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11. 发明授权

US11467005B2 Redundant VDT with DC interface 有权
公开(公告)号：US11467005B2
公开(公告)日：2022-10-11
申请号：US16665105
申请日：2019-10-28
申请人： Ratier-Figeac SAS
发明人： Cédric Antraygue
IPC分类号： G01D5/22 , H01F21/04
摘要： A position sensing system for sensing a position of an input shaft of a variable differential transformer (VDT), comprising said VDT, which comprises first and second AC signal output means that are configured to output a first AC output signal and a second AC output signal respectively. The sensing system further comprises AC/DC converting means configured to convert said first AC output signal to a first DC output signal and an AC/DC converting means configured to convert said second AC output signal to a second DC signal. The first and second DC output signals each indicate an individual position of said input shaft.

12. 发明授权

US11460326B2 Inductive position sensing apparatus and method for the same 有权
公开(公告)号：US11460326B2
公开(公告)日：2022-10-04
申请号：US16943260
申请日：2020-07-30
申请人： AB Elektronik GMBH
发明人： Paul Smith , David Witts
IPC分类号： G01D5/22 , H01F5/00 , G01B7/00 , G01D5/20
摘要： An inductive position sensor may be configured to detect relative position between a first member and a second member. The inductive position sensor may include a transmit aerial configured to be disposed on the first member. The inductive position sensor may include a receive aerial configured to be disposed on the first member. The inductive position sensor may include processing circuitry configured to provide one or more signals indicative of the relative position between the first member and the second member based on a receive signal induced in the receive aerial resulting from a signal provided to the transmit aerial. One or more of the transmit aerial and the receive aerial may include one or more windings. A shape of the one or more windings can be a combination of a sinusoidal waveform and one or more scaled harmonics of the sinusoidal waveform.

13. 发明申请

US20220255414A1 LENS DRIVING DEVICE, CAMERA MODULE, AND OPTICAL APPARATUS 有权
公开(公告)号：US20220255414A1
公开(公告)日：2022-08-11
申请号：US17628333
申请日：2020-08-06
申请人： LG INNOTEK CO., LTD.
发明人： Jung Cheol KIM , Tae Bong PARK
IPC分类号： H02K41/035 , G02B27/64 , G03B13/36 , G03B30/00 , G03B5/00 , G01D5/22 , G01D5/14 , G01D5/16 , H04N5/225
摘要： The present embodiment relates to a lens driving device which includes: a substrate; a housing; a bobbin; a sensing coil; a first magnet; a second magnet; a third magnet; a dummy member; a first coil that includes a first coil unit and a second coil unit; and a first position sensor that is disposed on the substrate and corresponds to the sensing coil, wherein the first magnet and the second magnet are positioned on opposite sides from each other, the third magnet and the dummy member are positioned on opposite sides from each other, the sensing coil is provided with a driving signal, and the first position sensor senses the strength of the magnetic field of the sensing coil and outputs an output signal.

14. 发明授权

US11385078B2 Rotation sensing apparatus 有权
公开(公告)号：US11385078B2
公开(公告)日：2022-07-12
申请号：US16532836
申请日：2019-08-06
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD.
发明人： Yong Woon Ji , Joo Yul Ko
IPC分类号： G01D5/22
摘要： A rotation sensing apparatus includes a detected part including a first pattern portion with a plurality of first patterns and a second pattern portion with a plurality of second patterns; a first sensor disposed opposite to the first pattern portion; a second sensor disposed opposite to the second pattern portion; a third sensor disposed at an angle from the first sensor and disposed opposite to the first pattern portion; a fourth sensor disposed at an angle from the second sensor and disposed opposite to the second pattern portion; and a rotation information calculation circuit to calculate rotation information regarding rotation of a rotating body based on first, second, third, and fourth oscillation signals associated with outputs of the first, second, third, and fourth sensors and to compensate for nonlinearity of a differential signal generated based on the first, second, third, and fourth oscillation signals.

15. 发明授权

US11360133B2 Sinusoidal harmonic nulling 有权
公开(公告)号：US11360133B2
公开(公告)日：2022-06-14
申请号：US16722257
申请日：2019-12-20
申请人： Hamilton Sundstrand Corporation
发明人： Michael A. Wilson , Gary L. Hess
IPC分类号： G01R23/20 , G01D5/22 , G01D5/20 , G01R19/02
摘要： Systems, methods, and computer program products for sinusoidal nulling are provided. Aspects include transmitting, by a controller, an excitation signal to a first sensor, determining, by the controller, a target harmonic based at least on one or more characteristics of the excitation signal, receiving a return signal from the first sensor, sampling the return signal at a first sample rate based on the target harmonic, and adjusting a phase of the sampled return signal to null the target harmonic amplitude to form an adjusted return signal.

16. 发明授权

US11231296B2 Systems and methods for determining rotational position 有权
公开(公告)号：US11231296B2
公开(公告)日：2022-01-25
申请号：US15131706
申请日：2016-04-18
申请人： Hamilton Sundstrand Corporation
发明人： Gary L. Hess , Kanwalpreet Reen
IPC分类号： G01D5/22 , G01D5/20
摘要： A resolver system includes a rotatable primary winding, a secondary winding fixed relative to the primary winding, and an analog-to-digital converter electrically connected to the secondary winding. A control module is operatively connected to analog-to-digital converter and is responsive to instructions to apply an excitation voltage with an oscillating waveform to the primary winding, induce a secondary voltage using the secondary winding using the excitation voltage, and acquire a plurality of voltage measurements from the secondary winding separated by a time interval corresponding to π/3 of the excitation voltage oscillating waveform.

17. 发明申请

US20220003809A1 SENSOR CIRCUIT DIAGNOSIS 有权
公开(公告)号：US20220003809A1
公开(公告)日：2022-01-06
申请号：US16919402
申请日：2020-07-02
申请人： Baker Hughes Oilfield Operations LLC
发明人： Jiang Jianjun , Zhang Guijun , Wang Peipei , Daniel Zahi Abawi
IPC分类号： G01R31/28 , G01D5/22
摘要： A method includes receiving data characterizing an output of a sensor coupled to an industrial equipment. The output can include a sum of a first secondary coil and a voltage of a second secondary coil. The first secondary coil can be included in a first circuit and the second secondary coil can be included in second circuit configured within the sensor. The method can also include determining an integrity state of a circuit configured within the sensor. The integrity state can be determined based on the received data. The integrity state can identify a state of operation of the circuit configured within the sensor. The method can further include providing the integrity state. Related systems, techniques, and non-transitory computer readable mediums are also described.

18. 发明申请

US20210364324A1 METHOD FOR DETERMINING ROTATIONAL POSITION OF A ROTATING CAMSHAFT ON A RECIPROCATING ENGINE USING A TARGET WITH A PATTERN OF TEETH AND A COLLECTION OF DETECTION ALGORITHMS 有权
公开(公告)号：US20210364324A1
公开(公告)日：2021-11-25
申请号：US17011247
申请日：2020-09-03
申请人： Deere & Company
发明人： Brian D. McGee , Kristin A. Molstad , Gary J. Treichel , Rodney W. Kvalvog , Stephen B. Lukas , Thomas M. Johnson , Jeffrey L. England
IPC分类号： G01D5/14 , G01B7/30 , G01D5/22 , F02D41/00 , F02D41/30
摘要： Identifying position of a first rotating shaft may comprise a first position detection system and a second position detection system. A controller may be coupled to a first sensor and a second sensor and may identify the position of the first shaft using the identified shaft position from either the first detection system or the second detection system, whichever is identified faster. The first shaft may have a first wheel disposed thereon with targets and one or more gaps disposed about the first wheel. A second shaft may have a second wheel disposed thereon with targets and one or more gaps disposed thereon. The second wheel is in a fixed relationship relative to the first wheel. The first detection system may use data simultaneously from the first sensor and the second sensor to eliminate targets to determine position. The second detection system uses data only from the first sensor.

19. 发明授权

US11162817B2 Flux coupling sensor and target 有权
公开(公告)号：US11162817B2
公开(公告)日：2021-11-02
申请号：US16963333
申请日：2019-01-22
申请人： MELEXIS TECHNOLOGIES SA
发明人： Samuel Huber Lindenberger , Javier Bilbao De Mendizabal , Jan-Willem Burssens , Wolfram Kluge , Jorg Rudiger , Kevin Fahrni
IPC分类号： G01D5/22 , G01R33/00
摘要： An apparatus is arranged for sensing a position of a target, in particular for offset invariant sensing of the position of the target is described, as well as the respective target and the method. The apparatus comprises at least two sensor elements. At least one sensor element of the at least two sensor elements generates a magnetic field. At least one other sensor element of the at least two sensor elements receives the magnetic field and outputs at least one signal associated with the received magnetic field. The target affects a coupling of a magnetic flux of the magnetic field between the at least one sensor element generating the magnetic field and the at least one other sensor element receiving the magnetic field and wherein the target is non-rotational invariant.

20. 发明授权

US11156480B2 Induction arrangement 有权
公开(公告)号：US11156480B2
公开(公告)日：2021-10-26
申请号：US16309115
申请日：2017-06-13
申请人： Peter Haas
发明人： Peter Haas
IPC分类号： G01D5/20 , G01D5/22 , H01F27/28 , H01F5/00 , H02K11/20 , H01F27/24
摘要： The invention relates to a novel type of electric inductance arrangement for a series of applications in the field of distance measurement, sensor-based detection of objects, and construction of induction machines. The novelty consists in the type of inductance arrangement of the receiver or transmitter coil, said arrangement being designed in the form of a ladder rung arrangement, wherein the ladder spars short-circuit the rungs. The sum of all the short-circuit currents is an indicator of what is occurring in the surroundings of the arrangement. This could be changing magnetic fields caused by transmitter objects or additional ladder-rung systems acting as transmitters. Multiple such sensors and transmitters can be designed in the ladder-rung form, said sensors and transmitters being connected in parallel or in series according to the application under certain circumstances and if necessary assuming the excitation function by moving a conductor through which a direct current is flowing or by applying alternating currents. The aforementioned inductance arrangement results positively in that the coils can all have a completely crossover-free design and are therefore substantially simpler to technically implement for very different applications in electrical engineering. The applicability ranges from short-range distance measuring devices and long-range object location to light detection and efficient induction machines with large or also very small constructions.

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