Limiting current-type oxygen sensor

Details Limiting current-type oxygen sensor Limiting current-type oxygen sensor

1989-08-01

1990-07-03

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

G01N 2741

Patent

active

049388614

ABSTRACT:
A limiting current-type oxygen sensor including (a) an oxygen ion-permeable substrate made of a zirconia solid electrolyte having a gas diffusion pore extending between first and second surfaces of the substrate for rate determination by oxygen diffusion through the pore; (b) a first porous electrode formed on the first surface of the substrate in an area including an opening of the gas diffusion pore; (c) a second porous electrode formed on the second surface of the substrate such that it is opposite to the first porous electrode via the substrate; (d) a sealing member fixed to the second surface of the substrate for sealing the second porous electrode such that the internal chamber is defined on the second porous electrode; and (e) a heating means mounted to the sealing member.

REFERENCES:
patent: 4666566 (1987-05-01), Mizutani et al.
patent: 4772376 (1988-09-01), Yukawa et al.
patent: 4795544 (1989-01-01), Nishizawa et al.
patent: 4798693 (1989-01-01), Mase et al.

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