A Compact 16-Channels Input Thermally-Adsorption/Desorption-Controlled Intelligent Odor Sensing System

In this study, we developed a compact thermally-adsorption/desorption-controlled odor sensing system (TC-OSS). The absorption and desorption of odor molecules or volatile organic compounds (VOCs) are controlled by sensor temperature giving a high resistance value in a VOC adsorbed state at low tempe...

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Veröffentlicht in:	IEEE sensors journal 2024-02, p.1-1
Hauptverfasser:	Niinomi, Toshiki, Nakao, Atsuo, Hanai, Yosuke, Ushio, Hiroshi, Hayashi, Takuya, Nakatani, Masaya
Format:	Artikel
Sprache:	eng
Schlagworte:	Artificial intelligence Discriminative classifier Fluidly-adsorption/desorption-controlled Odor Sensing System (FC-OSS) Phase change materials Polymer-nanocomposite conductive membrane (PCM) Principal component analysis (PCA) Sensor phenomena and characterization Sensors Temperature control Temperature sensors Thermally-adsorption/desorption-controlled odor sensing system (TC-OSS) Volatile organic compounds (VOCs)
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creator	Niinomi, Toshiki Nakao, Atsuo Hanai, Yosuke Ushio, Hiroshi Hayashi, Takuya Nakatani, Masaya
description	In this study, we developed a compact thermally-adsorption/desorption-controlled odor sensing system (TC-OSS). The absorption and desorption of odor molecules or volatile organic compounds (VOCs) are controlled by sensor temperature giving a high resistance value in a VOC adsorbed state at low temperature and a low resistance in a VOC desorbed state at a high temperature. The system eliminates many gas flow control parts required in conventional odor sensing system realizing a significant compactness. The developed TC-OSS comprises a 16 channels VOC sensing elements array fabricated on a small heater showing high sensitivity (3 ppb sensing capability with signal-to-noise ratio as high as ~15 dB). With the assist of artificial intelligence AI post-processing, discriminative classifier of five standard VOCs with high a successful probability (~95.8%) is demonstrated.
doi_str_mv	10.1109/JSEN.2024.3361855
format	Article
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subjects	Artificial intelligence Discriminative classifier Fluidly-adsorption/desorption-controlled Odor Sensing System (FC-OSS) Phase change materials Polymer-nanocomposite conductive membrane (PCM) Principal component analysis (PCA) Sensor phenomena and characterization Sensors Temperature control Temperature sensors Thermally-adsorption/desorption-controlled odor sensing system (TC-OSS) Volatile organic compounds (VOCs)
title	A Compact 16-Channels Input Thermally-Adsorption/Desorption-Controlled Intelligent Odor Sensing System
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