发明名称 |
Surface mount type package unit |
摘要 |
An acceleration sensor is disclosed which includes a capacitance-type acceleration detection element mounted on a ceramic base plate. The element comprises a movable electrode mounted between a pair of fixed electrodes. Acceleration of the sensor in a measurement direction causes the movable electrode to move relative to the fixed electrodes and the element has opposite ends in a direction perpendicular to the measurement direction. The acceleration detection element is mounted on the base at a first one of the opposite ends. Accordingly, the mounting surface of the acceleration sensor is parallel to the direction of acceleration to be detected. Thus the acceleration sensor can be surface-mounted on a printed board, and more be easily mounted in an automobile air bag control system or the like. |
申请公布号 |
US6388887(B1) |
申请公布日期 |
2002.05.14 |
申请号 |
US20000722564 |
申请日期 |
2000.11.28 |
申请人 |
HITACHI, LTD. |
发明人 |
MATSUMOTO MASAHIRO;SUZUKI SEIKOU;MIKI MASAYUKI |
分类号 |
G01P9/04;G01P15/125;G01P15/18;(IPC1-7):H05K7/02 |
主分类号 |
G01P9/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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