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Experimental study on mid-infrared CO transition lines broadened by N2, He, and H2 at elevated temperatures

文献类型：期刊论文

作者Liu,Tielou1,2; He,Dong1,2; Li RJ(李仁杰)1; Li F(李飞)1; Si T(司廷)1,2; Ding,Juchun1,2; Luo XS(罗喜胜)1,2
刊名MEASUREMENT
出版日期2025
卷号242页码:13
关键词Collisional broadening coefficients High temperature Shock tube TDLAS CO
ISSN号0263-2241
DOI10.1016/j.measurement.2024.116264
通讯作者He, Dong(donghe@ustc.edu.cn)
英文摘要Tunable diode laser absorption spectroscopy (TDLAS) has been established as a strong technique for high-fidelity measurements at elevated temperatures. However, the accuracy of the measured data using TDLAS depends on the accuracy of the spectroscopic parameters. In this paper, the N2-, He-, and H2-perturbed collisional broadening coefficients of the CO P(0, 21), P(1, 21), and P(0, 37) lines were measured at 1040-2980 K. Ar-diluted mixtures were applied to measure these spectroscopic parameters at elevated temperatures up to 3000 K. Validation experiments highlighted that the measured temperatures and CO concentrations agreed well with the known values under thermal equilibrium and nonequilibrium conditions. Comparisons of residuals in Voigt fitting highlighted that the N2-perturbed Dicke narrowing effects are stronger than the He- and H2-perturbed phenomena. The differences among species-perturbed high-temperature collisional broadening coefficients for the three transition lines were found to be closely related to the intermolecular forces and effective collision crosssections.
分类号一类
WOS关键词CASCADE LASER-ABSORPTION ; CARBON-MONOXIDE ; FUNDAMENTAL-BAND ; OVERTONE BANDS ; HELIUM ; WIDTHS ; SHIFTS ; (CO)-C-12-O-16 ; COEFFICIENTS ; PARAMETERS
资助项目Chinese Academy of Sciences[XDB0620201] ; frontier scientific research program of Deep Space Exploration Labora-tory[2022-QYKYJH-HXYF-019] ; National Natural Science Foundation of China[12027801] ; National Natural Science Foundation of China[12402274] ; National Natural Science Foundation of China[12388101]
WOS研究方向Engineering ; Instruments & Instrumentation
语种英语
WOS记录号WOS:001366626500001
资助机构Chinese Academy of Sciences ; frontier scientific research program of Deep Space Exploration Labora-tory ; National Natural Science Foundation of China
其他责任者He, Dong
源URL[http://dspace.imech.ac.cn/handle/311007/97588]  
专题力学研究所_高温气体动力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
2.Univ Sci & Technol China, Dept Modern Mech, Deep Space Explorat Lab, Hefei 230026, Peoples R China;
推荐引用方式
GB/T 7714		 Liu,Tielou,He,Dong,Li RJ,et al. Experimental study on mid-infrared CO transition lines broadened by N2, He, and H2 at elevated temperatures[J]. MEASUREMENT,2025,242:13.
APA Liu,Tielou.,He,Dong.,李仁杰.,李飞.,司廷.,...&罗喜胜.(2025).Experimental study on mid-infrared CO transition lines broadened by N2, He, and H2 at elevated temperatures.MEASUREMENT,242,13.
MLA Liu,Tielou,et al."Experimental study on mid-infrared CO transition lines broadened by N2, He, and H2 at elevated temperatures".MEASUREMENT 242(2025):13.

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来源：力学研究所

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