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Polyimide Capacitive Humidity Sensors
Abstract
The need for a full-range, low cast humidity
sensor has led Honeywell to develop a capacitive
relative humidity (RH) sensor with resistance to
environmental contaminants. The sensor is used in
a bridge circuit to give either a voltage or a
current output. In our application, the bridge
circuit also has a temperature sensor and is used
to sense the enthalpy of outdoor air for an
economizer cooling cycle.
Citation
Lofgren, H.; Mills, F. (1988). Polyimide Capacitive Humidity Sensors. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /6540.