OPT OpenIR  > 海洋光学技术研究室
Optimized all-fiber laser Doppler velocimeter with large depth of field
Hao, GeYang1; Cui, Ying2; Yang, Yucheng1; lv, Xiaopeng1; Wu, Guojun1
Department海洋光学技术研究室
2020-12
Source PublicationOptical Fiber Technology
ISSN10685200
Volume60
Contribution Rank1
Abstract

Due to the low spatial coupling efficiency of optical fiber and large energy loss, the depth of field in the all-fiber laser Doppler velocimeter is short, and the focus needs to be adjusted before measurement, so it is impossible to continuously measure the velocity of object moving along the optical axis. To solve this problem, an all-fiber Doppler velocimeter based on the Mach-Zehnder interferometer structure is designed, also, in the optical antenna section, C-lens is used to change the divergence angle of the light coming out of the optical fiber. The optimized design achieves the detection with large depth of field. The experiment is designed to verify the intensity of the echo signal, signal-to-noise ratio (SNR) and the speed accuracy of the velocimeter taken in different depths of field. The test results show that the depth of field in this system is superior to 25 m. The SNR is stable around 16 dB with small fluctuation in the range of depth of field, and the speed accuracy is better than ±0.1 m/s. © 2020 Elsevier Inc.

KeywordLaser Doppler velocimeter Optical fiber sensing Optical precision measurement Depth of field
DOI10.1016/j.yofte.2020.102333
Indexed ByEI
Language英语
PublisherAcademic Press Inc.
EI Accession Number20204409423547
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/93774
Collection海洋光学技术研究室
Corresponding AuthorCui, Ying
Affiliation1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Fazhan Street, Xi'an; 710119, China;
2.Engineering University of PAP, College of Equipment Management and Support, Wujing Street, Xi'an; 710086, China
Recommended Citation
GB/T 7714
Hao, GeYang,Cui, Ying,Yang, Yucheng,et al. Optimized all-fiber laser Doppler velocimeter with large depth of field[J]. Optical Fiber Technology,2020,60.
APA Hao, GeYang,Cui, Ying,Yang, Yucheng,lv, Xiaopeng,&Wu, Guojun.(2020).Optimized all-fiber laser Doppler velocimeter with large depth of field.Optical Fiber Technology,60.
MLA Hao, GeYang,et al."Optimized all-fiber laser Doppler velocimeter with large depth of field".Optical Fiber Technology 60(2020).
Files in This Item:
File Name/Size DocType Version Access License
Optimized all-fiber (3871KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hao, GeYang]'s Articles
[Cui, Ying]'s Articles
[Yang, Yucheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hao, GeYang]'s Articles
[Cui, Ying]'s Articles
[Yang, Yucheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hao, GeYang]'s Articles
[Cui, Ying]'s Articles
[Yang, Yucheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Optimized all-fiber laser Doppler velocimeter with large depth of field.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.