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변형기 ( Byeon Hyeong Gi ),이준섭 ( Lee Jun Seob ),김정도 ( Kim Jeong Do ) 한국센서학회 2004 센서학회지 Vol.13 No.1
There is currently much interest in the development of instruments that emulate the senses of humans. Increasingly,there is demand for mimicking the human sense of smell, which is a sophisticated chemosensory system. An electronicnose system is applicable to a large area of industries including environmental monitoring. We have designed a protableelectronic nose system using an array of commercial chemical gas sensors for recognizing and analyzing the variousodours. In this paper, we have implemented a portable electronic nose system using an array of gas sensors for recognizingand analyzing VOCs (Y31a1i1e Organic Compounds) in the field. The accuracy of a portable electronic nose system maybe lower than an instrument such as GCMS (Gas ChromatographyMass Spectrometer). However, a portable electronicnose system could be used on the field and showed fast response to pollutants in the field. Several different algorithmsfor odours recognition were used such as BP (Back-Propagation) or LM-BP (Levenberq-Marquardt Back-Propagation). Weapplied RBF (Radial Basis Function) Network for recognition and quantifying of odours, which has simpler and fastercompared to the previously used algorithms such as BP and LM-BP.