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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：US12088226B2
公开(公告)日：2024-09-10
申请号：US17631782
申请日：2020-07-22
发明人： Jared Frank , Kirk Pierce
CPC分类号： H02P23/14 , F03D17/00 , G01D5/2457 , G01D18/001 , G01P3/489 , G01P13/045 , H02K7/183
摘要： Provided is a method of estimation of rotor operational characteristics, in particular rotor speed, rotor azimuth and rotation direction, of a rotating rotor of a wind turbine, the method including: measuring pulse rising edge time and pulse falling edge time of pulses generated by each of multiple proximity sensors originating from multiple detection targets arranged on the rotor; estimating values of parameters associated with the sensors and/or targets, in particular parameters associated with the positioning and/or detection range of at least one sensor and/or the parameters associated with the positioning and/or size of at least one target, based on the measured pulse rising edge times and pulse falling edge times; estimating rotor operational characteristics, in particular a rotor speed and/or a rotor azimuth and/or a rotation direction, based on the measured pulse rising and/or falling edge times and/or the estimated values of parameters associated with the sensors and/or targets.
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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：US20240230380A9
公开(公告)日：2024-07-11
申请号：US18492990
申请日：2023-10-24
申请人： Dalmatic TNV A/S
发明人： Hans Hilmar DALL
IPC分类号： G01D5/245
CPC分类号： G01D5/2455
摘要： A rotary encoder comprises a sensor configured to measure an angle of a rotating shaft; and a controller configured to: determine a first angle of the rotating shaft at a first time; determine a second angle of the rotating shaft at a second time; calculate an angular velocity based on: 1) an angular difference between the first angle and the second angle; and 2) a time difference between the first time and the second time; and transmit an output packet comprising the angular velocity.
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5.发明公开公开(公告)号：US20240200987A1
公开(公告)日：2024-06-20
申请号：US18555516
申请日：2022-04-11
CPC分类号： G01D5/245 , H01F27/24 , H01F27/28 , G01D2205/26
摘要： Provided are a power generation element, an encoder, a method of manufacturing a magnetic member, and a signal acquisition method capable of reducing variations in generated power. Power generation element includes: magnetic member that produces a large Barkhausen effect by a change in an external magnetic field; and coil wound around magnetic member. Magnetic member includes first magnetic sensing part and second magnetic sensing part having softer magnetism than first magnetic sensing part. First magnetic sensing part is magnetized in a winding axis direction of coil, and a magnetization direction does not change due to a change in a direction of the external magnetic field.
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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：US11940303B2
公开(公告)日：2024-03-26
申请号：US16489029
申请日：2018-03-01
申请人： SONY CORPORATION
发明人： Tetsuya Narita , Masahiro Fujita
CPC分类号： G01D5/24419 , G01B7/30 , G01D5/2455 , G01R33/06 , G01D5/34794
摘要： There is provided a position detection device to suppress an influence of a signal distortion due to a processing error or the like, the position detection device including: a reference position calculation unit that calculates a reference position of a moving body on the basis of a first signal and a second signal, the first signal being detected from a first track provided on the moving body and having a scale of predetermined cycles, and the second signal being detected from a second track provided on the moving body and having a scale of cycles less than the predetermined cycles; a slit specifying unit that specifies a slit corresponding to a position of the moving body; an in-slit position calculation unit that calculates an in-slit position of the moving body in the specified slit; and a correction unit that corrects an absolute position of the moving body.
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公开(公告)号：US11879404B2
公开(公告)日：2024-01-23
申请号：US17416046
申请日：2019-12-19
CPC分类号： F02D41/009 , G01D5/2457 , G01M15/046
摘要： A current source sensor delivers detection information in the form of an intermediate signal by selectively applying a low-level or high-level current to a communication bus depending on the passage of a mobile target, the sensor including a sensitive portion detecting the passage of a of the mobile target, an electronic module controlling and shape signals coming from the sensitive portion, an embedded intelligence module designed, inter alia, to receive information from another sensor through a first signal present on the communication bus, the first signal being the sum of the abovementioned intermediate signal generated by the sensor and of another intermediate signal generated by the other sensor, wherein the embedded intelligence module is adapted to modify a first low level and a first high level of the intermediate signal, respectively, into a second low level and into a second high level depending on a the first signal.
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公开(公告)号：US20230375372A1
公开(公告)日：2023-11-23
申请号：US18248520
申请日：2020-11-20
发明人： Jochen Schmitt , Monsoon Dutt , Stephen Morris
IPC分类号： G01D5/245
CPC分类号： G01D5/2455 , G01D2205/26
摘要： The present disclosure provides a magnetoresistive quadrant detector for use in a magnetic sensing device comprising a magnetic multi-turn sensor and an angle turn sensor, in particular, an angle sensor configured to provide 180° absolute angle measurements, such as an anisotropic magnetoresistive (AMR) angle sensor. The quadrant detector is formed of at least two magnetoresistive elements, preferably giant magnetoresistive (GMR) elements, which may be integrated to the multi-turn sensor die or provided on a separate die within the sensor package. The magnetoresistive elements are configured to provide a unique combination of resistance states for each quadrant of magnetic field direction. This quadrant information can then be used to remedy any ambiguities in the multi-turn measurement without needing 360° absolute angle information from the single turn angle sensor.
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