Resonant photoacoustic spectrometer enhanced by multipass absorption for detecting atmospheric CH4 at the ppb-level
文献类型：期刊论文
| 作者 | Liu, Qiang2 ; Sun, Yi1,3; Qiu, Xuanbing1,3; Guo, Guqing1,3; Li, Lin1,3; Gong, Ting1,3; Li, Chuanliang1,3
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| 刊名 | FRONTIERS IN CHEMISTRY
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| 出版日期 | 2022-09-21 |
| 卷号 | 10 |
| ISSN号 | 2296-2646 |
| 关键词 | photoacoustic spectroscopy (PA) herriott-type multipass enhancement wavelength modulation spectroscopy (laser spectroscopy) atmospheric CH4 detection |
| DOI | 10.3389/fchem.2022.1021145 |
| 通讯作者 | Li, Chuanliang(li_chuanliang@126.com) |
| 英文摘要 | A resonant photoacoustic spectrometer (PAS) was developed for detecting trace atmospheric CH4. The sensitivity of the PAS was significantly increased via a Herriott-type multipass cell with a beam pattern concentrated in the cavity. The effective optical pathlength of the PAS can be optimized to 6.8 m with 34 reflections and a diameter of 6 mm. A distributed feedback diode laser at 1,653 nm was employed as the light source, and wavelength modulation spectroscopy was used for the 2nd harmonic signal to reduce the noise of the system. The resonant cell of PA and optimal modulation frequency were obtained by varying the measurements. In comparison with a single path, the sensitivity of the multipass strategy was improved 13 times. To evaluate the long-term stability and minimum detection limit (MDL) of the system, an Allan variance analysis was performed, and the analysis illustrated that the MDL accomplished 116 ppb at an average time of 84 s. The system was utilized for 2 days test campaign to validate the feasibility and robustness of the sensor. The system provides a promising technique for online monitoring of greenhouse gasses. |
| WOS关键词 | FIBEROPTIC ACOUSTIC SENSOR ; GAS SENSOR ; SPECTROSCOPY ; METHANE ; CELL ; CO |
| 资助项目 | National Natural Science Foundation of China[U1810129] ; National Natural Science Foundation of China[52076145] ; National Natural Science Foundation of China[11904252] ; National Natural Science Foundation of China[42077201] ; State Key Laboratory of Applied Optics[SKLAO-201902] ; Transformation of Scientific and Technological Achievements Fund of Shanxi Province[201904D131025] ; Excellent Youth Academic Leader in Higher Education of Shanxi Province ; Key Research and Development Program of Shanxi Province of China[201803D31077] ; Key Research and Development Program of Shanxi Province of China[201803D121090] ; Shanxi1331 Project Key Innovative Research Team[1331KIRT] ; Natural Science Foundation of Shanxi Province[201801D221017] ; Laboratory of Pulsed Power Laser Technology[SKL2020ZR01] ; Fund for Shanxi Key Subjects Construction |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000864006500001 |
| 资助机构 | National Natural Science Foundation of China ; State Key Laboratory of Applied Optics ; Transformation of Scientific and Technological Achievements Fund of Shanxi Province ; Excellent Youth Academic Leader in Higher Education of Shanxi Province ; Key Research and Development Program of Shanxi Province of China ; Shanxi1331 Project Key Innovative Research Team ; Natural Science Foundation of Shanxi Province ; Laboratory of Pulsed Power Laser Technology ; Fund for Shanxi Key Subjects Construction |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129343]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Li, Chuanliang |
| 作者单位 | 1.Taiyuan Univ Sci & Technol, Shanxi Engn Res Ctr Precis Measurement & Online De, Taiyuan, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, HFIPS, Key Lab Atmospher Opt, Hefei, Peoples R China 3.Taiyuan Univ Sci & Technol, Sch Appl Sci, Taiyuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Qiang,Sun, Yi,Qiu, Xuanbing,et al. Resonant photoacoustic spectrometer enhanced by multipass absorption for detecting atmospheric CH4 at the ppb-level[J]. FRONTIERS IN CHEMISTRY,2022,10. |
| APA | Liu, Qiang.,Sun, Yi.,Qiu, Xuanbing.,Guo, Guqing.,Li, Lin.,...&Li, Chuanliang.(2022).Resonant photoacoustic spectrometer enhanced by multipass absorption for detecting atmospheric CH4 at the ppb-level.FRONTIERS IN CHEMISTRY,10. |
| MLA | Liu, Qiang,et al."Resonant photoacoustic spectrometer enhanced by multipass absorption for detecting atmospheric CH4 at the ppb-level".FRONTIERS IN CHEMISTRY 10(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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