CAJ | 학술논문

针对超声波测风仪的不断应用,在自然风场条件下实施了超声波测风仪和现有自动气象站机械旋转式测风仪的动态比对试验。通过对风向风速的采集数据进行处理分析,总结了超声波测风仪和机械旋转式测风仪的动态性能。试验结果表明,2种测风仪的2,10 min平均值可比较性偏差小于瞬时值；随着风速的增大,风速值的可比较性系统偏差向负向漂移,风速值的标准偏差增大,风向值的标准偏差减小。造成2种测风仪测量结果差异的原因主要是系统惯性特征、风场的自身湍流特性以及测风仪结构的不同造成流场特性的变异。
침대초성파측풍의적불단응용,재자연풍장조건하실시료초성파측풍의화현유자동기상참궤계선전식측풍의적동태비대시험。통과대풍향풍속적채집수거진행처리분석,총결료초성파측풍의화궤계선전식측풍의적동태성능。시험결과표명,2충측풍의적2,10 min평균치가비교성편차소우순시치；수착풍속적증대,풍속치적가비교성계통편차향부향표이,풍속치적표준편차증대,풍향치적표준편차감소。조성2충측풍의측량결과차이적원인주요시계통관성특정、풍장적자신단류특성이급측풍의결구적불동조성류장특성적변이。
Considering the continuous application of ultrasonic wind sensors, the dynamic comparison test between the ultrasonic wind sensor and the existing automatic meteorological station was conducted in natural wind field. Dy-namic performance of the mechanical rotary wind sensor and the ultrasonic wind sensor was summarized based on the analyzed collected data of wind speed and wind direction. The test result shows that the two kinds of wind sen-sors’ comparability system deviation of 2-minute and 10-minute-average-value is less than that of the instantaneous value, and that as wind speed increases, the comparability system deviation of wind speed drifts to negative, and standard deviation of wind speed value increases, while the standard deviation of wind direction value decreases. The difference between these two wind sensors’ measurement results is mainly caused by the different inertia char-acteristics of the systems, the turbulence in wind field and the different structure of wind sensors changing the tur-bulence characteristics.