Method of manufacturing a combustibles sensor

Details Method of manufacturing a combustibles sensor Method of manufacturing a combustibles sensor

G - Physics

01

N

26/112

G01N 31/12 (2006.01) G01N 25/32 (2006.01)

Patent

CA 1170437

- 13 - Case 4350 METHOD OF MANUFACTURING A COMBUSTIBLES SENSOR ABSTRACT OF THE DISCLOSURE A method of manufacturing a differential thermo- couple combustibles sensor is disclosed which makes the sensor relatively insensitive to sulfur poisoning. To accomplish this the catalytic thermocouple junction of a catalytic-non-catalytic junction pair is formed by coating it with a gel to increase the surface area and then with a chloroplatinic acid solution to make it catalytic. The catalytic junction is then treated with H2S to achieve a high catalyst surface area.

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