한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제18권7호
  • /
  • Pages.628-634
  • /
  • 2005
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  • 1226-7945(pISSN)
  • /
  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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실내 공기질 향상을 위한 비분산 적외선 이산화탄소 가스센서

NDIR CO2 Gas Sensor for Improving Indoor Air Quality

  • 이승환 (충주대학교 정보제어공학과) ;
  • 박정민 (충주대학교 정보제어공학과) ;
  • 박영환 (충주대학교 정보제어공학과) ;
  • 한승오 (고려대학교 전기공학과)
  • 발행 : 2005.07.01
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초록

We have simulated and proposed novel optical cavity, which has two elliptical mirrors, for NDIR gas sensor module and have tested it from 0 ppm to 2,000 ppm $CO_2$ concentration. The proposed sensor module shows the maximum peak voltage at 500 ms pulse modulation time, however, it shows a maximum voltage changes at 200 ms pulse duration with 18,000 times amplification gain. From 0 ppm to 2,000 ppm, the voltage difference of sensor module $({\Delta}V)$ shows 360 mV at 200 ms pulse duration and 3 sec turn-off time. The response time of designed sensor module is about 30 seconds.

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참고문헌

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