A high-resolution subdivision algorithm for photographic encoders and its error analysis

	A high-resolution subdivision algorithm for photographic encoders and its error analysis
	Yu, H.; Q. Wan; C. Zhao; L. Liang and Y. Du
	2017
发表期刊	Guangxue Xuebao/Acta Optica Sinica
卷号	37 期号:3
摘要	In order to realize high resolution angular measurement, a subdivision method based on the photographic sensor is proposed. A more adaptable high-resolution subdivision algorithm is proposed to eliminate the subdivision error caused by the irregular distance between the photographic sensor and the grating center during installation and adjustment of the encoder. The mathematical model of the proposed subdivision algorithm is established, and the error of the method is analyzed. Based on practical working conditions, an error model which takes many aspects into consideration is built and the effect of various elements on the subdivision algorithm is analyzed. According to the error analysis results, how to reduce the subdivision error of photographic encoders is recommended. Experimental results show that the subdivision error can be ignored when the line number of circular grating is more than or equal to 128. The results can provide theoretical foundation for develop the miniature photographic encoder. 2017, Chinese Lasers Press. All right reserved.
收录类别	ei
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/59398
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yu, H.,Q. Wan,C. Zhao,et al. A high-resolution subdivision algorithm for photographic encoders and its error analysis[J]. Guangxue Xuebao/Acta Optica Sinica,2017,37(3).
APA	Yu, H.,Q. Wan,C. Zhao,&L. Liang and Y. Du.(2017).A high-resolution subdivision algorithm for photographic encoders and its error analysis.Guangxue Xuebao/Acta Optica Sinica,37(3).
MLA	Yu, H.,et al."A high-resolution subdivision algorithm for photographic encoders and its error analysis".Guangxue Xuebao/Acta Optica Sinica 37.3(2017).

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