대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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Co gas 검지용 ZnO/$PdCl_2$계 가스센서의 특성

The characteristics of ZnO/$PdCl_2$ gas sensor to CO gas

  • Hong, H.K. (Depart. Of Electrical Engineering, Korea University) ;
  • Kim, B.H. (Depart. Of Electrical Engineering, Korea University) ;
  • Cheon, Y.I. (Depart. Of Electrical Engineering, Korea University) ;
  • Lee, C.J. (Depart. Of Electrical Engineering, Korea University) ;
  • Sung, Y.K. (Depart. Of Electrical Engineering, Korea University)
  • 발행 : 1990.11.17
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초록

A gas sensor, comprised of both ZnO and $PdCl_2$ powders, has been developed to sense the CO gas of low concentration (100 ppm). When the weight ratio of ZnO/$PdCl_2$ element sintered at $600^{\circ}C$ was 99.5/0.5, the maximum sensitivity to CO gas was obtained at the operating temperature of $200^{\circ}C$. Also, the response characteristics of this element were examined, and then the response time was decreased from 90 to 45 sees, with operating temperature increase in the range of $100-400^{\circ}C$.

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