Optically Induced Semiconductor Gas Sensor: Acetone Detection Range using Continuous and Cyclic Optical Irradiation Types

IFMBE Proceedings. Vol.65: EMBEC & NBC 2017: Joint Conference of the European Medical and Biological Engineering Conference (EMBEC) and the Nordic-Baltic Conference on Biomedical Engineering and Medical Physics (NBC) 2017
Jurijs Dehtjars, Maksims Komars, Filips Morozovs, Maksims Šneiders

In previous studies the possibility to use optically induced semiconductors to sense acetone vapors was demonstrated. One of the studies demonstrated the possibility to sense and determine various solvent gases, where acetone vapor showed the highest signal increase. In this study, two optical irradiation types (continuous and cyclical) are compared. The study demonstrates that irradiation mode can affect the sensitivity of the system. Experimental results are in close accord with predictions [3] and demonstrate a non-linear response. With continuous irradiation mode acetone sensing range of the system is between 18 to 818 ppm with measurement deviation from the regression curve of ±0.96% (k=2). Cyclic optical irradiation demonstrated sensing response of acetone in the range between 167 ppm to 2190 ppm with measurement deviation from the regression curve of ±0.11% (k=2). By comparing results of both irradiation types possible influence of optical irradiation intensity on sensor response can be observed. This has potential for future work.

Keywords
Optical stimulation, Gas sensing, Gas adsorption, Gas dilution
DOI
10.1007/978-981-10-5122-7_83
Hyperlink
https://link.springer.com/chapter/10.1007%2F978-981-10-5122-7_83

Dehtjars, J., Komars, M., Morozovs, F., Šneiders, M. Optically Induced Semiconductor Gas Sensor: Acetone Detection Range using Continuous and Cyclic Optical Irradiation Types. In: IFMBE Proceedings. Vol.65: EMBEC & NBC 2017: Joint Conference of the European Medical and Biological Engineering Conference (EMBEC) and the Nordic-Baltic Conference on Biomedical Engineering and Medical Physics (NBC), Finland, Tampere, 11-15 June, 2017. Singapore: Springer Nature Singapore Pte Ltd., 2017, pp.330-333. ISBN 978-981-10-5121-0. e-ISBN 978-981-10-5122-7. ISSN 1680-0737. e-ISSN 1433-9277. Available from: doi:10.1007/978-981-10-5122-7_83

Publication language
English (en)