Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1987-04-24
1990-01-23
Orsino, Joseph A.
Communications: electrical
Condition responsive indicating system
Specific condition
73 27R, 36457107, G08B 1710
Patent
active
048961434
ABSTRACT:
A tin oxide carbon monoxide sensor is operated in a manner to exclude effects of ambient temperature and humidity. Resistance of the sensor is measured at a lower temperature and again at a higher temperature. The target gas concentration is determined as a function of the first and second resistances, thereby cancelling the effects of humidity and ambient temperature.
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Anderson Terry G.
Dolnick Earl M.
Jackson Jill D.
Orsino Joseph A.
Quantum Group Inc.
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