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本文设计了用单板机实时测量并显示交流信号的频率和幅度的硬件电路和软件程序.使之能在自动控制、测试电脑化的大型系统中,实时地、准确地监控交流信号频率和幅度的变化.
This paper designs a hardware circuit and a software program which real-time measure and display the frequency and amplitude of the AC signal with a single-board computer, so that it can monitor the frequency and amplitude of the AC signal in real time and accurately in the large-scale system of automatic control and testing computer The change.