Wind speed and direction is an important element of the weather,navigation and emergency-type automatic weather station in the measurement system that mobile wind speed and direction are required. Which need to be addressed is with the vehicle moves,the position and speed of base is changing,and the need for measured wind speed and direction for transformation. This paper designed an ultrasonic wind speed and direction measurement system by using three pairs ultrasonic transducer measuring wind speed and direction,realized position and velocity measurements through the electronic compass and speed measuring device, and completed measurement of wind speed and direction data calibration and transmission by microprocessor.%为了解决传统式测风仪器无法应用于航海和应急式车载自动气象站等测风领域的问题,设计了一种移动式超声波风速风向测量系统,其需要解决的问题有:随着载体的移动,基座的方位和速度发生变化,因此,需要在对系统方位和载体速度进行测定的同时,对测量到的风速风向参数进行系统修正.系统包括:利用3对超声波换能器完成三维风速风向测量,通过电子罗盘和系统自带的速度测量单元分别实现方位和速度测量,通过微处理器实现风速风向的校正及测量数据的传输.
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