Design and research of methane sensor based on TDLAS laser gas detection technology

Zhongkui Li; Qiwei Li; Qingfeng Rong

doi:10.1117/12.3039993

16 August 2024 Design and research of methane sensor based on TDLAS laser gas detection technology

Zhongkui Li, Qiwei Li, Qingfeng Rong

Proceedings Volume 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024); 132311R (2024) https://doi.org/10.1117/12.3039993
Event: 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 2024, Chongqing, China

Abstract

At present, the laser methane sensors used in the market are designed according to the requirements of AQ 6211-2008 standard. Compared with the standard, there is still some room for improvement in detection accuracy, response time, and power consumption of laser methane sensors. Therefore, a new type of laser methane sensor based on TDLAS methane gas detection technology has been developed. By conducting error tests on three sensors, there is a good linear relationship between the sensor test values and the standard gas, indicating that the sensors have high testing accuracy. The power consumption of the sensor has been tested, and the maximum power supply distance can reach 6 km. Test the sensor response time for less than 15 seconds. The above indicators are all better than the standard requirements. The application of this sensor will improve the detection accuracy and stability of coal mine safety monitoring system, which is of great significance for ensuring coal mine safety production.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhongkui Li, Qiwei Li, and Qingfeng Rong "Design and research of methane sensor based on TDLAS laser gas detection technology", Proc. SPIE 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 132311R (16 August 2024); https://doi.org/10.1117/12.3039993

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