单片机自动测频技术探讨

Research on automatic measurement of frequeney with single chip computor

本文提出了一个自动测频的概念,根据测量精度的要求,利用单片机的软件功能,自动切换闸门时间或转换为测量周期,从而实现了全范围的等精度频率测量。

The author puts forward a way of automatically measuring frequency. By using the software function of single chip microcomputers, it can automatically selects gate time or changes into measuring period on basis of the requirement of measure precision, thus materializing equal—precision to the full measurement range.