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Journal of Micro/Nanolithography, MEMS, and MOEMS

Portable electronic nose system with chemiresistor sensors to detect and distinguish chemical warfare agents
Author(s): Li Chun Wang; Kea Tiong Tang; Cheng-Tzu Kuo; Cheng-Long Ho; Shiao-Ray Lin; Yuh Sung; Chang-Ping Chang
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Paper Abstract

An electronic nose (E-Nose) has been studied as a means to realize artificial olfaction. Electronic nose "instruments" are currently relatively large, since the signal manipulation and classification are still done by a personal computer (PC) or a laptop. For this reason, we have developed a portable electronic nose system based on a handheld machine by using a vapor detection array made of carbon-black polymer composites and a sensor circuit. In an effort to make a portable electronic nose, we used thin-film chemical sensors based on the carbon-black polymer nanocomposite to reliably detect chemical warfare agents. To replace the large volume of PCs, we used a field-programmable gate array to perform system control, signal manipulation, and classification. This E-Nose system was exposed to dimethyl-methyl phosphonate (DMMP) and dichloromethane (DCM) in parts per million concentration levels. DMMP and DCM were considered as simulants of the nerve agent sarin and the incapacitating agent BZ gases, respectively.

Paper Details

Date Published: 1 July 2010
PDF: 6 pages
J. Micro/Nanolith. MEMS MOEMS 9(3) 031010 doi: 10.1117/1.3466797
Published in: Journal of Micro/Nanolithography, MEMS, and MOEMS Volume 9, Issue 3
Show Author Affiliations
Li Chun Wang, Chung-Shan Institute of Science and Technology (Taiwan)
Kea Tiong Tang, National Tsing Hua Univ. (Taiwan)
Cheng-Tzu Kuo, MingDao Univ. (Taiwan)
Cheng-Long Ho, Chung-Shan Institute of Science and Technology (Taiwan)
Shiao-Ray Lin, Chung-Shan Institute of Science and Technology (Taiwan)
Yuh Sung, Chung-Shan Institute of Science and Technology (Taiwan)
Chang-Ping Chang, National Defense Univ. (Taiwan)


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