Dielectric measuring systems
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United States of America Patent
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-
Apr 9, 1985
Grant Date -
N/A
app pub date -
Jul 15, 1982
filing date -
Jul 15, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A capacitive transducer which comprises a pair of joined-together thin-film capacitors and a fluid-impervious container. The container may be filled with a standard solution of known composition. One of the two thin-film capacitors is immersed in the standard solution inside the container while the other is situated outside the container. The entire transducer may be immersed in a sample, and the capacitance of the outside capacitor, which is dependent on the dielectric constant of the sample, may be compared with that of the inside capacitor after the standard solution has reached thermal equilibrium with the sample.
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