| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotation detecting sensor suitable for controlling an electric brake. SOLUTION: This rotation detecting sensor is provided with a rotator 3 driven by a motor 1 or the like and a board 7 which is arranged facing the rotator 3. A ring magnet 4 in which magnetic poles are arrange din the circumferential direction at first specified intervals is cocentrically arranged with a shaft core of the rotator, on the surface of the rotator 3 which surface faces the board. In positions facing the ring magnet, on the board surface facing the ring magnet 4, two magneto-electric converting elements 5, 6 are arranged at second specified intervals different from the first specified intervals. |
