A sensitive methane sensor of a ppt detection level using a mid-infrared interband cascade laser and a long-path multipass cell
文献类型：期刊论文
| 作者 | J. Xia; C. Feng; F. Zhu; S. Ye; S. Zhang; A. Kolomenskii; Q. Wang; J. Dong; Z. Wang; W. Jin and H. A. Schuessler |
| 刊名 | Sensors and Actuators, B: Chemical
 |
| 出版日期 | 2021 |
| 卷号 | 334 |
| ISSN号 | 9254005 |
| DOI | 10.1016/j.snb.2021.129641 |
| 英文摘要 | An ultra-high sensitivity sensor combining a mid-IR (MIR) interband cascade laser (ICL) at center wavelength of 3.37 m and a multi-pass cell (MPC) with a path-length of 580 m was designed and implemented for methane detection. The ultra-high sensitivity is achieved due to the higher absorbance in the MIR than in the near infrared (NIR), a long interaction path length, and the implementation of a wavelet denoising processing algorithm. The performance of the sensor was evaluated with direct absorption spectroscopy (DAS) and wavelength modulation spectroscopy (WMS) in a series of measurements. For the sensor working in the DAS measurement mode, the optimal set of sub-wavelet functions was chosen and utilized for denoising. A calibration gas with methane concentration of 2.0 ppm was measured with a relative error of 1%. The minimum of the Allan deviation of the sensor of 3 ppb was achieved with an averaging time of 200 s. For the WMS technique with the Allan deviation analysis the sensor detection limit for methane of 560 ppt with 290 s averaging time was determined, which is a significant improvement compared to our DAS results and previous reports. The developed sensor has broad applicability in the high-sensitivity measurements of methane and other trace gases. 2021 Elsevier B.V. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/65620]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | J. Xia,C. Feng,F. Zhu,et al. A sensitive methane sensor of a ppt detection level using a mid-infrared interband cascade laser and a long-path multipass cell[J]. Sensors and Actuators, B: Chemical,2021,334. |
| APA | J. Xia.,C. Feng.,F. Zhu.,S. Ye.,S. Zhang.,...&W. Jin and H. A. Schuessler.(2021).A sensitive methane sensor of a ppt detection level using a mid-infrared interband cascade laser and a long-path multipass cell.Sensors and Actuators, B: Chemical,334. |
| MLA | J. Xia,et al."A sensitive methane sensor of a ppt detection level using a mid-infrared interband cascade laser and a long-path multipass cell".Sensors and Actuators, B: Chemical 334(2021). |
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