光电编码器信号抗干扰算法

Anti-disturbing Arithmetic of Photoelectric Encoder Signal

单片机与光电编码器接口在许多场合得到应用 ,但在单片机接收光电编码器信号过程中 ,由于环境的影响 ,往往会出现一些机械抖动干扰和电气干扰 ,从而造成误计数。文章提出了一个新算法 ,可以有效地消除抖动和干扰的影响。通过实际运行证明 ,该方法可靠性好 ,成本低廉。

Interface between the SCM and the photoelectric encoder has been applied in so many conditions, but when the SCM receives signal from the photoelectric encoder, because of the influence of environment, there exists some mechanical dithering or electrical disturbing, which causes erroneous counting.A new arithmetic is given, which can eliminate the dithering and disturbing effectively. This method is proved to be reliable by the practice, and the method is also at a low cost price.