Oxygen sensors

Details Oxygen sensors Oxygen sensors

1982-04-05

1984-06-12

Williams, Howard S.

Electrical resistors

Resistance value responsive to a condition

Gas, vapor, or moisture absorbing or collecting

73 27R, 422 94, 422 98, 423594, 252 6263, G01N 2712

Patent

active

044544944

ABSTRACT:
An oxygen sensor which exhibits a change in electrical resistance as a function of oxygen partial pressure comprises at least one of strontium ferrate, barium ferrate and strontium barium ferrate, in which part of the iron in the ferrate lattice has been replaced by at least one element of valency greater than 3, such as titanium, cerium, niobium or tantalum.

REFERENCES:
patent: 3535245 (1970-10-01), Lindquist
patent: 3846323 (1974-11-01), Esper et al.
patent: 3951603 (1976-04-01), Obayashi et al.
patent: 4314996 (1982-02-01), Sekido et al.

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