Gas component detector

Details Gas component detector Gas component detector

1980-07-15

1981-10-13

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

23238E, 324 71SN, 338 22SD, 340634, 422 90, G01N 2704

Patent

active

042948010

ABSTRACT:
A gas component detector for detecting a gas component in the exhaust gases includes a detector element of a metal oxide whose electrical resistance value varies suddenly depending on the gas component. The detector element is held on an electrically insulating and heat-resistant holding body and furthermore, the detector element is enclosed by a catalyst carrier body which is fixed to the holding body by an inorganic bonding adhesive. Since the catalyst carrier body is of a porous heat-resistant metal oxide, the exhaust gases to be detected are permitted to pass through the catalyst carrier body and the gas component is oxidated by the aid of a catalyst material carried on the carrier body. The environment of the detector element thus becomes a weak reducing environment thereby preventing the detector element from being reduced and deteriorated.

REFERENCES:
patent: 3459765 (1976-05-01), Stewart
patent: 4001758 (1977-01-01), Esper
patent: 4066413 (1978-01-01), Segawa et al.
patent: 4099922 (1978-07-01), Yasuda et al.
patent: 4147513 (1979-04-01), Bienkowski et al.
patent: 4151503 (1979-04-01), Cermak

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