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Research of built-in-type high precision angle encoder: emulation and experiment

机译：内置式高精度角度编码器的研究：仿真与实验

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摘要

The accuracy of built-in-type encoder with an external diameter of 180 mm that is offered by the world leaders doesn't exceed ±2.5 angular seconds. A high accuracy angular built-in-type encoder with error about +0.3 angular seconds for laser images generators is shown in this paper. An angle encoder was made using 165 mm raster that had error equal to ±1.1 angular seconds. The error spectrum had evident predominance of second harmonic. This peculiarity predetermined choice of encoder configuration with four reading heads. The encoder emulation result had predicted encoder error no more then ±0.25 angular seconds. Resulting error of virtual encoder was determined by summary contribution of 4, 8, 12 and 16 harmonics. An encoder resulting error was determined by special angle measuring test bench. Error of real encoder didn't exceed ±0.35 angular seconds. The error spectrum had both expected 4, 8, 12, 16 harmonics and unexpected 2, 3, 5, 7 ones. The difference between the results of emulation and experiment is analyzed in this paper. The problems of creation of angle measuring test bench with error no more than ±0.1 angular seconds using ROD-800 angle encoder (which has accuracy only ±1.0 angular seconds) have been discussed.
机译：世界领先者提供的外径为180 mm的内置编码器的精度不超过±2.5角秒。本文显示了一种高精度的内置角度编码器，用于激光图像生成器，其误差约为+0.3角秒。使用165 mm光栅制作角度编码器，其误差等于±1.1角秒。误差谱具有明显的二次谐波优势。具有四个读取头的这种特殊的编码器配置的预定选择。编码器仿真结果预测的编码器错误不超过±0.25角秒。虚拟编码器的最终误差由4、8、12和16次谐波的总贡献确定。编码器产生的误差由特殊的角度测量测试台确定。实际编码器的误差不超过±0.35角秒。误差谱具有预期的4、8、12、16次谐波和意外的2、3、5、7次谐波。分析了仿真结果与实验结果之间的差异。讨论了使用ROD-800角度编码器（精度仅为±1.0角秒）创建误差不超过±0.1角秒的角度测量测试台的问题。

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  • 来源
    《Photonics, devices, and systems IV》|2008年|71380T.1-71380T.6|共6页
  • 会议地点 Prague(CS)
  • 作者

    Valery P. Kiryanov; Alexey V. Kiryanov; Ilya F. Klistorin;

  • 作者单位

    Technological Design Institute of Scientific Instrument Engineering Siberian Branch of the Russian Academy of Sciences 41, Russkaya str., Novosibirsk, 630058, Russia;

    Technological Design Institute of Scientific Instrument Engineering Siberian Branch of the Russian Academy of Sciences 41, Russkaya str., Novosibirsk, 630058, Russia;

    Technological Design Institute of Scientific Instrument Engineering Siberian Branch of the Russian Academy of Sciences 41, Russkaya str., Novosibirsk, 630058, Russia;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程光学;
  • 关键词

    angle encoder; angle raster; laser image generator;

    机译：角度编码器角光栅激光图像发生器;

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