Research on rapid concentration field reconstruction method for two-dimensional geometric paths based on laser absorption spectroscopy
文献类型：期刊论文
| 作者 | Li, Qi3; Tang, Qixing3; Zhang, Yujun2 ; Gao, Hua3; Rao, Yuan1; Liao, Juan3; Wang, Yuwei3
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| 刊名 | MEASUREMENT
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 241 |
| 关键词 | Laser absorption spectrum Gas concentration reconstruction Geometric paths Computed tomography scan Large-scale open space |
| ISSN号 | 0263-2241 |
| DOI | 10.1016/j.measurement.2024.115764 |
| 通讯作者 | Tang, Qixing(qxtang@ahau.edu.cn) |
| 英文摘要 | The combination of laser absorption spectroscopy and computed tomography (CT) has been extensively applied to two-dimensional concentration field reconstruction. Additional optical paths are required to fulfill inversion requirements to ensure measurement accuracy, and the traditional two-dimensional (2D) measurement space range is approximately 1 square meter (m2) or even smaller. However, the traditional two-dimensional measurement method is no longer suitable for accurately reconstructing large-scale open spaces. In this paper we proposed a fast concentration field reconstruction method for two-dimensional geometric paths. Firstly, a twodimensional geometric path with six optical paths is designed. After obtaining the spectral signals from these paths and before beginning iterations, the integral absorbance is used to predict if there is a gas leakage in the grids the light paths traverse, further simplifying the overall path. Then, the remaining spectral signals were iterated, and the bi-cubic interpolation operation is applied to optimize the two-dimensional array, enhancing the resolution of the reconstructed two-dimensional distribution image. Finally, the location of the gas leakage source is determined. Subsequently, a system is developed to reconstruct the concentration field under the twodimensional geometric path. Simulation experiments under three ammonia simulation reconstruction models were designed, and the errors r were calculated as 1.49, 1.99, and 1.63, with iterations of 128, 179, and 102, respectively. It can be observed that the number of iterations is significantly reduced without compromising the detection accuracy. Furthermore, the ammonia leakage two-dimensional detection experiments have been conducted to confirmed the reliability and validity of the proposed method for two-dimensional detection of open optical paths. |
| 资助项目 | National Natural Science Foundation of China[52105539] ; Anhui Natural Science Foundation[2108085QD179] ; National Engineering Technology Research Center[2005DP173065-2022---01] ; Key Laboratory of Agricultural Sensors, Ministry of Agri-culture and Rural Affairs, Anhui Provincial Key Laboratory of Smart Agricultural Technology and Equipment, Anhui Agricultural University[KLAS2022KF011] ; Natural Science Research for Universities in Anhui Province[KJ2020A0104] ; Anhui Province New Energy Vehicle and Intelligent Connected Automobile Industry Technology Innovation |
| WOS研究方向 | Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:001320487500001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Anhui Natural Science Foundation ; National Engineering Technology Research Center ; Key Laboratory of Agricultural Sensors, Ministry of Agri-culture and Rural Affairs, Anhui Provincial Key Laboratory of Smart Agricultural Technology and Equipment, Anhui Agricultural University ; Natural Science Research for Universities in Anhui Province ; Anhui Province New Energy Vehicle and Intelligent Connected Automobile Industry Technology Innovation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135743]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Tang, Qixing |
| 作者单位 | 1.Anhui Agr Univ, Key Lab Agr Sensors, Anhui Prov Key Lab Smart Agr Technol & Equipment, Minist Agr & Rural Affairs, Hefei, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China 3.Anhui Agr Univ, Coll Engineer, Hefei 230036, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qi,Tang, Qixing,Zhang, Yujun,et al. Research on rapid concentration field reconstruction method for two-dimensional geometric paths based on laser absorption spectroscopy[J]. MEASUREMENT,2025,241. |
| APA | Li, Qi.,Tang, Qixing.,Zhang, Yujun.,Gao, Hua.,Rao, Yuan.,...&Wang, Yuwei.(2025).Research on rapid concentration field reconstruction method for two-dimensional geometric paths based on laser absorption spectroscopy.MEASUREMENT,241. |
| MLA | Li, Qi,et al."Research on rapid concentration field reconstruction method for two-dimensional geometric paths based on laser absorption spectroscopy".MEASUREMENT 241(2025). |
入库方式： OAI收割
来源：合肥物质科学研究院
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