Fast response humidity and temperature sensor device
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United States of America Patent
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Jan 18, 2000
Grant Date -
N/A
app pub date -
Sep 22, 1997
filing date -
Sep 25, 1996
priority date (Note) -
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Abstract
An airway humidity sensor incorporating a small, dry thermocouple and small, wet thermocouple to measure cyclical humidity in inspiration and expiration by the psychrometric principle, the psychrometric component incorporating dialysis micro-tubing in contact with the wet-bulb thermocouple junction, the thermocouples being offset from one another across the cross-sectional plane of the airway in a direction normal to the airflow.
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