Combustible gases detector

Details Combustible gases detector Combustible gases detector

G - Physics

01

N

73/63

G01N 25/32 (2006.01)

Patent

CA 1087868

ABSTRACT A differential thermocouple combustible gases detector is provided by coating one thermocouple junction of a differential thermocouple pair with a catalyst and the other thermocouple junction with a non-catalyst. Heated combustible gases react with the catalyst to liberate heat to the catalyst coated thermocouple junction in proportion to the concentration of combustible gases and proportionally raise the temperature of that junction above the non-catalyst coated junction. The out- put signal from the differential thermocouple device is thus a signal indicative of the concentration of combustible gases.

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