Highly precise measurement of atmospheric N2O and CO using improved White cell and RF current perturbation
文献类型：期刊论文
| 作者 | Shao, Ligang1,2; Chen, Jiajin1; Wang, Kunyang1,2; Mei, Jiaoxu1 ; Tan, Tu1; Wang, Guishi1; Liu, Kun1; Gao, Xiaoming1,2
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| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 352 |
| 关键词 | Nitrous oxide (N2O) Carbon monoxide (CO) Multipass cell Interference suppression Laser frequency correction |
| DOI | 10.1016/j.snb.2021.130995 |
| 通讯作者 | Chen, Jiajin(jjchen@aiofm.ac.cn) ; Gao, Xiaoming(xmgao@aiofm.ac.cn) |
| 英文摘要 | A highly precise dual gas sensor for measurement of atmospheric nitrous oxide (N2O) and carbon monoxide (CO) was developed and evaluated. A room temperature interband cascade laser emitting at 4.54 mu m was used as a laser source to cover the absorption lines of N2O and CO simultaneously. Sensitivity and precision were enhanced by using an improved White cell with 76 m effective optical path length and radio frequency noise perturbation technique to reduce optical interference noise. A method was proposed to correct the laser frequency by calculating the correlation coefficient between the absorption signal with the reference signal, which effectively reduced the long-term drift of the absorption line center to less than 4 x 10(-5) cm(-1). By further precisely control the temperature and pressure of the absorption cell, a continuous 24 h measurement precision of 65 ppt N2O and 133 ppt CO at 0.1 Hz was demonstrated, with a daily drift less than 1.5 ppt. Finally, the repeatability and reliability of the sensor system were validated by real atmospheric measurements for two consecutive days. |
| WOS关键词 | NITROUS-OXIDE ; MODULATION SPECTROSCOPY ; WAVELENGTH MODULATION ; QUANTUM ; SENSOR ; PERFORMANCE ; COMPACT ; SPECTROMETER |
| 资助项目 | National Key Research and Devel-opment Program of China[2017YFC0209700] ; National Key Research and Devel-opment Program of China[2016YFC0303900] ; National Natural Science Foundation of China[41730103] ; HFIPS Director's Fund[YZJJ2020QN7] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000744271200003 |
| 资助机构 | National Key Research and Devel-opment Program of China ; National Natural Science Foundation of China ; HFIPS Director's Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/127351]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, Jiajin; Gao, Xiaoming |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Ligang,Chen, Jiajin,Wang, Kunyang,et al. Highly precise measurement of atmospheric N2O and CO using improved White cell and RF current perturbation[J]. SENSORS AND ACTUATORS B-CHEMICAL,2022,352. |
| APA | Shao, Ligang.,Chen, Jiajin.,Wang, Kunyang.,Mei, Jiaoxu.,Tan, Tu.,...&Gao, Xiaoming.(2022).Highly precise measurement of atmospheric N2O and CO using improved White cell and RF current perturbation.SENSORS AND ACTUATORS B-CHEMICAL,352. |
| MLA | Shao, Ligang,et al."Highly precise measurement of atmospheric N2O and CO using improved White cell and RF current perturbation".SENSORS AND ACTUATORS B-CHEMICAL 352(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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