Temperature sensor and sensing apparatus
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United States of America Patent
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May 14, 2002
Grant Date -
N/A
app pub date -
Sep 10, 1999
filing date -
Nov 6, 1996
priority date (Note) -
Expired
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Abstract
A sensing apparatus, a bolometer, and a bolometer sensor includes an inductor and capacitor connected as a resonant circuit. At least one of the capacitor or inductor has a temperature-dependent reactance, and the resonant frequency is dependent on the temperature of inductor or capacitor. The bolometer is suitable for fusion research and its resonant circuit includes a ferroelectric capacitor. The resonant frequency of the circuit may be tracked by means of a phase locked loop.
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