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Spectrometer system and a method for compensating for time periodic perturbations of an interferogram generated by the spectrometer system
Spectrometer system and a method for compensating for time periodic perturbations of an interferogram generated by the spectrometer system
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机译:光谱仪系统和用于补偿由光谱仪系统生成的干涉图的时间周期扰动的方法
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摘要
A spectrometer system comprises a scanning interferometer; a drive system mechanically coupled to a movable reflector element of the scanning interferometer and operable to effect reciprocation of the movable reflector element at a plurality, preferably more than two, for example three, different scan speeds; a detector arrangement configured to sample at equidistant time intervals an interferogram formed by the scanning interferometer to generate a sampled interferogram; and a data processor is adapted to acquire a sampled interferogram at each of the plurality of different scan speeds and to perform a relative comparison of the content of the so acquired plurality of sampled interferograms.
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