应用89C51单片机测量矿井风机转速

Study on measuring system of blower fan rotational speed based on 89C51 single chip microcomputer

为测量风机的转速,用光电码盘及光电接收器为信号发生器,设计了一种基于89C51单片机的转速测量系统。分析了系统工作原理,给出了信号采集硬件设计电路以及数据存储、显示结构电路,给出了软件设计流程。对M算法精确度进行了计算。理论和实验结果显示,测量系统能够保证测量的实时性,测量精度高,可适用于中高转速的测量。

In this paper, the measurement system of blower fan rotation speed by using photoelectric coder and photoelectric receiver as signal generator was designed based on 89C51-MCU. The system principle was analyzed, the interface circuit of data acquisition,data storage and data display was designed in hardware, and the software flow was presented. The accuracy of M-algorithm was accounted. Just as the theory and experimental results, the real-time and high-accuracy of measurement was implemented by the measurement system theory analyze and experiment, which can be used to measure the middling and height speed system.