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VOC GAS LEAK DETECTION USING PYRO-ELECTRIC INFRARED SENSORS

   Erden, Fatih; Soyer, E. Birey; Toreyin, B. Ugur; Cetin, A. Enis

In this paper, we propose a novel method for detecting and monitoring Volatile Organic Compounds (VOC) gas leaks by using a Pyro-electric (or Passive) Infrared (PIR) sensor whose spectral range intersects with the absorption bands of VOC gases. A continuous time analog signal is obtained from the PIR sensor. This signal is discretized and analyzed in real time. Feature parameters are extracted in wavelet domain and classified using a Markov Model (MM) based classifier. Experimental results are presented.

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