Gas Sensor and Method for Sensing Presence of Ethanol Vapor in a Cabin
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United States of America Patent
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Issued Date -
Sep 24, 2015
app pub date -
Mar 18, 2015
filing date -
Mar 21, 2014
priority date (Note) -
Abandoned
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Abstract
A gas sensor for sensing a presence of ethanol vapor in a cabin includes a source of infrared radiation, a first detector configured to receive infrared radiation from the source in a first region of the electromagnetic spectrum and a second detector for detecting a parameter, such as an amount of radiation received from the source in a second region of the electromagnetic spectrum, a temperature of the source and/or an amount of a second gas present in the cabin, affecting the amount of infrared radiation detected by the first detector. With this data, the presence of ethanol vapor in a cabin is established by an output of the gas sensor based on signals from both the first and second detectors.
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