Method of detecting oxygen and an oxygen sensor therefor
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United States of America Patent
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Aug 31, 1982
Grant Date -
N/A
app pub date -
Sep 30, 1980
filing date -
Jan 31, 1979
priority date (Note) -
Expired
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Abstract
An oxygen sensing element has a body of chromium-rich zinc chromite and electrodes in contact with it for sensing the electrical resistance. At elevated temperatures, the resistance varies with oxygen concentration. A rare earth oxide dopant, preferably 15% mole percent Lanthanum 10 oxide, stabilizes and improves performance.
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