Gas detecting device
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United States of America Patent
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Sep 25, 1990
Grant Date -
N/A
app pub date -
Feb 2, 1989
filing date -
Feb 4, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
When the output of a gas sensor is approximately constant, the sensor output is stored as a reference output. Evolution of a gas is detected from variations in the sensor output from the stored reference output. The sensor output which is constant is detected by establishing that the difference between a maximum and a minimum of sensor output in a predetermined section is not greater than a specified value.
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