发明名称 |
Capacitance elastomeric low pressure sensor. |
摘要 |
<p>A capacitance elastomeric pressure sensor includes top and bottom mounting plates arranged to support a pair of electrode layers. The first electrode layer is supported on the upper surface of a dielectric disc held by an upper mounting plate. The second electrode layer is located beneath the disc and includes a conductive elastomeric layer overlying an elastomeric support layer. In the preferred embodiment, the elastomer is a silicone elastomer and the conductive layer is formed by admixing a conductive carbon powder with the silicone. The sensor is particularly effective in sensing pressure changes in this low range, e.g. 0-1 inch of water. In the most preferred embodiment the elastomeric layer is prestrained for temperature compensation. <IMAGE></p> |
申请公布号 |
EP0476309(A2) |
申请公布日期 |
1992.03.25 |
申请号 |
EP19910113715 |
申请日期 |
1991.08.16 |
申请人 |
JOHNSON SERVICE COMPANY |
发明人 |
COLLA, JEANNINE O.;THOMA, PAUL EDWARD;OMAN, GARY FRANCIS;FROEHLING, PAUL HAROLD |
分类号 |
G01L1/20;G01L1/14;G01L9/00;G01L9/12 |
主分类号 |
G01L1/20 |
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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