| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact, lightweight, and highly sensitive magnetic sensor. SOLUTION: The magnetic sensor 1 is made of an oscillator 2 constituted of a magnetostrictive material and an elastic material. The oscillator 2 integrally and mechanically resonates, and the mechanical resonance frequency of the oscillator changes with the change in an external magnetic field 14, and the amount of the external magnetic field is computed, on the basis of the amount of change of the resonance frequency in the magnetic sensor 1. The oscillator 2 is provided with a support 13 for supporting its one end, to cause longitudinal oscillations or bending oscillations in the oscillator 2 in the magnetic sensor. COPYRIGHT: (C)2005,JPO&NCIPI
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