Oxygen sensor

Details Oxygen sensor Oxygen sensor

1984-12-12

1987-06-30

Broome, Harold

Electrical resistors

Resistance value responsive to a condition

Gas, vapor, or moisture absorbing or collecting

338 36, H01L 700

Patent

active

046774149

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 (SrFeO.sub.3-x), barium ferrate (BaFeO.sub.3-x), and strontium barium ferrate (Sr.sub.1-b Ba.sub.b FeO.sub.3-x), where x is a variable and determines the degree of oxygen deficiency of the oxide, and b is 0 to 1, in which part of the iron in the ferrate lattice has been replaced by at least one element selected from the group consisting of zirconium, hafnium and tin.

REFERENCES:
patent: 4453397 (1984-06-01), Ohta et al.
patent: 4454494 (1984-06-01), Williams et al.
Sisler et al., College Chemistry, A Systematic Approach, New York, The MacMillan Company, 1953, p. 72.

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