Automotive oxygen sensor for use in an industrial process analyzer
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United States of America Patent
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Jul 19, 1994
Issued Date -
N/A
app pub date -
Jan 22, 1990
filing date -
Sep 3, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An industrial process oxygen analyzer, and method of using same, incorporates an automotive oxygen sensor to minimize the criticalness of controlling heater temperature during operation. Higher sensor heater temperature, required to accommodate the automotive oxygen sensor, is achieved by application of higher supply voltage to the sensor heater. Current limiting of the heater supply circuit reduces stress on the sensor heater, even at the higher operating temperature.
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