Real-time compensation of orthogonality deviation for Moire fringe photoelectric signal

GAO Xu; WAN Qiu-hua; ZHAO Chang-hai; SUN Ying; YANG Shou-wang

doi:10.3788/OPE.20142201.0213

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Real-time compensation of orthogonality deviation for Moire fringe photoelectric signal

Information Sciences | 更新时间：2020-08-13

- Real-time compensation of orthogonality deviation for Moire fringe photoelectric signal
- Optics and Precision Engineering Vol. 22, Issue 1, Pages: 213-219(2014)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院大学北京,中国,100049
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142201.0213
  CLC： TP212.14;O436.1
- Received：16 September 2013，
  
  Published：15 January 2014
- 稿件说明：
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高旭, 万秋华, 赵长海等. 莫尔条纹光电信号正交性偏差的实时补偿[J]. 光学精密工程, 2014,22(1): 213-219

GAO Xu, WAN Qiu-hua, ZHAO Chang-hai etc. Real-time compensation of orthogonality deviation for Moire fringe photoelectric signal[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 213-219
高旭, 万秋华, 赵长海等. 莫尔条纹光电信号正交性偏差的实时补偿[J]. 光学精密工程, 2014,22(1): 213-219 DOI： 10.3788/OPE.20142201.0213.

GAO Xu, WAN Qiu-hua, ZHAO Chang-hai etc. Real-time compensation of orthogonality deviation for Moire fringe photoelectric signal[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 213-219 DOI： 10.3788/OPE.20142201.0213.

摘要

为了提高光电轴角编码器的精度

提出了一种实时补偿莫尔条纹光电信号正交性偏差的方法。利用希尔伯特变换原理

构造了同频光电信号正交性偏差的动态测量算法。根据莫尔条纹光电信号的数学模型

揭示了由正交性偏差引起的细分误差的空间分布特征并建立角度补偿模型。鉴于编码器的实际工作特点

采用同步处理方式

在补偿光电信号的同时动态更新了角度代码补偿查找表;通过细分查找表的切换

实现信号正交性偏差的实时补偿。采用该方法对存在约18°正交性偏差的23位光电编码器进行了补偿处理

结果显示:补偿后的编码器的细分误差峰值由4.79"降低到1.26"。该方法可实际应用于编码器系统

能够提高编码器的细分精度、环境适应性和可靠性。

Abstract

A method to compensate the orthogonality deviation of the Moire fringe photoelectric signal was proposed to improve the accuracy of a photoelectric rotary encoder. Based on Hilbert transform theory

a dynamic measurement algorithm for the orthogonality deviation of same frequency photoelectric signal was constructed. In the light of the mathematical model for Moire fringe photoelectric signal

the influence of orthogonality deviation on subdivision precision was analyzed and an angle compensation model was set up. According to the working principle of the encoder

a synchronous processing mode was adopted to compensate the photoelectric signal and update dynamically the lookup table for angle codes simultaneously; by the switching of subdivision lookup table

the orthogonality deviation for the photoelectric signal was compensated in real time. Finally

a 23-bit photoelectric encoder with 18° orthogonality deviation was compensated using this method. Experimental results show that the peak value of subdivision error of the encoder has reduced from 4.79" to 1.26 " after compensation. This method can actually be used in an encoder system and it can improve the subdivision accuracy

environmental adaptability and the reliability of encoders.

关键词

Keywords

references

王显军. 光电轴角编码器细分信号误差及精度分析[J]. 光学精密工程, 2012, 20(2):379-386.

WANG X J. Errors and precision analysis of subdivision signals for photoelectric angle encoder [J]. Opt. Precision Eng., 2012, 20(2): 379-386. (in Chinese)

王显军. 基于SOC单片机的高集成度光电编码器处理电路设计[J].光学精密工程, 2012, 20(2):379-386.

WANG X J. Circuit design for high integrated photoelectric encoder base on SOC singlechip [J]. Opt. Precision Eng., 2011, 19(5): 379-386. (in Chinese)

左洋, 龙科慧, 乔克, 等. 航天编码器调试系统显示功能设计[J].液晶与显示, 2012, 27(6):795-799.

ZUO Y, LONG K H, QIAO K, et al.. Design of display function in debugging system of space encoder [J]. Chinese Journal of Liquid Crystals and Displays, 2012, 27(6):795-799.(in Chinese)

SONG J H, KIM K CH, KIM S H, et al.. A new error compensation method in linear encoder using phase shifted grating [J].SPIE, 1999, 3740: 124-127.

熊文卓, 孔智勇, 张炜.光电轴角编码器光电信号正交偏差的相量校正方法[J].光学精密工程, 2007, 15(11):1745-1748.

XIONG W ZH, KONG ZH Y, ZHANG W. Phase correction of quartering deviation of photoelectric rotary encoder [J]. Opt. Precision Eng., 2007, 15(11):1745-1748 .(in Chinese)

罗刚, 熊文卓. 光电轴角编码器光电信号正交偏差的测量和补偿方法[J].传感技术学报, 2008, 11(21):1853-1857.

LUO G, XIONG W Z H. A method to measure and offset quartering deviation of encoder [J]. Chinese Journal of Sensors and Actuators, 2008, 11(21): 1853-1857. (in Chinese)

吕恒毅, 刘杨, 王延东, 等.莫尔条纹正交偏差的智能补偿方法[J].仪器仪表学报, 2010, 31(9):2075-2080.

LV H Y, LIU Y , WANG Y D, et al. Intelligent compensation method of Moire fringe orthogonality deviation[J]. Chinese Journal of Scientific Instrument, 2010, 31(9): 2075-2080. (in Chinese)

WARNER M, KRABBENDAM V, SCHUMACHER G. Adaptive Periodic Error Correction for Heidenhain Tape Encoders [J]. SPIE, 2008, 7012:70123

GREGORCIC P, POZAR T, MOZINA J. Phase-shift error in quadrature-detection-based interferometers [J]. SPIE, 2010, 7726:77260X.

MERRY R, REN′E V D M, STEINBUCH M, et al..Error modeling and improved position estimation for optical incremental encoders by means of time stamping [J]. American Control Conference, 2007, 18(4): 3570- 3575.

吕孟军, 郭琪, 吕印晓.莫尔条纹信号相位误差补偿[J].光学精密工程, 2009, 17(7):1694-1700.

LV M J, GUO Q, LV Y X. Signal phase error compensation of Moire fringe [J]. Opt. Precision Eng., 2009, 17(7): 1694-1700. (in Chinese)

王选择, 郭军, 谢铁帮.精密衍射光栅信号的椭圆拟合与细分校正算法[J].工具技术, 2003, 37(12):47-49.

WANG X Z, GUO J, XIE T B. Ellipse fit algorithm and subdivision revision method of precision diffraction grating [J]. Tool Technology, 2003, 37(12): 47-49. (in Chinese)

高贯斌, 王文, 林铿, 等.圆光栅角度传感器的误差补偿及参数辨识[J].光学精密工程, 2010, 18(8):1766-1772.

GAO G B, WANG W, LIN K. Error compensation and parameter identification of circular grating angle sensors [J]. Opt. Precision Eng., 2010, 18(8): 1766-1772. (in Chinese)

赵长海. 高精度光电编码器动态细分误差的测量方法研究[D].北京:中国科学院, 2008.

ZHAO CH H.The research of measure method of dynamic interpolation errors of high precision photoelectric encoder[D].Beijing:Graduate University of the Chinese Academy of Sciences, 2008.(in Chinese)

陈亮, 杨吉斌, 张雄伟. 信号处理算法的实时DSP实现[M]. 北京:电子工业出版社, 2008.

CHEN L, YANG J B, ZHANG X W. Real-time DSP Achievement of Signal Processing Algorithm [J]. Beijing: Electronics Industry Press, 2008. (in Chinese)

许志涛, 龙科慧, 刘金国, 等. 基于C8051F340和Labview的编码器调试系统设计[J].液晶与显示, 2011, 26(6):789-794.

XU ZH T, LONG K H, LIU J G, et al.. Design of encoder signal debugging system based on C8051F340 and Labview [J]. Chinese Journal of Liquid Crystals and Displays, 2011, 26(6):789-794.(in Chinese)

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