摘要
介绍了超声波时差法风速测量的基本原理,以及基于ARM微控制器的风速测量系统的实现方法。给出了以LPC2131芯片为核心的硬件设计的总体框图。详细地阐述了放大滤波电路、外围接口电路的设计,以及超声波风速测量系统的软件设计。系统具有结构简单、精度高、功耗低和扩展方便等特点。
Ultrasonic wind velocity measurement with time-difference method and wind velocity measurement system based on ARM micro-controller were introduced. Principle graphic of the hardware design based on LPC2131 was given. The amplifier and filter circuits and the peripheral interface were expatiated in detail, and the sofeware design was introduced. The system has the ad- vantages of simple structure, high precision, low power dissipation and is convenient to extend.
出处
《仪表技术与传感器》
CSCD
北大核心
2009年第6期101-102,106,共3页
Instrument Technique and Sensor
关键词
ARM微控制器
超声波
时差法
风速测量
ARM micro-controller
ultrasonic
time-difference method
wind velocity measurement
