| 摘要 |
A vibration sensor includes casing, substrate, and elastic metal piece; two electrode areas separated by a separation zone being provided on the substrate; a vibration contact being provided on the separation zone; placement being executed by the metal piece on the substrate to contact or not to contact both electrode areas and produce connection or disconnection at the vibration contacts for selecting to turn on or off a power source and an electronic device connected to the vibration sensor and producing intermittent conduction by means of the sensor built in an object.
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