杯式风速传感器现场核查方法的研究

Discussion of the Field Verification Method of Cup Anemometer

目前,由于全国区域自动气象站数量过大且计量条件有限,使风速传感器无法实现风洞实验室计量,通过实验发现现场核查方法未考虑风杯与传感器之间轴阻力,从而导致传感器检测结果失真。为解决这一问题,本文提出利用一种新型便携式风洞发生器模拟风速,根据低风速点(1m/s、2m/s、3m/s、5m/s、8m/s、10m/s)拟合得到的线性方程延伸至高风速点(20m/s、30m/s、40m/s),并通过实验验证该方法的可行性和准确性。

At present, wind speed sensor fails to realize wind tunnel laboratory measurement due to the excessive number of regional automatic meteorological stations in the country and the limitation in measurement.The experimental results show that the use of field verification method did not take the axial resistance between the wind cup and the sensor into account, which caused the distortion in the sensor detection results.To address this problem, a new portable wind tunnel generator, mentioned in this paper, will be used to simulate the wind speed, which works mainly through the linear equation fitted from the low wind speed point(1 m/s, 2 m/s, 3 m/s, 5 m/s, 8 m/s, 10 m/s) extending to the high wind speed point(20 m/s, 30 m/s, 40 m/s),in addition, its feasibility and accuracy of the proposed method would be verified by the experiment.