发明名称 |
Capacitor based force sensor |
摘要 |
The invention provides a novel capacitive device configured to detect differences in an applied force over a continuous range of applied force that includes zero force. The device includes first and second electrodes that are spaced apart a predetermined distance from each other in a rest position. A measurable capacitance exists between the first and second electrodes. Structured elements having a predetermined maximum dimension are positioned in the device to control the predetermined distance between the first and second electrodes. An applied force to the device causes a change in the distance between the first and second electrodes and a related change in the capacitance that can be measured to determine information related to the applied force.
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申请公布号 |
US7148882(B2) |
申请公布日期 |
2006.12.12 |
申请号 |
US20030439447 |
申请日期 |
2003.05.16 |
申请人 |
3M INNOVATIE PROPERTIES COMPANY |
发明人 |
KAMRATH ROBERT F.;HAMERLY MICHAEL E.;WEAVER BILLY L. |
分类号 |
G09G5/00;G01L1/14 |
主分类号 |
G09G5/00 |
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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