Measuring and testing – Gas analysis – Gas chromatography
Patent
1985-04-23
1986-11-04
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Gas chromatography
338 34, G01N 2712
Patent
active
046204377
ABSTRACT:
A gas sensor has a heater circuit with a voltage-dividing element, and a voltage to energize the heater circuit is applied through a resistive lead wire element, while a sensor voltage to measure the resistance of a gas-sensitive element is branched from the heater circuit.
REFERENCES:
patent: 4413502 (1983-11-01), Ohta et al.
patent: 4535316 (1985-08-01), Wertheimer et al.
Kuroki Yoshiaki
Matsuura Toshitaka
Sekiya Toshifumi
Takami Akio
Kreitman Stephen A.
NGK Spark Plug Co. Ltd.
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