基于PC机的方波信号周期测试方法研究与应用

给出了用 PC机测量方波信号周期的两种测试方法 :一种是将方波信号作为模拟信号送入计算机 ,通过 A/D转换为数字信号后再经过相应计算得出方波信号的周期 ;另一种是将方波信号作为开关量送入计算机 ,通过软件计数的方法直接得出方波信号的周期。同时 ,对这两种方法进行了较为详细的比较研究 ,指出了这两种方法各自的优缺点 ,并给出了一些应用实例

Measurementof Pulse Signal Period and Its Application Based on Computer

This paper gives two methods for measuring pulse signal period based on a per- sonal computer:one is that the pulse signal is considered as an analog one and transformed into a digital one by A/D,and then its period is obtained by computing;the other is that the pulse signal is considered as a digital one and the period is obtained by software counting method.A detailed comparison between these two methods is made and some practical appli- cations are also given.