Sensor interrogation
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United States of America Patent
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May 22, 2001
Grant Date -
N/A
app pub date -
May 13, 1998
filing date -
Nov 16, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a method for interrogating a sensor comprising the steps: applying a periodic electrical signal to the sensor; obtaining a signal therefrom; and performing an operation on the obtained signal to obtain the sensor response at a plurality of frequencies, said operation including a transformation to the frequency domain of said signal or a quantity related to said signal.
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