Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1997-09-22
2000-01-18
Williams, Hezron
Measuring and testing
Gas analysis
Moisture content or vapor pressure
7333506, 7333508, 600529, 600543, G01N 1910, A61B 5097
Patent
active
06014890&
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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Larkin Daniel S.
Williams Hezron
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