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Fourier spectroscopy with a transputer-based standard image processing system

A CCD camera setup is introduced which can be used to digitize the interferogram data of the Fizeau fringes of a Fourier spectrometer. To decrease costs we use a standard CCD chip (frame type) for digitization. It is cooled by a Peltier element which allows it to work even with relatively faint light sources. The frame grabber as well as the final analysis processor are Inmos T800 transputer based modules. Using these electronics the instrument is even capable of measuring spectra of slightly pulsed light sources.