无人机载超声测风仪测试方法研究

Research on Test Method of UAV Ultrasonic Anemometer

利用无人机携带超声测风仪是一种有价值的风场测量技术,可对多层次高度的风向风速进行探测,在气象和民用领域都具有十分广阔的应用前景。目前尚未有相关文献对机载测风仪测试方法的研究,根据机载测风仪的特性,提出实验室校准对所用的超声测风仪进行校准,及外场比对分不同高度与气象测风塔进行比对,以判断不同高度及风速情况下的数据准确情况。

It is a valuable wind field measurement technology to use ultrasonic anemometer installed in the UAV to detect the wind direction and wind speed at multi-level height. It has a very broad prospect in the meteorological and civil applications. At present, there is no research on the test method of airborne anemometer. According to the characteristics of airborne anemometer, this paper proposes a laboratory calibration method to calibrate the ultrasonic anemometer and compares different altitudes with the meteorological anemometer tower so as to determine data accuracy under different altitudes and wind speeds.