1 September 2017 Optoelectronics sensors of hydrocarbons based on NDIR technique
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Proceedings Volume 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods; 104550O (2017) https://doi.org/10.1117/12.2282779
Event: Twelfth Integrated Optics – Sensors, Sensing Structures and Methods Conference, 2017, Szczyrk-Gliwice, Poland
Saturated hydrocarbons are mainly nontoxic, but as extremely flammable gases forming explosive mixtures with air. The Lower Explosive Level (LEL) for methane is 4.4%, which is very dangerous in the mining industry. Methane is also an asphyxiant gas causing coma or death. Therefore, continuous monitoring of the hydrocarbons concentration is very important. Optoelectronic methods are very attractive for this application, especially nondispersive infrared (NDIR) technique. It enables a direct, fast, and selective measurement of different gas concentrations. NDIR sensors have many advantages, which make them very promising for use as hydrocarbon detectors. Despite a lot of benefits, common used NDIR sensors have some disadvantages. They need periodic calibration and have limited detection range, from ~100ppm. These parameters can be improved thanks to modernization detection scheme and use of newest IR sources and detectors. During Analyses selected IR sources and detectors were taken into account. Absorption spectra of analyzed hyrdrocarbons were studied to minimize impact interfering gases like carbon dioxide and water.
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Artur Prokopiuk, Artur Prokopiuk, } "Optoelectronics sensors of hydrocarbons based on NDIR technique", Proc. SPIE 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 104550O (1 September 2017); doi: 10.1117/12.2282779; https://doi.org/10.1117/12.2282779

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