编码器动态细分误差快速评估系统的设计  

Design and Realization of an Encoder's Dynamic Interpolation Error Fast Appraisal System

作　　者：刘春霞[1] 伊杰[1] 安利民[1] 

机构地区：[1]黑龙江大学物理科学与技术学院,哈尔滨150080

出　　处：《武汉理工大学学报（交通科学与工程版）》2008年第4期760-763,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：黑龙江省教育厅资助项目(批准号:11531456)

摘　　要：以L issa jou图形计算法为基础,用向径偏差来表征图形形状偏差,分析了向径偏差与信号波形参数之间的关系,设计了编码器动态细分误差快速评价系统.该系统可以利用数据采集卡,将放大后的莫尔条纹光电信号送入计算机,由向径偏差的谐波成分得到信号波形参数,绘出细分误差曲线.该系统具有快速、简便的优点,对测试环境及编码器运行速度无严格要求,可以用于高精度光电轴角编码器动态细分误差的快速评估.Based on Lissajou figures, using radius vector deviation to express figure form deviation, the relation between radius vector deviation and signal waveform parameters is analyzed. The system can get the signal waveform parameters from the harmonic components of radius vector deviation, plot a curve of interpolation error by delivering magnified moire fringe photoelectric signal to computer with digital acquisition board. The system is fast, simple and convenient without strict requirement to testing environment and the speed of encoder. The experiments show that the system can be applied to fast evaluation of dynamic interpolation error for high precision photoelectric rotary encoder.

关 键 词：快速评估 Lissajou 图形计算法 谐波分析 细分误差 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]