Ethanol gas concentration detection system based on near infrared spectroscopy

Tongqing Liao; Ning Zhang; Changyu Zuo; Gang Zhou

doi:10.1117/12.2664203

4 April 2023 Ethanol gas concentration detection system based on near infrared spectroscopy

Tongqing Liao, Ning Zhang, Changyu Zuo, Gang Zhou

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 1261714 (2023) https://doi.org/10.1117/12.2664203
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China

Abstract

Based on the absorption mechanism of infrared spectrum of ethanol gas, a detection system is designed to detect the concentration of ethanol gas quickly and accurately. Based on the Beer-Lambert law and the absorption rate of ethanol gas in the near-infrared region, the infrared diode with the center wavelength of 1300 nm is selected as the light source, and then the cascaded air chamber is designed, and the light source driving circuit and detecting circuit are designed and made. The results show that the system is simple in structure, stable in performance. The measurement error is within 5.3%, which meets the current demand of ethanol concentration detection in the liquor industry.

Citation Download Citation

Tongqing Liao, Ning Zhang, Changyu Zuo, and Gang Zhou "Ethanol gas concentration detection system based on near infrared spectroscopy", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 1261714 (4 April 2023); https://doi.org/10.1117/12.2664203

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