增量式光电脉冲编码器的单片机计数器

The Counter Based on Embed-Controller for Incremental Opto-Electric Encoder

文中重点讨论基于单片机的光电脉冲编码器计数器的软件倍频和辨向原理，并从编码盘条纹和位置检测元件的空间分布原理出发给出了在编码器输出Ａ、Ｂ正交方波的前提下最多只能４ 倍频的结论，最后介绍了集倍频、辨向、计数于一体的单片机计数器原理，该计数器具有消除抖动误计数、倍频数可选、计数长度无限制的特点。

This article mainly discusses the double frequency and discerning direction with software method of the counter based on embed-controller for incremental opto-electric encoder ,besides by the argumentation of the space location relationship of stripe of the encoder and the movement detecting component ,it comes to the conclusion that under the condition of that the encoder outputs only A、B phase square waves ,at most a quadruple frequency can be achieved, then introduces a counter based on embed-controller ,which is charactered by no shaking error counting,a optional double frequency time and no limit to the counting length, with all the functions such as double frequency 、discerning direction and counting。