中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Precise measurements the broadening characteristics and parameters of methane near-infrared absorption spectrum at high pressure

文献类型:期刊论文

作者He Ying1; Zhang Yu-Jun1,2; You Kun1; Fan Bo-Qiang1,2; Li Meng-Qi1,2; Yu Dong-Qi1,2; Xie Hao1,2; Lei Bo-En1,2; Jia Wei3; Jing Jun-Sen3
刊名JOURNAL OF INFRARED AND MILLIMETER WAVES
出版日期2020-12-01
卷号39
ISSN号1001-9014
关键词laser absorption spectroscopy spectrum broadening characteristics empirical mode decomposition algorithm high pressure methane pressure shift
DOI10.11972/j.issn.1001-9014.2020.06.012
通讯作者Zhang Yu-Jun(yjzhang@aiofm.ac.cn)
英文摘要The high-pressure absorption spectrum at 6046. 96 cm(-1) of methane was obtained with the measurement experimental platform. The empirical mode decomposition algorithm was used to filter out the detection noise caused by window deformation at high-pressure. Consequently,the overall root-mean-square error(RMSE)of absorbance signal was reduced by 3. 87 times,and the residual error of absorbance signal fitting was lower than +/- 1% by using Lorentz line-type fitting algorithm. These studies showed that the absorption line width increased with the pressure increasing,and the mutual broadening coefficient of nitrogen-methane molecules at high-pres. sure was calculated as 0. 0631 cm(-1)atm(-1). Moreover,the absorption line appeared a "red shift" phenomenon as the pressure increasing,and the pressure shift coefficient of nitrogen-induced was calculated as -0. 00848 cm(-1)atm(-1). Therefore,a method of concentration inversion at high pressure was proposed by the linear relationship between the detection wavelength, pressure,and pressure shift coefficient. In conclusion,the research on spectrum broadening characteristics in high-pressure environment lays foundation for spectrum detecting in industrial environment.
WOS关键词SPECTROSCOPY
资助项目National Natural Science Foundation of China[4180512] ; Key Research and Development Projects of Anhui Province[201904a07020093] ; Natural Science Foundation of Anhui Province[1808085MD107] ; Natural Science Foundation of Anhui Province[1808085QD113] ; Key Project of University Natural Science Research Project of Anhui Province[KJ2019A0793] ; Research Project of Anhui Jianzhu University[JZ192037]
WOS研究方向Optics
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000603449000012
资助机构National Natural Science Foundation of China ; Key Research and Development Projects of Anhui Province ; Natural Science Foundation of Anhui Province ; Key Project of University Natural Science Research Project of Anhui Province ; Research Project of Anhui Jianzhu University
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/119578]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang Yu-Jun
作者单位1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Anhui Jianzhu Univ, Coll Mech & Elect Engn, Hefei 230601, Peoples R China
推荐引用方式
GB/T 7714
He Ying,Zhang Yu-Jun,You Kun,et al. Precise measurements the broadening characteristics and parameters of methane near-infrared absorption spectrum at high pressure[J]. JOURNAL OF INFRARED AND MILLIMETER WAVES,2020,39.
APA He Ying.,Zhang Yu-Jun.,You Kun.,Fan Bo-Qiang.,Li Meng-Qi.,...&Liu Wen-Qing.(2020).Precise measurements the broadening characteristics and parameters of methane near-infrared absorption spectrum at high pressure.JOURNAL OF INFRARED AND MILLIMETER WAVES,39.
MLA He Ying,et al."Precise measurements the broadening characteristics and parameters of methane near-infrared absorption spectrum at high pressure".JOURNAL OF INFRARED AND MILLIMETER WAVES 39(2020).

入库方式: OAI收割

来源:合肥物质科学研究院

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