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An Improved Integrated Electronic Nose for Online Measurement of VOCs in Indoor Air

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5 Author(s)
Fang Xiangsheng ; Biosensor National Special Laboratory, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, PR China ; Guo Miao ; Pan Min ; Chen Yuquan
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An improved integrated electronic nose mimic human olfactory system was developed and applied to online measurement of volatile organic compounds (VOCs) in indoor air. An enrichment unit based on active adsorbent sampling and thermal desorption was employed to lower detection limits to matching environmental concentrations. Two kinds of optimized arrays of sensors were designed, and an FFT and RBF artificial neural network were employed for dynamic signal extraction and pattern recognition, respectively. Results showed good performance of our electronic nose in qualitative and semi-quantitative measurement

Published in:

2005 IEEE Engineering in Medicine and Biology 27th Annual Conference

Date of Conference:

17-18 Jan. 2006