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Vibrating-Wire, Supercooled Liquid Water Content Sensor Calibration and Characterization ProgressNASA 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.
Document ID
20160012484
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
King, Michael C. (NASA Glenn Research Center Cleveland, OH United States)
Bognar, John A. (Anasphere, Inc. Bozeman, MT, United States)
Guest, Daniel (Anasphere, Inc. Bozeman, MT, United States)
Bunt, Fred (Anasphere, Inc. Bozeman, MT, United States)
Date Acquired
October 21, 2016
Publication Date
October 1, 2016
Subject Category
Aerodynamics
Report/Patent Number
GRC-E-DAA-TN33532
E-19252
NASA/TM-2016-219129
Meeting Information
Meeting: Atmospheric and Space Environments Conference
Location: Washington, DC
Country: United States
Start Date: June 13, 2016
End Date: June 17, 2016
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 533127.02.02.03.02
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Icing
Aviation Meterorology
Balloon-borne Instruments

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