Abstract Lockheed Martin’s Advanced Technology Center (LM-ATC) is developing the cryocooler system for the United States infrared instrument on the Russian-American Observational Satellites (RAMOS) under contract to the Space Dynamics Laboratory. The project is presently fabricating the engineering model, which consists of the cryocooler and electronic controller. LM-ATC s cryocooler is robust and simple, consisting of a two-stage coldhead with no moving parts, driven by a linear flexure-bearing compressor and powered by a high-efficiency electronic controller that includes ripple suppression and vibration cancellation. A distance of up to one meter separates the coldhead and compressor. The controller provides temperature control at 75K. The cryocooler is designed simultaneously to provide 0.75 W of cooling at 75K and 6 W cooling at 130K while rejecting heat at 313K. Total system power is 117 W and the exported vibration is less then 0.2N. This paper presents the status of the engineering model and overall system characteristics.


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    Title :

    Lockheed Martin RAMOS Engineering Model Cryocooler


    Contributors:
    Frank, D. (author) / Roth, E. (author) / Champagne, P. (author) / Olson, J. (author) / Evtimov, B. (author) / Clappier, R. (author) / Nast, T. (author) / Renna, T. (author) / Martin, B. (author)

    Published in:

    Publication date :

    2005-01-01


    Size :

    6 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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