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公开(公告)号：US12130134B2
公开(公告)日：2024-10-29
申请号：US17971254
申请日：2022-10-21
发明人： Wolfram Kluge
IPC分类号： G01B7/30 , G01B7/14 , G01D5/14 , G01D5/20 , G01R33/00 , G01R33/06 , G01R33/07 , G01R33/09 , G06F15/00
摘要： A sensor circuit for determining an angular position of a rotating object configured for generating or modulating a magnetic field includes: a first sensor for providing a first sensor signal; a second sensor for providing a second sensor signal a signal correction block for receiving the first/second sensor signal or a signal derived therefrom as a first/second input signal, and for receiving a plurality of feedback signals; and configured for providing a first corrected signal and a second corrected signal; an angle calculation block configured for receiving the first and the second corrected signal, and for determining the angular position signal as a function of a ratio of the first and the second corrected signal; a feedback block configured for receiving the angular position signal, and for generating the plurality of feedback signals based on the angular position signal, with an improved linearity.
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公开(公告)号：US20240328827A1
公开(公告)日：2024-10-03
申请号：US18744014
申请日：2024-06-14
发明人： Kyungmin LEE , Jinsoo Choi , Sungbum Park , Sangwook Lee , Bohwan Choi
CPC分类号： G01D5/20 , G01R19/0092 , G01R25/00 , H05B6/1236
摘要： An induction device includes: a wireless power transmission circuit; a current sensor; and at least one processor connected to the wireless power transmission circuit and the current sensor, wherein the at least one processor is configured to output first power for detecting of an external device through the wireless power transmission circuit, identify a first phase of a first current by measuring the first current flowing through a transmission coil of the wireless power transmission circuit using the current sensor while outputting the first power, in a first state where the external device is not in proximity, identify a phase delay value between the first phase of the first current and a second phase of a second current, and identify a second state where the external device is in proximity when the identified phase delay value is equal to or greater than a designated threshold.
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公开(公告)号：US12092492B2
公开(公告)日：2024-09-17
申请号：US17912604
申请日：2021-03-01
发明人： Thilo Stopfer
摘要： The disclosure relates to an inductive linear displacement sensor that includes a primary coil and two secondary coils inductively coupled to the primary coil. The linear displacement sensor has a calibration coil inductively coupled to the primary coil. The calibration coil is arranged such that a signal produced by the calibration coil has only one zero crossing at the center of the linear displacement sensor.
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公开(公告)号：US20240271965A1
公开(公告)日：2024-08-15
申请号：US18441244
申请日：2024-02-14
申请人： KSR IP Holdings, LLC
发明人： Jaesung Kim , Martin Parks , Addison Copeland
摘要： Embodiments herein are directed to a position sensor. The position sensor includes an inductive sensor assembly, a secondary sensor, and a coupler member. The inductive sensor assembly includes a transmitter coil and at least one receiver coil located proximate to the transmitter coil. The at least one receiver coil generating a receiver signal when the transmitter coil is excited. The receiver signal being sensitive to a position of a part. The secondary sensor is positioned within an inner diameter of the transmitter coil. The coupler member is coupled to the part and configured to move with a movement of the part. The coupler member overlies at least a portion of the at least one receiver coil. The coupler member including a body, at least one projecting portion extending from the body and at least one magnet concentrically positioned with the body.
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公开(公告)号：US20240247988A1
公开(公告)日：2024-07-25
申请号：US18443539
申请日：2024-02-16
发明人： Udo Ausserlechner
CPC分类号： G01L3/105 , G01B7/30 , G01D5/20 , G01D5/2006 , G01D5/2053 , G01L5/0042 , G01L5/26
摘要： The described techniques are directed to inductive torque sensors that implement independent target coil and pickup coil systems. By utilizing the various principles of inductive angle sensors, and as a result of the specific physical arrangement of target coils, the inductive torque sensor may independently obtain a rotational position (i.e., mechanical angle) of the rotatable input shaft via one pickup coil system, and a rotational position (i.e., mechanical angle) of the rotatable output shaft via another pickup coil system. Combiner circuitry is also provided to calculate the torsion angle using the signals induced in each of two separate pickup coil systems. By using different k-fold symmetry periodicities in the target coils with respect to the coil configurations, the inductive torque sensor advantageously reduces or eliminates mutual coupling between the different target coil systems and provide robustness to stray or external electromagnetic fields.
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公开(公告)号：US12031850B2
公开(公告)日：2024-07-09
申请号：US17414377
申请日：2019-12-12
申请人： Magnisity Ltd.
发明人： Ron Barak , Ariel Birenbaum , Benjamin Greenburg
摘要： A magnetic localization system including a magnetic field generator that generates an alternating magnetic field with a maintained frequency; and a receiver comprising: a DC magnetometer to sense a local magnetic field, at least in part due to the generated magnetic field; and at least one processor that calculates a six-degrees-of-freedom (6DOF) position and orientation of the receiver relative to the generator, based on the sensed magnetic field and the maintained frequency, and optionally based on the momentary phase of the generated field. Optionally, the generator includes an actuator that applies a rotational motion; at least one magnet rotating about a first axis by the actuator; a magnetometer to sense a momentary rotation phase of the at least one magnet; and a controller to maintain a desired rotation frequency of the at least one magnet. Optionally, the generator communicates the maintained rotation frequency and optionally the sensed momentary phase.
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公开(公告)号：US20240222047A1
公开(公告)日：2024-07-04
申请号：US18125422
申请日：2023-03-23
CPC分类号： H01H15/10 , G01D5/20 , H01F17/0006 , H01H15/025
摘要： A circuit breaker assembly can include a mechanism configured to be actuated by an operator toward a first position. The mechanism can be configured to move between the first position and a second position to change a state of a contactor between a closed state and an open state. The assembly can include a position sensor system configured to sense a position of the mechanism between the first position and the second position.
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公开(公告)号：US12025664B2
公开(公告)日：2024-07-02
申请号：US17871026
申请日：2022-07-22
申请人： ABB Schweiz AG
发明人： Vadim Migunov , Aydin Boyaci , Adrian Hozoi , Gianluca Cortinovis
IPC分类号： G01R31/327 , G01D5/20 , H01H1/14 , H01H3/32
CPC分类号： G01R31/327 , G01D5/20 , H01H1/14 , H01H3/32
摘要： A monitoring system includes a frame, a fixed contact, a moveable contact, a drive mechanism, and a linkage mechanism, wherein the fixed contact is fixed in position with respect to the frame, and wherein the linkage mechanism is coupled to the drive and the moveable contact, and wherein activation of the drive is configured to move the linkage mechanism such that the moveable contact is moved towards or away from the fixed contact, and wherein the monitoring system comprises a sensor system having a position sensor and a processor, the position sensor configured to be positioned with respect to the frame and the linkage mechanism such that lateral movement of a part of the linkage mechanism generates at least one displacement signal; and the processor configured to convert the at least one displacement signal to a displacement movement of the moveable contact toward or away from the fixed contact.
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公开(公告)号：US20240192030A1
公开(公告)日：2024-06-13
申请号：US18532118
申请日：2023-12-07
发明人： Krishan Kant , David L. Trumper
摘要： A position sensor with six degrees of freedom (DoF) measurement capability may be used for position sensing of the rotor in a bearingless slice motor to enable active control. The sensor is designed to fit entirely under the rotor and operates by accessing the rotor bottom surface only, enabling packaging of the pump on the top of the rotor. The sensor has two parts; both operate using eddy currents. One of these parts measures the two radial DoF of the rotor. The other part measures the axial, angular rotation and tip/tilt DoF. The sensor utilizes a conductive target fixed to the underside of the rotor. The design and fabrication of the sensor along with the signal processing methods are described.
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公开(公告)号：US12007235B2
公开(公告)日：2024-06-11
申请号：US17633822
申请日：2020-08-05
申请人： SMC CORPORATION
发明人： Ryuichi Masui , Naohiro Ishizawa
摘要： A magnetic encoder is provided with a first member including a first wall part that has formed therein an insertion through-hole through which a rotary body is passed, and a second member including a second wall part. A permanent magnet and a magnetic sensor for detecting a change in the magnetic field formed by the permanent magnet are disposed between the first wall part and the second wall part. In this configuration, the first member and the second member are composed of a soft steel that contains at most 3.0 wt % of carbon.
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