G - Physics – 01 – N
Patent
G - Physics
01
N
324/29.6
G01N 27/12 (2006.01) G01N 27/18 (2006.01)
Patent
CA 1156310
Title of the Invention Sensor Control Circuit Abstract of the Disclosure A sensor control circuit for detecting water vapor, various gases, etc. The sensor control circuit includes a sensor element whose impedance varies according to the concen- tration of water vapor, gas or the like and further includes a heating element for heating said sensor element, the heating element being integrally disposed with the sensor element. The aforementioned integrated structure precludes entry of the electric signal applied to the heating element into the impe- dance detection signal of the sensor element, thus ensuring an accurate detection of the impedance of the sensor element.
355288
Fetherstonhaugh & Co.
Matsushita Electric Industrial Co. Ltd.
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