대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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감응성막의 유기가스 응답특성 분석

The Analysis of Organic Gas Response Characteristic for Polymer Coating Materials

  • Kim, J.M. (Dept. of Electrical Eng., Dong-A Univ.) ;
  • Kwon, Y.S. (Dept. of Electrical Eng., Dong-A Univ.) ;
  • You, S.Y. (Dept. of Electrical Eng., Dong-A Univ.) ;
  • Choi, Y.S. (Dept. of Electrical Eng., Dong-A Univ.)
  • 발행 : 1995.11.18
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초록

Polymer-coated piezoelectric crystals were applied to analyze response characteristic of organic gases. AT-cut quartz crystal with 9 MHz resonant frequency can measure mass of 1 nanogram. Flow type gas-sensing system was used in this experiment. Flow type gas-sensing system has very simple apparatus and shows very fast frequency response for injection of organic gas. We have made parameter using relaxation ratio of frequency response for organic gas. Consequently, we found that the parameter had no relation with quantity of gas injection and dipping.

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