Abstract
A new type of IR spectrometer has been developed for balloon experiments on spectral measurement in the 2–5-μm region with a solar occultation method. The spectrometer is based on multichannel spectroscopy using a pyroelectric vidicon as the detecting sensor. In order to improve the spectral resolution and the dynamic range of the signal, the spectrum is divided into three spectra which are focused in parallel to each other on the target of the vidicon. The present spectrometer turns out to be applicable to a spacecraft-borne IR spectrometer.
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