光学学报, 2018, 38 (9): 0930001, 网络出版: 2019-05-09
免标定波长调制吸收光谱技术用于乙炔探测的研究 
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Calibration-Free Wavelength Modulation Absorption Spectroscopy for Acetylene Detection
图 & 表
图 3. C2H2和H2O在6529.17 cm-1处的模拟吸收谱
Fig. 3. Simulated absorption spectra of C2H2 and H2O at 6529.17 cm-1
图 4. 测量得到的N2气体的背景光强Ibg(t)和通入C2H2气体后的激光光强I(t)
Fig. 4. Measured background intensity Ibg(t) of N2 gas and laser intensity I(t) after passing into C2H2 gas
图 5. 测量得到的1f-WMS信号、2f-WMS信号、2f/1f-WMS信号和最佳拟合光谱以及残差
Fig. 5. Measured 1f-WMS signal, 2f-WMS signal,2f/1f-WMS signals, together with best fitting and residual signals
图 6. 不同体积分数C2H2气体光谱信号的测量结果和拟合结果。(a) 10-5;(b) 4×10-5;(c) 1.2×10-4;(d) 4×10-4
Fig. 6. Measured and fitted spectral signal of C2H2 gas with different volume fractions. (a) 10-5; (b) 4×10-5;(c) 1.2×10-4; (d) 4×10-4
图 7. 测量反演浓度与配制浓度的相对误差
Fig. 7. Corresponding relative errors of gas measured concentration and sample concentration
陈家金, 王贵师, 刘锟, 谈图, 高晓明. 免标定波长调制吸收光谱技术用于乙炔探测的研究[J]. 光学学报, 2018, 38(9): 0930001. Jiajin Chen, Guishi Wang, Kun Liu, Tu Tan, Xiaoming Gao. Calibration-Free Wavelength Modulation Absorption Spectroscopy for Acetylene Detection[J]. Acta Optica Sinica, 2018, 38(9): 0930001.
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