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http://dx.doi.org/10.5369/JSST.2013.22.4.286

A Study on Malodor Pattern Analysis Using Gas Sensor Array  

Choi, Jang-Sik (Technology R&D Center, Lookidea Co.)
Jeon, Jin-Young (Division of Electronics, Information & Communication Engineering, Kangwon National University)
Byun, Hyung-Gi (Division of Electronics, Information & Communication Engineering, Kangwon National University)
Lim, Hea-Jin (Division of Electronics, Information & Communication Engineering, Kangwon National University)
Publication Information
Journal of Sensor Science and Technology / v.22, no.4, 2013 , pp. 286-291 More about this Journal
Abstract
This paper presents to analyze patterns from single and complex malodors using gas sensor array based on metal oxide semiconductors. The aim of research is to identify and discriminate single malodors such as $NH_3$, $CH_3SH$ and $H_2S$ and their mixtures according to concentration levels. Measurement system for analyzing patterns from malodors is constructed by an array of metal oxide semiconductor sensors which are available commercially together with associate electronics. The patterns from sensory system are analyzed by Principal Component Analysis (PCA) which is simple statistical pattern recognition technique. Throughout the experimental trails, we confirmed the experimental procedure for measurement system such as sensors calibration time and gas flow rate, and discriminated malodors using pattern analysis technique.
Keywords
Gas sensor array; Complex malodor; Odor classification; Mixture gas discrimination;
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