Gas composition sensor

Details Gas composition sensor Gas composition sensor

1981-07-23

1984-10-23

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Gas chromatography

338 34, G01N 2712

Patent

active

044780672

ABSTRACT:
A gas composition sensor includes a gas sensor element having an electric resistance value which varies in accordance with the composition of exhaust gases to be sensed, and a pair of electrodes attached to the gas sensor element for detecting the electric resistance value, whereby the resistance value of the gas sensor element is detected to sense the composition of the exhaust gases. A layer of material substantially impervious to the gases is formed on the gas sensor element to extend between the electrodes and surround the electrodes and the layer is also formed on other portions of the electrodes exposed to the exhaust gases.

REFERENCES:
patent: 4210894 (1980-07-01), Nitta et al.
patent: 4288774 (1981-09-01), Takami et al.
patent: 4308518 (1981-12-01), Hattori et al.
patent: 4322968 (1982-04-01), Takami et al.

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