the reflection signal into a digital image signal; a main control unit for receiving the digital image signal and generating ultrasonic image information about the subject; and a trigger control unit for generating a trigger signal on the basis of motion information of the probe, wherein the ultrasonic image information is generated in synchronization with the trigger signal.
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公开(公告)号：US20240102787A1
公开(公告)日：2024-03-28
申请号：US18307974
申请日：2023-04-27
CPC分类号： G01B7/003 , G01D5/2053 , G01D5/2451
摘要： An inductive position-measuring device includes a scanning element and a graduation element movable relative thereto along a direction. The scanning element has an excitation conductor, and first and second receiver tracks each having a receiver conductor, which extends along the direction according to first and second periodic patterns, respectively, over a length. A graduation track has graduation structures formed of ridges and gaps. The ridges have different widths, or the gaps have different depths or different widths, in the direction. The receiver conductors of the first and second receiver tracks are configured to generate first and second signals having first and second period lengths, respectively, wherein n times the first period length equals m times the second period length, with m and n being relatively prime, and n times the first period length and m times the second period length both being less than or equal to the length.
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公开(公告)号：US11746834B2
公开(公告)日：2023-09-05
申请号：US17940327
申请日：2022-09-08
申请人： DENSO CORPORATION
发明人： Hitomi Honda , Yoshinori Inuzuka , Yusuke Kimura , Shinji Komatsu
IPC分类号： F16D27/118 , F16D48/06 , G01D5/245 , F16D27/14 , F16D11/14
CPC分类号： F16D27/118 , F16D48/064 , G01D5/2451 , F16D11/14 , F16D27/14 , F16D2300/18 , F16D2500/1022 , F16D2500/10462 , F16D2500/5012
摘要： A position detection device includes a magnetic detection element that is positioned radially outside a first clutch component portion and a second clutch component portion of a dog clutch around an axis. The magnetic detection element is provided between a first magnetic flux path portion and a second magnetic flux path portion. The magnetic detection element outputs a sensor signal indicating the direction of a magnetic flux passing between the first magnetic flux path portion and the second magnetic flux path portion. The magnetic detection element outputs a sensor signal indicating a position relationship between the first clutch component portion concerning a first hole portion as well as a first tooth portion and the second clutch component portion concerning the second hole portion as well as the second tooth portion, based on changes in magnetic flux directions depending on the position relationship in a rotation direction around the axis.
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公开(公告)号：US20230188022A1
公开(公告)日：2023-06-15
申请号：US18166098
申请日：2023-02-08
申请人： LG INNOTEK CO., LTD.
发明人： Shung Hun WOO , Nam Hoon KIM
IPC分类号： H02K29/08 , H02K11/215 , G01D5/245 , G01D5/14
CPC分类号： H02K29/08 , G01D5/142 , G01D5/145 , G01D5/2451 , H02K11/215 , G01D5/2452 , G01D5/2457 , H02K2213/03
摘要： The present invention provides an apparatus for sensing rotor location, the apparatus comprising: a central shaft; a magnet coupled to the central shaft; a sensor portion is disposed correspond to the magnet; wherein the sensor portion comprising a substrate, a first group including a first Hall sensor and a third Hall sensor disposed on the substrate, and a second group including a second Hall sensor and a fourth Hall sensor, the first Hall sensor and the third Hall sensor are arranged to overlap in a radial direction about the central shaft and the second Hall sensor and the fourth Hall sensor are arranged to overlap in a radial direction about the central shaft.
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公开(公告)号：US20190250214A1
公开(公告)日：2019-08-15
申请号：US15894577
申请日：2018-02-12
发明人： Scott W. Clark
CPC分类号： G01R31/34 , G01D3/022 , G01D5/147 , G01D5/2033 , G01D5/2451 , G01N27/9033
摘要： A system for magnetic field testing comprising a magnetic field generation device configured to generate a magnetic field in a rotor, a plurality of magnetic field measurement devices configured to measure a magnetic field at a predetermined position on the rotor, a drive mechanism configured to rotate the rotor and a test system configured to record the plurality of magnetic field measurements as a function of an angular position of the rotor.
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公开(公告)号：US20190107587A1
公开(公告)日：2019-04-11
申请号：US15729943
申请日：2017-10-11
发明人： Logan Stewart
CPC分类号： G01R33/096 , G01D5/142 , G01D5/2451 , G01D5/246 , G01R33/07 , H01L43/04
摘要： A magnetic field sensor includes a plurality of magnetic field sensing elements operable to generate magnetic field signals indicative of a magnetic field associated with an object, a plurality of channels coupled to receive the magnetic field signals and configured to generate a respective plurality of phase separated channel signals, and an output circuit coupled to receive the plurality of phase separated channel signals and configured to generate a sensor output signal including distinguishable pulses associated with the plurality of phase separated channel signals. The sensor output signal may include a first plurality of pulses associated with a first one of the phase separated channel signals and having a first characteristic and a second plurality of pulses associated with a second one of the phase separated channel signals and having a second characteristic different than the first characteristic, such as different signals levels and/or different pulse widths.
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9.发明申请公开(公告)号：US20180321060A1
公开(公告)日：2018-11-08
申请号：US15772279
申请日：2016-10-14
申请人： THK CO., LTD.
CPC分类号： G01D5/2451 , F16C29/005 , F16C29/04 , F16C29/0633 , F16C41/00 , F16C41/007 , F16C2233/00 , G01B7/003 , G01D5/147 , G01D5/24409 , G01D5/245
摘要： A position detection apparatus is provided which eliminates the necessity of space to affix a scale to a track member. A track member of a motion guide apparatus is provided with a through hole into which a fastening member to fasten the track member to a base can be inserted. A carriage that is movably assembled to the track member via a rolling element is provided with magnets generating a magnetic field toward the track member. Magnetic sensors that detect a change in the magnetic fields of the magnets with the travel of the magnets relative to the track member are placed within the magnetic fields of the magnets.
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公开(公告)号：US20180283905A1
公开(公告)日：2018-10-04
申请号：US15944972
申请日：2018-04-04
CPC分类号： G01D5/243 , G01D5/145 , G01D5/244 , G01D5/24404 , G01D5/2451
摘要： Magnetic field sensor devices, corresponding systems and corresponding methods are discussed where a plurality of magnetic field sensors senses a magnetic field. An evaluation circuit generates a first signal component associated with a periodicity of a magnetic field, and a second signal component at least for periods of the magnetic field exceeding a threshold period length, the second signal component having a resolution smaller than one half period of the magnetic field.
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