Capacitive pressure sensor with moving or shape-changing dielectric
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United States of America Patent
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Sep 26, 2000
Grant Date -
N/A
app pub date -
Mar 4, 1998
filing date -
Mar 4, 1998
priority date (Note) -
Expired
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Abstract
A pressure sensor system includes a first conductive surface electrically isolated from a second conductive surface. A dielectric material is interposed between the first conductive surface and the second conductive surface. The dielectric material is movable with respect to at least one of the first conductive surface and the second conductive surface in response to a change in pressure exerted on the pressure sensor. A measurement system is connected to at least one of the first conductive surface and the second conductive surface to measure the capacitance between the first conductive surface and the second conductive surface representative of pressure.
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