发明名称 |
Circuit arrangement for a capacitive acceleration sensor |
摘要 |
In a circuit arrangement, in particular for a capacitive acceleration sensor having a first capacitor and a second capacitor, the two capacitors have a common middle electrode, which is movably supported in dependence upon an acting acceleration. A position-control circuit applies a voltage to the outer electrodes of the capacitors so as to keep the capacitors equal in size. An a.c. voltage is applied to the middle electrode and the a.c. current adjusting itself at the capacitors is evaluated for purposes of position control.
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申请公布号 |
US5744717(A) |
申请公布日期 |
1998.04.28 |
申请号 |
US19960677674 |
申请日期 |
1996.07.08 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
TANTEN, LEO;FLEISCHER, ULRICH;BARTH, MICHAEL;MUELLER, BERND |
分类号 |
G01P15/125;(IPC1-7):G01P15/125 |
主分类号 |
G01P15/125 |
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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