| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotational angle detection device with proper durability, which has no contacting and sliding part. SOLUTION: The device comprises a rotating body 21, a magnetically discontinuous part 22 in a rotation axis direction of the rotating body 21, which is placed along a peripheral face of the rotating body 21, and a detection means 24 detecting a position of the magnetically discontinuous part 22 in the rotation axis direction of the rotating body 21, where displacement angle from the detection means 24 in a rotation direction of the rotating body 21 is detected based on a position detected by the detection means 24. |
