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

Michael C. King | Zendy; John Bognar | Zendy; Daniel Guest | Zendy

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

Author(s) -

Michael C. King,

John Bognar,

Daniel Guest

Publication year - 2016

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2016-4055

Subject(s) - supercooling , calibration , water content , materials science , characterization (materials science) , liquid water , liquid water content , content (measure theory) , environmental science , nanotechnology , computer science , meteorology , thermodynamics , engineering , physics , geotechnical engineering , cloud computing , mathematics , quantum mechanics , operating system , mathematical analysis

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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