Repozytorium publikacji - Politechnika Gdańska

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.

Autorzy

• Łukasz Lentka link otwiera się w nowej karcie ,
• prof. dr hab. inż. Janusz Smulko link otwiera się w nowej karcie ,
• Radu Ionescu,
• Claes Goran Granqvist,
• Laszlo B. Kish