Oxygen sensor

Details Oxygen sensor Oxygen sensor

1981-02-04

1982-11-16

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2758

Patent

active

043593747

ABSTRACT:
An oxygen sensor for detecting an oxygen concentration in a gas under test such as exhaust gas from an internal combustion engine of an automobile. The oxygen sensor comprises an oxygen concentration sensing element made of an oxygen ion conductive metal oxide which produces an electromotive force in accordance with a difference between an oxygen concentration in the gas under test and an oxygen concentration in a reference gas, a porous layer of refractory metal oxide formed on a surface of the oxygen concentration sensing element which is to be exposed to the gas under test, and an electrode formed thereon. The peel-off of the electrode is prevented and a high-response oxygen sensor is provided.

REFERENCES:
patent: 2872312 (1959-02-01), Eisenberg
patent: 3468780 (1969-09-01), Fischer
patent: 3843400 (1974-10-01), Radford et al.
patent: 3978006 (1976-08-01), Topp et al.
patent: 4021326 (1977-05-01), Pollner et al.
patent: 4107018 (1978-08-01), Bode et al.
patent: 4135012 (1979-01-01), Su
The Merck Index, p. 631, (1976).

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