Oxygen concentration-sensing device and the method of producing

Details Oxygen concentration-sensing device and the method of producing Oxygen concentration-sensing device and the method of producing

1983-10-11

1984-10-09

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204429, 427 34, 4271264, G01N 2758, B05D 112

Patent

active

044760086

ABSTRACT:
An oxygen gas concentration-sensing device comprises a solid electrolyte body which is prepared from an oxygen ion-permeable metal oxide and whose first surface is exposed to the gas to be sensed and the second surface is exposed to a reference gas. First and second electrodes are respectively pressed against the first and second surface of the solid electrolyte body. The first electrode exposed to the gas is covered with a porous gas diffusion-resisting layer. This gas diffusion-resisting layer is chosen to have an average pore-size ranging from 300 .ANG. to 400 .ANG..

REFERENCES:
patent: 4097353 (1978-06-01), Kishida et al.
patent: 4164462 (1979-08-01), Ichikawa et al.
patent: 4265930 (1981-05-01), Shinohara et al.
patent: 4356065 (1982-10-01), Dietz
patent: 4359374 (1982-11-01), Sano et al.
patent: 4402820 (1983-09-01), Sano et al.

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