A microhygrometer has been developed at JPL's Microdevices Laboratory based on the principle of dewpoint/frostpoint detection. The surface acoustic wave device used in this instrument is approximately two orders of magnitude more sensitive to condensation than the optical sensor used in chilled-mirror hygrometers. In tests in the laboratory and on the NASA DC8, the SAW hygrometer has demonstrated more than an order of magnitude faster response than commercial chilled-mirror hygrometers, while showing comparable accuracy under steady-state conditions. Current development efforts are directed toward miniaturization and optimization of the microhygrometer electronics for flight validation experiments on a small radiosonde balloon.


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    Titel :

    Surface Acoustic Wave Microhygrometer


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Price, D. (Autor:in) / Cheng, D. Y. (Autor:in) / Cardell, G. (Autor:in) / Hoenk, M. E. (Autor:in) / Watson, R. K. (Autor:in) / VanZandt, T. R. (Autor:in) / Kaiser, W. J. (Autor:in)

    Kongress:

    International Conference On Environmental Systems ; 1997



    Erscheinungsdatum :

    01.07.1997




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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