Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Environmental Monitoring Sub-System for Ubiquitous Terminal Using Metal Oxide Nano-Material Gas Sensor

나노 금속산화물을 이용한 유단말용 환경 모니터링 서브 시스템

  • Moon, S.E. (IT Convergence & Component Lab. ETRI) ;
  • Lee, H.Y. (IT Convergence & Component Lab. ETRI) ;
  • Lee, J.W. (IT Convergence & Component Lab. ETRI) ;
  • Park, J. (IT Convergence & Component Lab. ETRI) ;
  • Park, S.J. (IT Convergence & Component Lab. ETRI) ;
  • Kwak, J.H. (IT Convergence & Component Lab. ETRI) ;
  • Maeng, S. (IT Convergence & Component Lab. ETRI) ;
  • Park, K.H (IT Convergence & Component Lab. ETRI) ;
  • Kim, J. (IT Convergence & Component Lab. ETRI) ;
  • Udrea, F. (Department of Engineering, University of Cambridge) ;
  • Milne, W.I. (Department of Engineering, University of Cambridge)
  • 문승언 (한국전자통신연구원 IT융합부품연구소) ;
  • 이홍열 (한국전자통신연구원 IT융합부품연구소) ;
  • 이재우 (한국전자통신연구원 IT융합부품연구소) ;
  • 박종혁 (한국전자통신연구원 IT융합부품연구소) ;
  • 박소정 (한국전자통신연구원 IT융합부품연구소) ;
  • 곽준혁 (한국전자통신연구원 IT융합부품연구소) ;
  • 맹성렬 (한국전자통신연구원 IT융합부품연구소) ;
  • 박강호 (한국전자통신연구원 IT융합부품연구소) ;
  • 김종대 (한국전자통신연구원 IT융합부품연구소) ;
  • ;
  • Published : 2008.06.19
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Abstract

Environmental monitoring sub-system has been developed using gas sensor module, Bluetooth module and PDA phone. The gas sensor module consists of $NO_2or$ CO gas sensor and signal processing chips. Gas sensor is composed of the micro-heater, sensing electrode and sensing material. Metal oxide nano-material was selectively deposited on a substrate with micro-heater and was integrated to the gas sensor module. The change in resistance of the metal oxide nano-material due to exposure of oxidizing or deoxidizing gases is utilized as the principle of this gas sensor operation mechanism. This variation detected in the gas sensor module was transferred to the PDA phone by way of Bluetooth module.

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