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Optical system design of compound multi-point measurement velocity interferometer
其他题名复合式多点测量速度干涉仪光学系统设计
Yan, Ya-Dong; He, Jun-Hua; Xu, Rui-Hua; Wei, Ming-Zhi; Li, Qi; Yan, Ya-Dong (yyd@opt.ac.cn)
作者部门先进光学仪器研究室
2017-08-01
发表期刊Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN1004924X
卷号25期号:8页码:2023-2028
产权排序1
摘要

In order to measure velocities of explosion loading surface driven by blast waves, a compound velocity interferometer was introduced. The illumination laser from fiber array was projected onto the target surface through a telecentric optical imaging system. Only several points on the target were illuminated, which got the utmost out of laser power. The illumination beam had so small numerical aperture that the illumination spot size kept constant while the target moving within 10 mm. A taper fiber array with large core diameter was mounted on the image surface of optical imaging system, thus the signals could coupled into the large core fibers effectively and could output in single mode for difference interference in single mode Mach-Zender interferometer during the target movement. A 45° beam splitter with a small wedge angle was employed before the first optical element of the imaging system, the illumination laser could be reflected to the object surface by the rectangular films on the first surface of the splitter. The small wedge angle of the splitter could compensate the astigmatism lead by titled parallel plate. During the object surface moving within 10 mm, the lighting power and spot sizes on object surface remain the same, and the coupling efficiency of Doppler frequency shift signals also remain constant. This optical system could meet the demand of explosion loading surface velocity measurement in long distance range. © 2017, Science Press. All right reserved.

DOI10.3788/OPE.20172508.2023
收录类别EI
语种中文
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/29454
专题先进光学仪器研究室
通讯作者Yan, Ya-Dong (yyd@opt.ac.cn)
作者单位Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China
推荐引用方式
GB/T 7714
Yan, Ya-Dong,He, Jun-Hua,Xu, Rui-Hua,et al. Optical system design of compound multi-point measurement velocity interferometer[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2017,25(8):2023-2028.
APA Yan, Ya-Dong,He, Jun-Hua,Xu, Rui-Hua,Wei, Ming-Zhi,Li, Qi,&Yan, Ya-Dong .(2017).Optical system design of compound multi-point measurement velocity interferometer.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,25(8),2023-2028.
MLA Yan, Ya-Dong,et al."Optical system design of compound multi-point measurement velocity interferometer".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 25.8(2017):2023-2028.
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