基于ARM+CPLD的高精度超声波风速仪的设计

摘要

The principle of measurement of wind speed and direction using ultrasonic wave time difference method is introduced followed by related algorithms, the design of ultrasonic wave anemometer based on ARM +CPLD is described in details. In addition, an effective algorithm dealing with the average wind direction problems near 0° (360°) is proposed. An absolute wind speed measurement model is provided using a baroceptor for practical wind measurement applications. The designed ultrasonic wave anemometer has important reference application value in environmental monitoring and wind power generation.%分析了运用超声波时差法测量风速风向的基本原理,介绍了风速风向的相关算法,重点给出了基于ARM +CPLD的超声波风速风向仪原型设计.同时提出了一种处理0°(360°)附近平均风向问题的算法,结合实际运用(风力发电)给出了一种运用气压传感器进行绝对风速测量的理论模型.所设计的超声波风速风向仪对环境监测和风力发电等具有重要的参考应用价值.