摘要
本文介绍了一种基于现场可编程门阵列(FPGA)的光电编码器数据采集系统,提出了测速算法-变M/T法,讲述了鉴相、四倍细分及测速的原理。并给出了硬件设计电路。
A kind of data collection system of incremental encoders is introduced based on FPGA, proposed a way of measure velocity-the method of alterable M/T, and described the principle of the four foldfrequency subdivision, the direction-judgment and the method of measure velocity. And the hardware circuit design was also given.
出处
《仪器仪表用户》
2008年第3期90-92,共3页
Instrumentation
关键词
光电编码器
鉴相
四倍细分
测速
incremental encoders
direction-judgment
four fold-frequency subdivision
measure velocity
