Acta Photonica Sinica, Volume. 53, Issue 10, 1053410(2024)
Monitoring of Multi-component Gas Concentration in Coal Mine Based on TDLAS Technology（Invited）
Figures & Tables(7)
Table 1. Parameters and lower limits of four environmental gases
View tableView in ArticleTable 1. Parameters and lower limits of four environmental gases
Gas Wavelength Wavenumber γ/cm-1 Coefficient of determination R2 Detection limit/（×10-6） CO 1 567 6 381.6 0.993 4 27.1 CO2 1 578 6 337.1 0.991 3 23.2 CH4 1 653 6 047.0 0.991 1 2.2 C2H4 1 626 6 150.1 0.994 5 80.7
Table 2. Repeatability and stability tests for multiple types of gas detection
View tableView in ArticleTable 2. Repeatability and stability tests for multiple types of gas detection
Gas Input gas concentration/% Average value/% Standard deviation/
（×10-4）
Relative standard
deviation/%
Average stability/% CO 1 1.012 4.66 0.046 1 0.402 CO2 1 0.989 5.435 0.054 5 0.365 CH4 1 0.998 4.66 0.047 0.137 C2H4 0.1 0.104 6.395 0.061 5 0.291
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Xiaoliang SHEN, Lanxi HU, Yanxu GAO, Lie LIN. Monitoring of Multi-component Gas Concentration in Coal Mine Based on TDLAS Technology（Invited）[J]. Acta Photonica Sinica, 2024, 53(10): 1053410
Paper Information
Category: Special Issue for“the 40th Anniversary of Institute of Modern Optics Nankai University”
Received: Jun. 28, 2024
Accepted: Oct. 9, 2024
Published Online: Dec. 5, 2024
The Author Email: LIN Lie (linlie@nankai.edu.cn)
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