The short-wavelength spectrometer is to be flown on the European Space Agency's Infrared Space Observatory, planned for 1992. This cryogenic instrument employs rotating mirrors to vary the angle of incidence on fixed gratings. These mirrors are mounted on flexural pivots and driven by means of a linear motor. The design and the measured performance of a prototype are discussed. The mirrors can be rotated over an angle of 12 , with a power dissipation in the cryostat of less than 5 mW. First measurements, with an inductive position sensor in a feed-back loop indicate an angular position reproducibility better than the required 3 seconds.


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    Title :

    Grating drive for the short-wavelength spectrometer in ISO


    Additional title:

    Gitterantrieb fuer das Kurzwellenlaengen-Spektrometer im Rahmen des ISO-Projekts


    Contributors:

    Published in:

    Cryogenics ; 27 , 2 ; 68-72


    Publication date :

    1987


    Size :

    5 Seiten, 2 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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