Vibrating-Wire, Supercooled Liquid Water Content Sensor Calibration and Characterization Progress
Vibrating-Wire, Supercooled Liquid Water Content Sensor Calibration and Characterization Progress
复制标题
振弦式过冷液态水含量传感器校准和表征进展
DOI：
10.2514/6.2016-4055
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发表时间：
2016
影响因子：
2.2
通讯作者：
F. Bunt
中科院分区：
文献类型：
--
作者：
M. King;J. Bognar;D. Guest;F. Bunt
2015年冬季，NASA在格伦研究中心使用气象气球进行了一次实地活动，为NASA结冰遥感系统生成验证数据库。气象气球携带了一个专门的，一次性的，振动线传感器，以确定过冷液态水的含量。在校准和表征这些传感器方面已经取得了重大进展。在专门研制的低速结冰风洞中对振弦式传感器进行了标定试验，并对结果进行了分析。传感器的积冰行为也被记录和分析。最后，对气球探测的活动后评价显示，传感器数据随着高度的增加而逐渐漂移。对这种行为进行了分析，并开发了一种校正数据漂移的方法。
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.