Solid electrolyte oxygen sensor with zero oxygen reference

Details Solid electrolyte oxygen sensor with zero oxygen reference Solid electrolyte oxygen sensor with zero oxygen reference

1978-05-03

1979-11-13

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

204 1T, G01N 2746

Patent

active

041742583

ABSTRACT:
A solid electrolyte oxygen gas sensor element 1 comprises an electrolyte body 3 having electrodes 7 and 11 on the outer and inner surfaces 5 and 9 thereof, with the inner surface 9 having a protective means 13 thereon to protect the same from contact with oxygen or oxygen-containing gases so as to provide a substantially zero oxygen reference for the inner surface. The protective means 13 can comprise a coating, or a packing within a tubular electrolyte body, of carbon or a metal which forms an oxide that is stable at the operating temperature of the oxygen sensor element.

REFERENCES:
patent: 3403090 (1968-09-01), Tajiri et al.
patent: 3578578 (1971-05-01), Von Krusenstierna
patent: 3619381 (1971-11-01), Fitterer
patent: 4021326 (1977-05-01), Pollner et al.
patent: 4045300 (1977-08-01), Renet
patent: 4049524 (1977-09-01), Togawa et al.
patent: 4057477 (1977-11-01), Weyl et al.

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