[1] Yan G. Research on Embedded Remote Monitoring Technology of Urban Atmospheric Trace Methane[D](2022).

[2] Liu J H. Design and Research of Nondispersive Infrared Methane Sensor[D](2021).

[3] Wu T. Simulation Study on the Diffusion and Explosion of HCNG in Soil[D](2023).

[4] Liu C J. Design and Performance Study of Methane Gas Concentration Detection System Based on TDLAS[D](2024).

[5] Li X. Research of Portable Methane Gas Detection Device[D](2019).

[6] Liu X Z, Liang Y Z, Rong X F et al. Study on infrared methane sensor with three ellipsoid absorption cavity[J]. Coal Technology, 34, 264-266(2015).

[8] Li G Y. Analysis of an electrochemical gas sensor for measuring carbon monoxide[J]. Metrology Science and Technology, 65, 40-43(2021).

[9] Song F. Research of Mid-infrared Laser Methane Sensing Technique[D](2020).

[10] Zhang Q, Guan Z S. Gas sensors of electric resistance semiconductors[J]. Instrument Technique and Sensor, 6-9(2006).

[12] Wang F, Jia S H, Wang Y L et al. Recent developments in modulation spectroscopy for methane detection based on a tunable diode laser[J]. Applied Sciences, 9, 2816(2019).

[13] Tian X, Cao Y, Chen J J et al. Dual-gas sensor of CH4/C2H6 based on wavelength modulation spectroscopy coupled to a home-made compact dense-pattern multipass cell[J]. Sensors, 19, 820(2019).

[14] Pan X Q, Liu Q C. The development of infrared technology[J]. Journal of East China Geological Institute, 25, 66-69(2002).

[15] Liu G, Liang T, Huan T et al. Design of direct gas chamber of infrared methane sensor[J]. Industry and Mine Automation, 39, 31-35(2013).

[16] Sun A L, Qian Y H, Wang K Y et al. Design of new symmetrical gas absorption cell based on Zemax[J]. Optical Technique, 48, 445-451(2022).

[17] Luo Y, Mao X B, Huang J J. Development of infrared methane sensor[J]. Instrument Technique and Sensor, 4-6(2007).

[18] Sassaroli A, Fantini S. Comment on the modified Beer-Lambert law for scattering media[J]. Physics in Medicine and Biology, 49, N255-N257(2004).

[19] Xu H, Wang K. A method for calculating radiant properties of gas by HITRAN data[J]. Electro-Optic Technology Application, 33, 28-31(2018).

[20] Kulakova L A, Zotova N V, Karandashev S A et al. Si-Te acoustooptic modulator for fiber optic gas sensor based on midwave InGaAsSb/InAsSbP diode laser[C](1996).