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公开(公告)号：US20220155102A1
公开(公告)日：2022-05-19
申请号：US17522432
申请日：2021-11-09
发明人： Eun Joong KIM
摘要： Disclosed is a contactless magnetic sensing system. Proposed is a sensing system in which multiple magnetic sensors are disposed at the center of a rotating magnet and rotation angles of the magnetic sensors disposed around a center point at intervals of an angle of 90 degrees can be extracted.
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公开(公告)号：US20220137158A1
公开(公告)日：2022-05-05
申请号：US17518774
申请日：2021-11-04
发明人： Eun Joong KIM
IPC分类号： G01R33/02
摘要： Disclosed are a contactless magnetic sensing system and method. Disclosed are a sensing system and method capable of extracting a rotation angle without a problem although the center axis of a rotating magnet is separated and disposed from an extension line in a detection direction of a Z-axis magnetic sensor or a center axis of the magnetic sensor.
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3.发明申请公开(公告)号：US20190195656A1
公开(公告)日：2019-06-27
申请号：US16204629
申请日：2018-11-29
发明人： Dong Yoon KIM , Seong Min CHOE , Eun Joong KIM , Joon Yul YUN
IPC分类号： G01D5/14
CPC分类号： G01D5/145
摘要： A rotation angle detecting method includes detecting a first rotation angle based on a first measured magnetic value received from a first hall element, detecting a first magnetic value received from a second hall element corresponding to the first detected rotation angle, adjusting a gain based on a first difference value between a second measured magnetic value received from the second hall element, in response to one of the magnetic pieces being rotated at the first rotation angle, and the first magnetic value, redetecting a second rotation angle by applying the gain to the first magnetic value and redetecting a second magnetic value received from the second hall element, corresponding to the second rotation angle, and outputting the second rotation angle as a confirmed rotation angle in response to a second difference value between the second magnetic value and the second measured magnetic value becoming less than a delta value.
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