Hydrogen Detection With a Gas Sensor Array – Processing and Recognition of Dynamic Responses Using Neural Networks

• Autorzy: Gwiżdż P. , Brudnik A. , Zakrzewska K.

Identyfikatory

DOI

10.1515/mms-2015-0008

• Języki publikacji: EN

Abstrakty

EN

An array consisting of four commercial gas sensors with target specifications for hydrocarbons, ammonia, alcohol, explosive gases has been constructed and tested. The sensors in the array operate in the dynamic mode upon the temperature modulation from 350°C to 500°C. Changes in the sensor operating temperature lead to distinct resistance responses affected by the gas type, its concentration and the humidity level. The measurements are performed upon various hydrogen (17-3000 ppm), methane (167-3000 ppm) and propane (167-3000 ppm) concentrations at relative humidity levels of 0-75%RH. The measured dynamic response signals are further processed with the Discrete Fourier Transform. Absolute values of the dc component and the first five harmonics of each sensor are analysed by a feed-forward back-propagation neural network. The ultimate aim of this research is to achieve a reliable hydrogen detection despite an interference of the humidity and residual gases.

Słowa kluczowe

EN

gas sensor; sensor array; temperature modulation; dynamic response; feature extraction; neural networks

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2015
• Tom: Vol. 22, nr 1
• Strony: 3--12
• Opis fizyczny: Bibliogr. 25 poz., rys., tab., wykr.

Twórcy

autor

Gwiżdż P.

• AGH University of Science and Technology, Faculty of Computer Science, Electronics and Telecommunications, Department of Electronics, Mickiewicza Av. 30, 30-059 Krakow, Poland

autor

Brudnik A.

• AGH University of Science and Technology, Faculty of Computer Science, Electronics and Telecommunications, Department of Electronics, Mickiewicza Av. 30, 30-059 Krakow, Poland

autor

Zakrzewska K.

• AGH University of Science and Technology, Faculty of Computer Science, Electronics and Telecommunications, Department of Electronics, Mickiewicza Av. 30, 30-059 Krakow, Poland

Bibliografia

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Uwagi

EN

Patryk Gwiżdż acknowledges the support of Polish Ministry of Science and Education under the AGH-University of Science and Education grant for PhD students (15.11.230.142) for 2014 and benefits from the financial support from "Doctus - Małopolski Fundusz stypendialny dla doktorantów". This work has been also financed by Polish National Center for Science, NCN, grant decision DEC-2011/03/B/ST7/01840.