Rotation detection device having detector and signal processor
A rotation detection device includes: a detector arranged with a gap to a rotating body in which rotation position information is periodically provided at regular intervals, and detecting a magnetic change as a rotation position of the rotating body; and a signal processor acquiring the rotation pos...
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Format | Patent |
Language | English |
Published |
06.12.2022
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Subjects | |
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Abstract | A rotation detection device includes: a detector arranged with a gap to a rotating body in which rotation position information is periodically provided at regular intervals, and detecting a magnetic change as a rotation position of the rotating body; and a signal processor acquiring the rotation position information. The detector has first and second magnetic elements arranged with an interval of a/2 in a rotation direction. Each regular interval is defined as a. The first magnetic element outputs a first signal having a period corresponding to the regular intervals. The second magnetic element outputs a second signal having an opposite phase to the first signal and the period. The signal processor acquires a differential signal between the first and second signals as the rotation position information. |
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AbstractList | A rotation detection device includes: a detector arranged with a gap to a rotating body in which rotation position information is periodically provided at regular intervals, and detecting a magnetic change as a rotation position of the rotating body; and a signal processor acquiring the rotation position information. The detector has first and second magnetic elements arranged with an interval of a/2 in a rotation direction. Each regular interval is defined as a. The first magnetic element outputs a first signal having a period corresponding to the regular intervals. The second magnetic element outputs a second signal having an opposite phase to the first signal and the period. The signal processor acquires a differential signal between the first and second signals as the rotation position information. |
Author | Kobayashi, Atsushi Makita, Michihiro Kariya, Yusuke |
Author_xml | – fullname: Kariya, Yusuke – fullname: Kobayashi, Atsushi – fullname: Makita, Michihiro |
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Notes | Application Number: US202117331722 |
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Snippet | A rotation detection device includes: a detector arranged with a gap to a rotating body in which rotation position information is periodically provided at... |
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Title | Rotation detection device having detector and signal processor |
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