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
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| 刊名 | JOURNAL OF INFRARED AND MILLIMETER WAVES
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 39 |
| 关键词 | laser absorption spectroscopy spectrum broadening characteristics empirical mode decomposition algorithm high pressure methane pressure shift |
| ISSN号 | 1001-9014 |
| DOI | 10.11972/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 |
| WOS记录号 | WOS:000603449000012 |
| 出版者 | SCIENCE PRESS |
| 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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