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Development of Electronic Nose for Qualitative and Quantitative Monitoring of Volatile Flammable Liquids
- Source :
- Sensors, Vol 20, Iss 7, p 1817 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- A real-time electric nose (E-nose) with a metal oxide sensor (MOS) array was developed to monitor 5 highly flammable liquids (ethanol, tetrahydrofuran, turpentine, lacquer thinner, and gasoline) in this work. We found that temperature had a significant impact on the test results and temperature control could efficiently improve the performance of our E-nose. The results of our qualitative analysis showed that principal component analysis (PCA) could not efficiently distinguish these samples compared to a back-propagation artificial neural network (BP-ANN) which had a 100% accuracy rate on the test samples. Quantitative analysis was performed by regression analysis and the average errors were 9.1%−18.4%. In addition, through anti-interference training, the E-nose could filter out the potential false alarm caused by mosquito repellent, perfume and hair jelly.
Details
- Language :
- English
- ISSN :
- 14248220 and 20071817
- Volume :
- 20
- Issue :
- 7
- Database :
- Directory of Open Access Journals
- Journal :
- Sensors
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.9ab244b28fc34b1e8f24e6ff0260df4d
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/s20071817