Improved Joule-Thomson cooler maintains nearly constant temperature. Absolute-pressure relief valve helps stabilize temperature of cold head despite variations in atmospheric pressure. Feedback-controlled electrical heater provides additional stabilization. Demand-flow Joule-Thomson valve requires less nitrogen than fixed-orifice Joule-Thomson valve providing same amount of cooling. Provides stable low temperatures required for operation of such devices as tunable diode lasers in laboratory and balloon-borne instruments detecting contaminants in atmosphere.


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    Titel :

    Joule-Thomson Cooler Produces Nearly Constant Temperature


    Beteiligte:
    Bard, Steven (Autor:in) / Wu, Jiunn-Jeng (Autor:in) / Trimble, Curtis A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.1992



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Joule-Thomson cryogenic cooler with extremely high thermal stability

    BARD, STEVEN / WU, J. / TRIMBLE, CURT | AIAA | 1991


    Joule-Thomson data curves

    Beimgraben, H. W. | NTRS | 1976


    Spring-Loaded Joule-Thomson Valve

    Jones, J. A. / Britcliffe, M. J. | NTRS | 1986


    Stacked Planar Joule-Thomson Cryocooler

    Hsu, I. C. / Wu, S. S. / Osborne, E. A. et al. | British Library Conference Proceedings | 1997


    Stacked planar Joule-Thomson cryocooler

    Hsu, I. / Wu, S. / Osborne, E. | AIAA | 1997