| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact and highly sensitive magnetic body detecting element for detecting the movement of a magnetic body and an apparatus utilizing the element. SOLUTION: A part of a plate-like, thin, and film-like flexible piezoelectric body is fixed, and a permanent magnet is mounted to an unfixed movable part. A voltage generated in the piezoelectric body by the movement of the magnetic body passing in the vicinity is detected. |
