全景双谱段红外成像干涉光谱测量反演仪器

吕金光; 梁静秋; 赵百轩; 赵莹泽; 郑凯丰; 陈宇鹏; 王维彪; 秦余欣; 陶金

doi:10.37188/CO.2022-0114

全景双谱段红外成像干涉光谱测量反演仪器

doi: 10.37188/CO.2022-0114

中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室, 吉林长春 130033

基金项目: 国家自然科学基金（No. 61805239，No. 61627819，No. 61727818）；中国科学院青年创新促进会基金（No. 2018254）；吉林省科技发展计划（No. 20190303063SF，No. 20180201024GX，No. 20150520101JH）

详细信息

作者简介:
吕金光（1984—），男，吉林蛟河人，博士，副研究员，博士生导师，中国科学院青年创新促进会会员，2008年于吉林大学获得学士学位，2013年于中国科学院长春光学精密机械与物理研究所获得博士学位，主要从事相干光谱成像与光学信息处理方面的研究。E-mail：jinguanglv@163.com

梁静秋（1962—），女，吉林长春人，博士，研究员，博士生导师，1984年于吉林大学获得学士学位，2003年于中国科学院长春光学精密机械与物理研究所获得博士学位。主要从事微光机电系统、红外光谱技术及红外光学仪器方面的研究。E-mail：liangjq@ciomp.ac.cn

中图分类号: O433.1
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出版历程
- 收稿日期: 2022-06-03
- 修回日期: 2022-06-20
- 网络出版日期: 2022-08-03

Panoramic bispectral infrared imaging interference spectrum measurement inversion instrument

State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Funds: Supported by National Natural Science Foundation of China (No. 61805239，No. 61627819，No. 61727818); Foundation of Youth Innovation Promotion Association of Chinese Academy of Sciences (No. 2018254); Science and Technology Development Project of Jilin Province (No. 20190303063SF，No. 20180201024GX，No. 20150520101JH)

More Information

Corresponding author: jinguanglv@163.com; liangjq@ciomp.ac.cn

摘要

摘要:
为了满足工业污染排放及突发安全事故对在线实时监测分析仪器的迫切需求，提出了全景双谱段红外成像干涉光谱测量反演仪器。通过双通道干涉系统、双谱段成像系统及方位俯仰轴系的协同设计，实现目标场景图像光谱信息的大视场、宽谱段、高分辨率测量。首先，根据傅立叶光学理论，建立了干涉成像光谱的标量衍射理论模型；然后，基于宽带采样与窄带采样理论，对双通道干涉系统进行采样设计，并在分析干涉成像特点的基础上，对双谱段成像系统进行光学设计；最后，研制了原理样机，并开展了烟囱排放气体烟羽的遥测实验。该仪器可以实现360°×60°大视场空间场景中3~5 μm和8~12 μm中长波红外光谱范围内4 cm⁻¹分辨率的光谱测量，满足排放监测定性识别与定量分析的应用要求。
- 成像干涉光谱仪 /
- 双通道干涉 /
- 双谱段成像 /
- 全景 /
- 采样
Abstract:
In order to satisfy the urgent needs of on-line real-time monitoring and analysis instrument for industrial pollution emission and sudden safety accidents, a panoramic bispectral infrared imaging interference spectrum measurement inversion instrument is proposed. Through the collaborative design of dual channel interference system, dual spectral imaging system, azimuth and elevation axis system, the measurement of image spectrum information of target scene with large field of view, wide spectral band and high resolution is realized. First, based on Fourier optics theory, the scalar diffraction theoretical model of interference imaging spectrum is established. Then based on broadband sampling and narrowband sampling theory, the sampling design of dual channel interference system is carried out. Based on the analysis of the interference imaging characteristics, the optical design of the dual band imaging system is carried out. Finally, the principle prototype is completed, and the telemetry experiment of the gas plume emitted by the chimney is carried out. The instrument can realize spectral measurement with resolution of 4 cm⁻¹ in large field of view by 360°×60° and wide spectral range from 3~5 μm to 8~12 μm. The instrument can satisfy the application requirements of qualitative identification and quantitative analysis for gas emission monitoring.
- imaging interference spectrometer /
- dual channel interference /
- dual spectral imaging /
- panoramic /
- sampling

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图 1 全景双谱段红外成像干涉光谱测量反演仪器原理图

Figure 1. Schematic diagram of panoramic bispectral infrared imaging interference spectrum measurement inversion instrument

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图 2 多级微反射镜对像场的光程调制示意图

Figure 2. Schematic diagram of the image field modulation by multi micro mirror

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图 3 望远成像系统的光学设计图

Figure 3. Optical design drawing of the telescopic imaging system

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图 4 中波红外中继成像系统的光学设计图

Figure 4. Optical design drawing of MWIR relay imaging system

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图 5 长波红外中继成像系统的光学设计图

Figure 5. Optical design drawing of LWIR relay imaging system

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图 6 中波红外成像通道的光学设计图

Figure 6. Optical design of MWIR imaging channel

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图 7 长波红外成像通道的光学设计图

Figure 7. Optical design of LWIR imaging channel

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图 8 中波红外成像通道的调制传递函数

Figure 8. MTF of MWIR imaging channel

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图 9 长波红外成像通道的调制传递函数

Figure 9. MTF of LWIR imaging channel

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图 10 双通道干涉系统与双谱段成像系统的光路耦合

Figure 10. Optical path coupling between the dual channel interference system and the dual spectral imaging system

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图 11 全景双谱段红外成像干涉光谱测量反演仪器样机

Figure 11. Prototype of the infrared imaging interference spectrometer

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图 12 乙腈样品的测量透过率光谱

Figure 12. Measured transmittance spectra of acetonitrile

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图 13 氨气样品的测量透过率光谱

Figure 13. Measured transmittance spectra of ammonia

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图 14 波数标定后的滤光片透射光谱

Figure 14. Filter transmission spectrum by wavenumber calibration

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图 15 系统测量数字亮度谱

Figure 15. Digital number spectrum measured by system

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图 16 辐亮度标定系数

Figure 16. Radiance calibration coefficient

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图 17 辐亮度标定后的黑体辐射谱及平均残差比

Figure 17. Blackbody spectrum after radiance calibration and average residual ratio

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图 18 系统对于气体烟羽排放的遥测模型

Figure 18. Telemetry model of the system for gas plume emission

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图 19 红外全景图像

Figure 19. Infrared panoramic image

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图 20 热烟羽的气体浓度反演图像

Figure 20. Inversion image of gas concentration of gas plume

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