发明名称 |
Linear capacitance measurement circuit |
摘要 |
A capacitive measurement circuit detects a change in capacitance between a variable capacitor and a fixed reference capacitor in a bridge network and provides feedback current to null-balance the bridge. Voltage that controls the feedback current is substantially linearly proportional to changes in capacitance over a wide range.
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申请公布号 |
US2001008478(A1) |
申请公布日期 |
2001.07.19 |
申请号 |
US20010794198 |
申请日期 |
2001.02.27 |
申请人 |
MCINTOSH ROBERT B.;HILL WINFIELD |
发明人 |
MCINTOSH ROBERT B.;HILL WINFIELD |
分类号 |
G01D5/241;G01L9/00;G01L9/12;G01L11/00;G01P15/125;G01P15/13;G01R27/26;(IPC1-7):H01H73/00 |
主分类号 |
G01D5/241 |
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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