| 摘要 |
PROBLEM TO BE SOLVED: To provide an acceleration sensor having a more simple structure for more accurately detecting vibrations or shocks in all directions and a safety device which outputs an emergency stop signal or temporary stop to outside according to the degree of vibration, shock and inclination, using the sensor. SOLUTION: The sensor is composed of a ball movably mounted on the surface center of a table recessed circular taper in a vessel, a conductive film laid on the inner wall of the vessel, a spacer laid on the vessel bottom, having a hole for vertically guiding a support projecting on the backside center of the table, an elastic body such as spring, etc. disposed between the spacer and the table, a conductive film laid on the vessel bottom and a signal processor. COPYRIGHT: (C)2005,JPO&NCIPI
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