Title :
An Improved Integrated Electronic Nose for Online Measurement of VOCs in Indoor Air
Author :
Xiangsheng, Fang ; Guowei, Qi ; Miao, Guo ; Min, Pan ; Yuquan, Chen
Author_Institution :
Dept. of Biomed. Eng., Zhejiang Univ., Hangzhou
Abstract :
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
Keywords :
arrays; biomedical equipment; desorption; electronic noses; fast Fourier transforms; medical signal processing; pattern recognition; radial basis function networks; FFT; RBF artificial neural network; active adsorbent sampling; dynamic signal extraction; human olfactory system; improved integrated electronic nose; indoor air; online VOC measurement; optimized arrays of sensors; pattern recognition; thermal desorption; volatile organic compounds; Artificial neural networks; Design optimization; Electronic noses; Humans; Olfactory; Pattern recognition; Sampling methods; Sensor arrays; Signal design; Volatile organic compounds; VOCs; dynamic measurement; electronic nose; enrichment; pattern recognition; sensor;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1617079
