Infrared Gas Detection and Concentration Inversion Based on Dual-Temperature Background Points
文献类型：期刊论文
| 作者 | S. P. Wu, X. Zhong, Z. Qu, Y. H. Wang, L. Li and C. L. Zeng |
| 刊名 | Photonics
 |
| 出版日期 | 2023 |
| 卷号 | 10期号:5页码:19 |
| DOI | 10.3390/photonics10050490 |
| 英文摘要 | Gas detection based on infrared thermal imaging is applied in many areas, but it is generally applied as a qualitative detection method to observe the target area; on the other hand, quantitative research on gas concentration is less common, the measurement accuracy is poor, and the calculation method of concentration in the commonly adopted transmission model is also complicated. In this paper, based on the radiance transfer model of gas infrared imaging technology, the influence of gas concentration, gas temperature, and background temperature on gas imaging detection is investigated, a gas detection and concentration inversion method based on dual-temperature background points is proposed, and the effects of the choice of reference band on background temperature correction are analyzed in relation to the changing trend of dual-band radiance difference. To verify the effectiveness of this method, a gas detection system with dual-temperature background spots was constructed in this paper utilizing a cooled mid-wave infrared focal plane detector plus a reference filter and a measurement filter, which achieved a promising concentration accuracy of less than 10% for carbon dioxide at a detectable range. Meanwhile, an infrared imaging system with a noise equivalent temperature difference (NETD) of 40 mK was employed to simulate the detection of methane, which enables the detection and concentration inversion of methane gas at a minimum concentration of 500 ppm & BULL;m at a distance of 1 km, which proves the capability of long-range detection. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/68033]  |
| 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 | S. P. Wu, X. Zhong, Z. Qu, Y. H. Wang, L. Li and C. L. Zeng. Infrared Gas Detection and Concentration Inversion Based on Dual-Temperature Background Points[J]. Photonics,2023,10(5):19. |
| APA | S. P. Wu, X. Zhong, Z. Qu, Y. H. Wang, L. Li and C. L. Zeng.(2023).Infrared Gas Detection and Concentration Inversion Based on Dual-Temperature Background Points.Photonics,10(5),19. |
| MLA | S. P. Wu, X. Zhong, Z. Qu, Y. H. Wang, L. Li and C. L. Zeng."Infrared Gas Detection and Concentration Inversion Based on Dual-Temperature Background Points".Photonics 10.5(2023):19. |
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