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首页> 外文期刊>Pomiary Automatyka Kontrola >Hyperspectral LWIR measurements with imaging diffraction grating spectrometer and uncooled thermal camera
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Hyperspectral LWIR measurements with imaging diffraction grating spectrometer and uncooled thermal camera

机译：使用成像衍射光栅光谱仪和未冷却的热像仪进行高光谱LWIR测量

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摘要

This paper demonstrates how to perform hyperspectral infrared measurements with uncooled thermal camera and imaging spectrometer. Such thermal cameras are sensitive to wavelengths in the range of 7 - 14 um (LWIR). There is a description of a diffraction grating based spectrometer with Czerny-Turner optical configuration. To perform hyperspectral acquisition of thermograms it is required to have the camera synchronized with spectrometer, so that recorded frames correspond to known wavelengths. For this purpose the dedicated software was developed and it is also described in this paper, with its operation algorithm. There is a problem of thermal camera drift, and this paper proposes the solution to deal with it. Moreover a description how to obtain transmission plot and exemplary results is presented with the description of measurement rig. In addition, noise related issues are covered and discussed.
机译：本文演示了如何使用未冷却的热像仪和成像光谱仪进行高光谱红外测量。这种热像仪对7-14 um（LWIR）范围内的波长敏感。描述了具有Czerny-Turner光学配置的基于衍射光栅的光谱仪。为了执行热谱图的高光谱采集，需要使照相机与光谱仪同步，以便记录的帧对应于已知波长。为此，开发了专用软件，并在本文中对其进行了描述，并介绍了其操作算法。存在热像仪漂移的问题，本文提出了解决方法。此外，与测量装置的描述一起给出了如何获得透射图和示例性结果的描述。此外，还讨论了与噪声有关的问题。

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