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为满足空间大气遥感的迫切需求,设计并研制了用于大气痕量气体探测的紫外/可见临边成像光谱仪原型样机,对应工作波段为560～780nm和280～390nm,分别利用光栅的一级和二级衍射。样机由单块离轴抛物面望远镜和改进型Czerny-Turner光谱仪组成,在整个工作波段内,弥散斑半径的均方根(RMS)值均小于10μm,同时获得了良好的成像质量。原型样机质量为15kg,体积为500mm×350mm×200mm,空间分辨力为0.44mrad,光谱分辨力为1.52nm。利用原型样机进行了外场观测试验,并对外场观测光谱数据与模拟光谱数据进行了对比,发现二者具有很好的一致性,表明了临边成像光谱仪的功能和性能均良好,可以满足大气痕量气体探测的应用要求。
In order to meet the urgent need of space atmosphere remote sensing, a prototype of ultraviolet / visible edge imaging spectrometer for atmospheric trace gas detection was designed and developed, corresponding to 560 ~ 780nm and 280 ~ 390nm working wavelength band, Second order diffraction. The prototype consists of a single off-axis parabolic telescope and an improved Czerny-Turner spectrometer. The root mean square (RMS) radius of the speckle is less than 10 μm and a good image quality is achieved. Prototype prototype mass of 15kg, a volume of 500mm × 350mm × 200mm, the spatial resolution of 0.44mrad, spectral resolution of 1.52nm. The field experiment was carried out by using the prototype prototype, and the comparison between the observed and observed spectral data was done. The results show that the two are in good agreement, which shows that the performance and performance of the edge imaging spectrometer are good, Volume gas detection application requirements.