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The humidity sensitive characteristics of $CaZrO_3$ ceramics  

Yuk, Jae-Ho (Department of Electrical Engineering, Yuhan College)
Kim, Yong-Woon (Department of Fire Safety Management, Saekyung College)
Publication Information
전자공학회논문지 IE / v.43, no.3, 2006 , pp. 1-5 More about this Journal
Abstract
[ $CaZrO_3$ ] humidity sensors were prepared using the solid-state synthetic method and their humidity sensitive characteristics have been investigated. It was found that the impedance of the humidity sensors decreased with increasing relative humidity and the humidity sensitivity depended on the applied frequencies. The sensitivity of sensor is stable with heat treatment and a negligible hysteresis under cyclic humidity changes is shown, and the activation energy for electrical conduction is reduced with water adsorption.
Keywords
humidity sensor; hysteresis; activation energy;
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