Development of Portable Electronic Nose for VOC Detection

Abstract

In order to detect Volatile Organic Compounds (VOC) quickly and accurately, a portable electronic nose system was developed which including signal acquisition module, valve control module, embedded modules. Three sensors were used to measure methane, ethanol and formaldehyde gas. We used a three-way valve to control two kinds of gas, in order to avoid the system noise the zero reference was subtracted with the gas being tested. The system could quickly detect the three kinds VOC. The system can play a positive role in the rapid assessment of pollution in industrial parks.

Development of compact electronic noses: a review

“…Diseases prediction [42][43][44][45] Microorganism detection [46,47] Drugs classification [48] Environment Automobile exhaust detection [1,49] Outdoor gas monitoring [7,[50][51][52][53][54]] Indoor gas monitoring [3,55,56]…”