双读数系统编码器设计  

Encoder Design of Double Reading System

作　　者：穆如传 石洪 周柏 章帆 Mu Ru-chuan;Shi Hong;Zhou Bai;Zhang Fan(Lianyungang JARI Electronic Company,Jiangsu Lianyungang 222006)

机构地区：[1]连云港杰瑞电子有限公司,江苏连云港222006

出　　处：《电子质量》2022年第10期63-66,共4页Electronics Quality

摘　　要：光电编码器光栅码盘粘接的偏心量及旋转轴受力产生的偏心量会导致较大的系统测量误差,对该误差进行修正能够有效提高角精度指标。该文介绍了光电编码器读数系统组成及偏心误差影响,通过理论模型设计了一种对径安装的双读数系统编码器,对两个读数系统的数字量信号进行组合处理,修正偏心导致的系统测量误差。设计的编码器达到18位分辨率时标准差±8″的精度指标。The eccentricity of the grating bonding of the code disk of the photoelectric encoder and the eccentricity caused by the force on the rotating shaft will produce a large systematic measurement error.Correcting this error can effectively improve the angular accuracy index.This paper introduces the composition of photoelectric encoder reading system and the influence of eccentricity error.Through the theoretical model,a double reading system encoder with diametral installation is designed,which combines the digital signals of two reading system to correct the system measurement error caused by eccentricity.When the designed encoder reaches 18 bit resolution,the standard deviation is±8″Accuracy index of.

关 键 词：光电编码器 偏心 测角误差 双读数头 信号处理 

分 类 号：TN762[电子电信—电路与系统]