长波红外干涉光谱成像仪比较及变间隙法布里-珀罗型光谱成像仪设计

doi:10.3969/j.issn.1000-1093.2019.08.012

摘要/Abstract

摘要： 长波红外光谱成像技术在矿物探测、危险化学品识别等方面有广阔应用前景。针对长波干涉光谱成像技术的小型化及多平台应用需求，分析了两反射面Sagnac型、三反射面Sagnac型、静态Michelson干涉型、摆臂式Michelson干涉型和变间隙法布里-珀罗（F-P）干涉型5种常用的干涉型光谱成像仪方案，从体积、稳定性、装调精度要求和光学系统复杂度等方面比较了各方案的优缺点，研制了变间隙F-P光谱成像仪原理样机。采用重排、切趾、傅里叶变换、光谱辐射标定等处理方法准确反演出目标的光谱，并使用该原理样机对甲基磷酸二甲脂化学品进行了探测试验，其测试结果与高精度MR170光谱仪测试结果一致。

关键词: 红外光谱成像, 干涉光谱, 方案比较, 数据处理

Abstract: Long-wave infrared (LWIR) spectral imaging technology has broad application prospects in mineral detection and identification of hazardous chemicals. Five kinds of common interference spectral imagers, such as two-sided Sagnac type, three-sided Sagnac type, static Michelson type, swing arm Michelson type and variable gap Fabry-Perot (F-P) type, are analyzed for the miniaturization and multi-platform application of LWIR spectral imaging technology. The advantages and disadvantages of these imagers are analyzed from the aspects of volume, stability, accuracy requirements, and optical system complexity. A prototype of variable gap F-P spectral imager was developed. The rearrangement, apodization, Fourier transform, spectral radiation calibration and other processing methods are used to accurately invert the target spectrum. The chemical DMMP was tested using the prototype imager, and the test result is consistent with that of MR170 high precision spectrometer. Key

Key words: infraredspectralimaging, interferencespectrum, schemecomparison, dataprocessing

中图分类号:

TH744.3

孟合民, 高教波, 王楠, 吴江辉, 高泽东, 赵宇洁, 刘方. 长波红外干涉光谱成像仪比较及变间隙法布里-珀罗型光谱成像仪设计[J]. 兵工学报, 2019, 40(8): 1641-1647.

MENG Hemin， GAO Jiaobo， WANG Nan， WU Jianghui， GAO Zedong， ZHAO Yujie， LIU Fang. Comparison of Long-wave Infrared Interferometric Spectral Imagers and Design of Variable Gap F-P Type Spectral Imager[J]. Acta Armamentarii, 2019, 40(8): 1641-1647.

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第40卷
第8期2019 年8月兵工学报ACTA
ARMAMENTARIIVol.40No.8Aug.2019

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