Abstract A miniature pulse tube cooler is presently under development in partnership between AL/DTA, CEA/SBT and THALES Cryogenics. The Engineering Model foreseen is aiming at providing 800 mW at 80 K with 40 watts input power to the motors of the compressor. A development phase has been performed with an in-line architecture for the pulse tube cold finger connected to an existing flexure bearing compressor from Thales Cryogenics. Presently, more than 900 mW at 80 K has been achieved at 288 K ambient temperature provided by water cooling, in inertance mode, and with less than 25 watts PV work. The development phase is presented as well as the various trade-offs made, both on the cold finger and compressor side, to cope with the thermal, mechanical and electrical environmental specifications. The impact of the matching between compressor and pulse tube cold finger is also discussed. This work is performed in the framework of a Technological Research Program funded by the European Space Agency. An Engineering Model will be delivered to ESA/ESTEC in February 2003. This coming generation of miniature pulse tube coolers will be used for the cooling down of detectors in future earth observation missions.


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    Titel :

    Miniature 50 to 80 K Pulse Tube Cooler for Space Applications


    Beteiligte:
    Trollier, T. (Autor:in) / Ravex, A. (Autor:in) / Charles, I. (Autor:in) / Duband, L. (Autor:in) / Mullié, J. (Autor:in) / Bruins, P. (Autor:in) / Benschop, T. (Autor:in) / Linder, M. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2003-01-01


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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