Meng-Qi Li, Yu-Jun Zhang, Ying He, Kun You, Bo-Qiang Fan, Dong-Qi Yu, Hao Xie, Bo-En Lei, Xiao-Yi Li, Jian-Guo Liu, Wen-Qing Liu. NH3 aliasing absorption spectra at 1103.4 cm–1 based on continuous quantum cascade laser [J]. Acta Physica Sinica, 2020, 69(7): 074201-1
- Acta Physica Sinica
- Vol. 69, Issue 7, 074201-1 (2020)
Fig. 1. QCL characteristic measurement experimental device diagram.
Fig. 2. Experimental gas path diagram.
Fig. 3. (a) Signal drift without secondary temperature control; (b) signal stable output after adding temperature control
Fig. 4. The temperature, current and wavelength of QCL
Fig. 5. (a) Characteristic absorption spectrum signal of ammonia gas under normal pressure; (b) characteristic absorption spectrum signal of ammonia gas under different pressure
Fig. 6. Fitting results of various absorption lines under different pressures.
Fig. 7. Spectral line strength values of each absorption line measured by experiment.
|
Table 1. NH3 absorption line and main parameters.
|
Table 2.
Comparison of experimental measurement line strength and HITRAN database.
实验测量线强与HITRAN数据库对比分析
|
Table 3.
Uncertainty in the measurement of the intensity of the overlapping spectral line.
混叠光谱线强测量不确定度
|
Table 4.
Contrast analysis of experimentally measured line strong inversion concentration and HITRAN database line strong inversion concentration.
实验测量线强反演浓度与HITRAN数据库线强反演浓度作对比分析
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table 5.
Comparison results of different pressure and standard gas concentrations.
不同压力、标气浓度的比较结果
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20