Error Compensation for Single Pair-pole Encoder Based on Ellipse Hypothesis
An error compensation method for the single pair-pole encoder has been discussed in this paper.This article analyzed offset,sensitivity error,quadrature error and ferromagnetic interference error of single-pole magnetic encoder to obtain the expression of each error.In order to facilitate error compensation,the common expression for describing the error has been summed up.The process for formatting the error can be assumed as the process of changing from circle to ellipse.Therefore the inverse of this process is the same as the process of error compensation.The experimental results show that the accuracy of magnetic encoder which used this method could reach ±1,thus the error compensation effect is obvious.The magnetic encoder which applied this method has the advantages of low-cost,high-precision and convenient to use.
Magnetic encoder Single pair-pole Error compensation Ellipse hypothesis
Yi Fan Zeng Fang Fang Jiang
College of Information Science and Engineering,ShenYang University of Technology,ShenYang110870,China
国际会议
广州
英文
1231-1235
2012-11-16(万方平台首次上网日期,不代表论文的发表时间)