Capacitive transducer
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United States of America Patent
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-
Dec 28, 1999
Issued Date -
N/A
app pub date -
Apr 30, 1998
filing date -
Nov 16, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A capacitance transducer is provided herein for use in measuring loads. It includes a flexible first electrode, a flexible thin film solid dielectric and a fluid dielectric therebetween. A load which is applied to the transducer presses the first electrode, and the thin film dielectric against the second electrode, thereby squeezing out the fluid dielectric to increase the area of the electrodes that are in close proximity. This provides a capacitance transducer that has a significant linear response and an insignificant non-linear response.
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