| 摘要 |
An acceleration switch includes: a mass body having a space inside; an arc-like beam for supporting the mass body, the arc-like beam being disposed so as to surround the mass body; a support portion disposed at a periphery of the mass body in a state of fixing the arc-like beam; and a counter electrode disposed in the space inside the mass body, for detecting a contact with the mass body. The number of the beams for supporting the mass body is one. A distance between an inner side surface of the mass body and an outer side surface of the counter electrode, namely an electrode interval, is 1 μm or more and 20 μm or less. |
