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High-frequency small angle measurement using a dynamic autocollimator based on an improved k-means algorithm

机译：基于改进的k均值算法的动态自准直仪高频小角度测量

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摘要

An improved k-means algorithm is proposed to enhance the stability and dynamic measurement accuracy of high-frequency small angle measurement using a dynamic autocollimator. The improved algorithm incorporating an optimized initialization scheme is used to determine the accurate position of the light spot for angle calculation. Simulations executed on different datasets demonstrate the effectiveness of the algorithm. Experimental results indicate that the 30-min stability of 0.58 and 0.69 arc sec at the measurement frequencies of 5 and 10 kHz can be achieved by the improved algorithm, respectively. Also, the dynamic measurement accuracy of 0.99 and 1.25 arc sec under the rotation speeds of 1 and 20 deg /s, respectively, at the measurement frequency of 10 kHz can be obtained. It is confirmed that the improved algorithm is necessary and effective for the autocollimator.
机译：提出了一种改进的k均值算法，以提高动态自动准直器对高频小角度测量的稳定性和动态测量精度。结合优化初始化方案的改进算法用于确定角度计算的光点的准确位置。在不同的数据集上执行的仿真证明了该算法的有效性。实验结果表明，改进算法可以分别在5 kHz和10 kHz的测量频率下实现0.58和0.69 arc sec的30分钟稳定性。另外，在10kHz的测量频率下，分别在1和20deg / s的旋转速度下可以获得0.99和1.25弧秒的动态测量精度。证实了改进的算法对于自准直仪是必要且有效的。

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  • 来源
    《Optical engineering》 |2018年第6期|064109.1-064109.8|共8页
  • 作者

    Yan Guo; Haobo Cheng; Yongfu Wen; Wei Zhang; Jianfeng Zhu;

  • 作者单位

    Beijing Institute of Technology, School of Optics and Photonics, Joint Research Center for Optomechatronics Engineering, Beijing, China,Beijing Institute of Technology, Shenzhen Research Institute, Shenzhen, China;

    Beijing Institute of Technology, School of Optics and Photonics, Joint Research Center for Optomechatronics Engineering, Beijing, China,Beijing Institute of Technology, Shenzhen Research Institute, Shenzhen, China;

    Beijing Institute of Technology, School of Optics and Photonics, Joint Research Center for Optomechatronics Engineering, Beijing, China,Beijing Institute of Technology, Shenzhen Research Institute, Shenzhen, China;

    Beijing Institute of Technology, Shenzhen Research Institute, Shenzhen, China;

    Beijing Institute of Technology, Shenzhen Research Institute, Shenzhen, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    laser autocollimation; angle measurement; high-frequency measurement; k-means;

    机译：激光自准直;角度测量高频测量k均值;

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