| Autor: |
Lentka Łukasz, Smulko Janusz M., Ionescu Radu, Granqvist Claes G., Kish Laszlo B. |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Metrology and Measurement Systems, Vol 22, Iss 3, Pp 341-350 (2015) |
| Druh dokumentu: |
article |
| ISSN: |
2300-1941 |
| DOI: |
10.1515/mms-2015-0039 |
| Popis: |
This paper analyses the effectiveness of determining gas concentrations by using a prototype WO3 resistive gas sensor together with fluctuation enhanced sensing. We have earlier demonstrated that this method can determine the composition of a gas mixture by using only a single sensor. In the present study, we apply Least-Squares Support-Vector-Machine-based (LS-SVM-based) nonlinear regression to determine the gas concentration of each constituent in a mixture. We confirmed that the accuracy of the estimated gas concentration could be significantly improved by applying temperature change and ultraviolet irradiation of the WO3 layer. Fluctuation-enhanced sensing allowed us to predict the concentration of both component gases. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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