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

Yan Guo, Haobo Cheng*, Yongfu Wen, Wei Zhang, Jianfeng Zhu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

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.

源语言英语
文章编号064109
期刊Optical Engineering
57
6
DOI
出版状态已出版 - 1 6月 2018

指纹

探究 'High-frequency small angle measurement using a dynamic autocollimator based on an improved k-means algorithm' 的科研主题。它们共同构成独一无二的指纹。

引用此