Title:
POSITION DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/004226
Kind Code:
A1
Abstract:
According to the present invention, a magnetic sensor (7) can detect a magnetic field applied from a position detecting magnet (6) that moves relatively when an optical reflective element rotates. The position detecting magnet (6) can pass through a reference position (B) when a rotary shaft (C), a center (7c) of the magnetic sensor (7), and a center (6c) of the position detecting magnet (6) are located side by side on a straight line, as the optical reflective element rotates, when viewed from an axial direction of the rotary shaft (C). The magnetic sensor (7) is disposed inside an XZ plane including a magnetizing direction (M) passing through the center (6c) of the position detecting magnet (6) located inside the reference position and an axial direction of the rotary shaft (C).
Inventors:
NAKAMURA DAISUKE (JP)
SUGIMOTO TAKUYA (JP)
ITO YOSHIHIRO (JP)
SUGIMOTO TAKUYA (JP)
ITO YOSHIHIRO (JP)
Application Number:
PCT/JP2021/020599
Publication Date:
January 06, 2022
Filing Date:
May 31, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01D5/16
Foreign References:
| JP2010181642A | 2010-08-19 | |||
| JP2019146061A | 2019-08-29 | |||
| JPH03112441U | 1991-11-18 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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