一、项目背景目前,常用的风速测量仪器有风杯风速仪、毕托管(或称皮托管)风速仪、热线热膜风速仪、超声波风速仪等。风杯风速仪一般由三四个半球形或抛物锥形的空心杯壳组成,杯壳固定在互成120°角的支架上或互成90°角的十字形支 First, the project background At present, the commonly used anemometer anemometer wind speed, Bi Tuo tube (or pitot tube) anemometer, hot wire anemometer, ultrasonic anemometer and so on. Cup anemometer is generally composed of three or four hemispherical or parabolic cone-shaped hollow cup shell, the cup shell is fixed to each other at a bracket angle of 120 ° or cross each other at a 90 ° angle