基于FPGA的光电编码器四倍频电路设计  

Fourfold Frequency Multiplication Circuit Design of Incremental Opto-electric Encoder Based on FPGA

作　　者：钞靖[1] 王小椿[1] 姜虹[1] 

机构地区：[1]北京交通大学机电学院,北京100044

出　　处：《仪表技术》2007年第6期17-18,21,共3页Instrumentation Technology

摘　　要：分析光电编码器四倍频原理,提出了一种基于可编程逻辑器件FPGA对光电编码器输出信号倍频、鉴相、计数的具体方法,有利于提高被控对象的测量精度和控制精度。This article researches on the incremental opto-electric encoder and analyze its fourfold frequency multiplication principle, it gives a method based on FPGA to multiply the signal of the incremental opto-electric encoder, differentiates its phase and counts its number, the controled object＇s precision of measure and control can be heightened.

关 键 词：FPGA 光电编码器 四倍频 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]