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LCTF成像光谱技术是近年来快速发展的一种成像光谱技术,具有光谱分辨率高、谱段范围宽、质量轻等诸多优点,在月球矿物探测高光谱成像遥感器中具有独特的优势。LCTF中液晶材料温度变化会引起双折射率偏差变大,从而影响LCTF光谱仪成像质量。通过对光谱仪工作环境的热分析,综合考虑光谱仪的工作模式及各部件工作温度要求,设计了LCTF光谱仪热控系统。仿真结果表明,该热控系统能较好地满足设计要求,使LCTF光谱仪清晰成像,为月球矿物探测做好硬件准备。
LCTF imaging spectroscopy is a rapidly developing imaging spectroscopy technique in recent years. It has many advantages such as high spectral resolution, wide spectral range and light weight. It has unique advantages in lunar mineral exploration hyperspectral remote sensing. LCTF liquid crystal material temperature will cause birefringence deviation becomes larger, thus affecting the LCTF spectrometer imaging quality. Through the thermal analysis of the working environment of the spectrometer, the thermal control system of the LCTF spectrometer was designed considering the operating mode of the spectrometer and the working temperature of each component. The simulation results show that the thermal control system can better meet the design requirements, make the LCTF spectrometer clear imaging, make the hardware preparation for lunar mineral exploration.