螺旋桨测风仪风洞测试及不确定度分析  

Measurement and Uncertainty Analysis of Propeller Anemometer in Wind Tunnel

作　　者：李松奎[1] 贺晓雷[1] 边泽强[1] 刘昕[1] LI Songkui;HE Xiaolei;BIAN Zeqiang;LIU Xin(Meteorological Observation Centre of CMA,Beijing 100081)

机构地区：[1]中国气象局气象探测中心,北京100081

出　　处：《气象科技》2021年第4期524-528,共5页Meteorological Science and Technology

摘　　要：本文借鉴国标GB/T-24559海洋螺旋桨式风向风速计中的测试方法及测试点,在低速直路风洞中,对螺旋桨测风仪进行测试,并依据JJF1059.1-2012测量不确定度的评定与表示要求,对风速7个校准点分别进行重复试验,采用极差法进行A类不确定度评定,并分析测试过程中的B类不确定来源,进行B类不确定度评定。结果表明:在WZ860070-E型直路风洞中对螺旋桨测风仪进行风速校准测试的方法是可行的。同时,2m/s以上各测试点均能满足3倍量传关系。Based on the GB/T-24559 marine propeller anemometer test methods and test points,the propeller anemometer was tested in the low-speed wind tunnel.According to the JJF1059.1-2012 measurement uncertainty evaluation and expression requirements,seven calibration points of wind speed were tested repeatedly,and the range method was used to evaluate the type A uncertainty.The sources of type B uncertainty in the testing process are analyzed and the type B uncertainty is evaluated.The results show that it is feasible to calibrate the propeller anemometer in the WZ860070-E wind tunnel.At the same time,each test point above 2 m/s can meet the three times of the quantitative transmission relationship.

关 键 词：螺旋桨测风仪 校准 风洞 不确定度 

分 类 号：P412.1[天文地球—大气科学及气象学] TN91[电子电信—通信与信息系统]