发明名称 |
Solid-state micro proximity sensor |
摘要 |
A solid-state fringe effect capacitive proximity sensor is described which lends itself to use for surface mounting and other space constrained applications. The sensor comprises an insulating substrate having a plurality of sensing electrodes formed thereon and without any screen elements therebetween. The electrodes are adapted to measure the proximity distance of a target object (conductive or non-conductive) by means of the fringe capacitance effect created between the electrodes. Capacitance measurement processing circuitry is electrically connected to the plurality of sensory electrodes.
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申请公布号 |
US5512836(A) |
申请公布日期 |
1996.04.30 |
申请号 |
US19940280799 |
申请日期 |
1994.07.26 |
申请人 |
CHEN, ZHENHAI;LUO, REN C. |
发明人 |
CHEN, ZHENHAI;LUO, REN C. |
分类号 |
G01B7/02;G01D5/24;G01V3/08;H03K17/955;H03K17/96;(IPC1-7):G01R27/26 |
主分类号 |
G01B7/02 |
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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