采用脉冲计数法以单片机实现电容的测量

Capacity Measure of Single-chip Microcomputer by Using Pulse Counting

在一般的电容测量系统中,几乎都是根据普通的电路原理,用一些常规的方法来测量的,近年来随着计算机在社会领域的渗透,单片机的应用正在不断地走向深入。介绍了采用“脉冲计数法”,即利用555定时器来产生RC多谐振荡频率和单片机CPU的高速强大的计算及可编程功能,用软件查表的方法实现电容量高精度智能化的测量。

Generally, capacity is measured according to the normal theories of electricity and by using normal way. With the infiltration in the every field of the computer in recent years, the application of single-chip microcomputer is widely used. This thesis describes the way of pulses counting, using 555- timer to create RC shocking frequency , then carry out intelligent capacit measure with high accuracy by the fundamentals of single-chip microcomputer and software checking book.