Recognition of volatile organic compounds utilizing a portable electronic nose
Journal
Biomedical Engineering - Applications, Basis and Communications
Journal Volume
21
Journal Issue
6
Pages
427-431
Date Issued
2009
Author(s)
Abstract
In this study, we proposed a portable electronic nose (e-nose) system based on a microcontroller (MSP430-FG439) combined with a tin oxide ( SnO 2 ) gas sensor, which was heated by a cyclic heating method, to recognize the volatile organic compounds (VOCs). We had demonstrated that this e-nose system can classify and quantify VOCs, such as methanol and ethanol. The sensitivity of the e-nose system had good linearity in the concentration range of 10–40 ppm of these two VOCs, respectively. This portable e-nose system was implemented with a microcontroller acted as CPU, an LCD for displaying information of gases in real time, a wireless communication system, ZigBee, and a warning system.
Type
journal article