Abstract
In previous studies the possibility to use optically induced semiconductors to sense acetone vapors was demonstrated [1]. One of the studies demonstrated the possibility to sense and determine various solvent gases, where acetone vapor showed the highest signal increase [2]. 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.
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References
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Dekhtyar, Y., Komars, M., Morozovs, F., Sneiders, M. (2018). Optically Induced Semiconductor Gas Sensor: Acetone Detection Range using Continuous and Cyclic Optical Irradiation Types. In: Eskola, H., Väisänen, O., Viik, J., Hyttinen, J. (eds) EMBEC & NBC 2017. EMBEC NBC 2017 2017. IFMBE Proceedings, vol 65. Springer, Singapore. https://doi.org/10.1007/978-981-10-5122-7_83
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DOI: https://doi.org/10.1007/978-981-10-5122-7_83
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