200kHz超声波二维风速测量系统设计

摘要

The wind speed is one of the important meteorological elements in weather forecast accurate wind speed measurement affects the production and living of human beings.The sensors of two-dimensional ultrasonic wind speed are widely used in various fields.The time difference method is one of the commonly used methods for ultrasonic wind speed measurement.Using this method and calibrating the error caused by various factors,we designed the system of 200 kHz ultrasonic two-dimensional wind speed measurement based on the MSP430 microprocessor.The hardware and software of the system adopt the modular design,which can improve the flexibility and stability of the system.Through the test,the system can be used for the real-time measurement of the wind speed and the direction.%风速是天气预报中需要观测的重要气象要素,精确的风速测量影响着人类的生产生活.二维超声波风速传感器在各领域应用广泛.时差法是超声波进行风速测量常用的方法之一.应用此方法,并对各种因素造成的误差进行校准,设计基于MSP430微处理器的200kHz超声波二维风速测量系统,系统软件、硬件均采用模块化设计,提高了系统的灵活性和稳定性.通过测验,该系统能够实时测量风速的大小及方向.