Analysis and research of polarization aberration in rapid space angle measuring system
文献类型：期刊论文
| 作者 | Li Chun-Yan1; Lu Wei-Guo2; Qiao Lin1 |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2018-02-05 |
| 卷号 | 67期号:3 |
| 关键词 | Polarized Light Azimuth Measurement Polarization Aberration Glan-taylor Prism |
| ISSN号 | 1000-3290 |
| DOI | 10.7498/aps.67.20171702 |
| 其他题名 | 快速空间测角系统中偏振像差的分析与研究 |
| 产权排序 | 2 |
| 英文摘要 | The precise angle measurement and transmission technology have been widely used in the precision measurement, aerospace, military, biomedicine and other devices, which are based on the polarized light and magneto-optical modulation. This method has the characteristics of no rigid connection required, long distance transmission, high precision, etc. However, the azimuth information measurement method needs the assistance of complex servo tracking system according to the orthogonal extinction principle of polarization prism, meanwhile, the measurement time is longer, which reduces reliability and reaction sensitivity of the system. In order to improve the measurement accuracy and fast response capability of the system, a fast space goniometry method is proposed through the Wollaston prism polarizing beam splitter, with which the azimuth is directly calculated according to the two light intensities. The measurement time can be shortened, and the accuracy is improved by the use of magneto-optical modulation technology. The rapid space angle measuring system needs to realize the measurement function in a certain translation range, which requires the beam to have a certain coverage area in the receiving unit. However, the system is limited by size and volume of the device; we can only choose to expand the incident beam. Therefore, when the beam is incident onto the receiving unit, some incident angle and azimuth, that is, non-vertical incidence will be produced. However, the polarization of the non-vertically incident light passing through the system will change and polarization aberration exists, which will lead to measurement error. In this paper, the beam passes through the polarizing prism in a certain range of azimuths and incident angles, and the polarized light tracing method and the boundary condition of the electromagnetic field are used to study and simulate the polarization change and distribution of the outgoing beam. The changes of different incident azimuths and angles can be simulated through the translation of receiving unit, and the azimuths can be measured indirectly by using self-collimation theodolite and right angle prism. By comparing the measured azimuths under the translational and centering conditions, the influence of polarization aberration on the angle measuring system and the correctness of the theoretical analysis are verified. It is concluded that when the azimuth angle is 0 degrees, the measurement error is small; when the azimuth is 90 degrees, the measurement error is largest, meanwhile the measurement error will increase with the translation distance becoming longer (i.e., the incident angle). According to the comparison between the experimental data and the simulation results, the existing problems are pointed out, and the corresponding improvement measures are proposed. The results of this work have some significance in guiding the optimization of the system structure, and the further improvement inthe performance of the system. |
| 学科主题 | Physics, Multidisciplinary |
| 语种 | 中文 |
| WOS记录号 | WOS:000425272200006 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/30761]  |
| 专题 | 西安光学精密机械研究所_光学定向与测量技术研究室 |
| 作者单位 | 1.Xian Univ Posts & Telecommun, Sch Elect Engn, Dept Optoelect Technol, Xian 710121, Shaanxi, Peoples R China; 2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Chun-Yan,Lu Wei-Guo,Qiao Lin. Analysis and research of polarization aberration in rapid space angle measuring system[J]. ACTA PHYSICA SINICA,2018,67(3). |
| APA | Li Chun-Yan,Lu Wei-Guo,&Qiao Lin.(2018).Analysis and research of polarization aberration in rapid space angle measuring system.ACTA PHYSICA SINICA,67(3). |
| MLA | Li Chun-Yan,et al."Analysis and research of polarization aberration in rapid space angle measuring system".ACTA PHYSICA SINICA 67.3(2018). |
入库方式： OAI收割
来源：西安光学精密机械研究所
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