NASA conducted a winter 2015 field campaign using weather balloons at the NASA Glenn Research Center to generate a validation database for the NASA Icing Remote Sensing System. The weather balloons carried a specialized, disposable, vibrating-wire sensor to determine supercooled liquid water content aloft. Significant progress has been made to calibrate and characterize these sensors. Calibration testing of the vibrating-wire sensors was carried out in a specially developed, low-speed, icing wind tunnel, and the results were analyzed. The sensor ice accretion behavior was also documented and analyzed. Finally, post-campaign evaluation of the balloon soundings revealed a gradual drift in the sensor data with increasing altitude. This behavior was analyzed and a method to correct for the drift in the data was developed.


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    Title :

    Vibrating-Wire, Supercooled Liquid Water Content Sensor Calibration and Characterization Progress


    Contributors:

    Conference:

    AIAA Atmospheric and Space Environments Conference ; 2016 ; Washington D.C., United States


    Publication date :

    2016-06-13


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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