| 摘要 |
PROBLEM TO BE SOLVED: To continuously detect variations of acceleration in response to levels of acceleration for the purpose of using the acceleration, and to accurately measure about 0-2G of small acceleration finely, by attracting a weight by attracting magnets to make the weight and the magnet function as a damper, and by varying properly intensity and a shape of the magnet, or mass and a shape of the weight to be combined. SOLUTION: A sliding shaft 4 mounted with a weight 2 and a detection magnet 3 is supported freely to be slidable only in its axial direction on a substrate 5, attracting magnets 6 are arranged in both sides of the weight 2, the weight 2 is attracted to respective magnets 6 sides, and magnetism sensing elements 10, 11 are provided on the substrate 5 to face orthogonally to the detection magnet 3 fixed to the sliding shaft 4. The magnet 3 mounted on the shaft 4 is positioned in a central part of the two magnetism detecting magnets 10, 11 opposed each other, at the time of rest. |
