推导法评估编码器细分误差  

Deduction Method to Evaluate Encoder's Interpolation Error

作　　者：刘春霞[1] 伊杰[1] 万秋华[2] 孙莹[2] 

机构地区：[1]黑龙江大学物理科学与技术学院,哈尔滨150080 [2]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《电子器件》2007年第4期1455-1457,共3页Chinese Journal of Electron Devices

摘　　要：为实现高精度编码器细分误差的快速评估,提出了一种Lissajou图形推导法.通过理论分析和计算机仿真,得出:在一定条件下,lissajou图形的向径偏差与细分误差之间存在确定关系,可以由向径偏差各次谐波直接推导出细分误差的各次谐波,绘出细分误差曲线.与传统方法测量得到的静态细分误差曲线进行对比,实验结果表明,运用该方法,数据分析处理时间短,可以用于编码器工作现场的快速检测.The deduction method is put forward to realize fast evaluation of high precision encoder＇s interpolation error. From theoretical deduction and computer emulation, we can know that, in special condition, there are definite relations between radius vector deviation of Lissajou figures and interpolation error, and we can directly deduct harmonic components of interpolation error through harmonic components of radius vector deviation, run a curve of interpolation error. Compared with curve of static interpolation error, the experiments have proved that the method need less time to process the digit analysis, and could be used to fast detection of encoder＇s working site.

关 键 词：光电编码器 细分误差快速评估 lissajou图形 推导法 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]