On-site dynamic deformation measurements based on enhanced temporal speckle pattern interferometry

被引：0
|
作者：
Zhang, Ruyue [1 ]
Lai, Lizhao [1 ]
Xu, Jingchao [1 ]
Hu, Jicen [1 ]
Fu, Yu [2 ]
Miao, Hong [1 ]
机构：
[1] Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Anhui, Peoples R China
[2] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen Key Lab Intelligent Opt Measurement & Det, 3688 Nanhai Ave, Shenzhen 518060, Peoples R China
来源：
OPTICS AND LASERS IN ENGINEERING | 2024年 / 181卷
基金：
中国国家自然科学基金;
关键词：
On-site measurements; Dynamic deformation measurements; Temporal speckle pattern interferometry; Laser Doppler vibrometers; EMPIRICAL MODE DECOMPOSITION; FOURIER-TRANSFORM; PHASE EVALUATION; WAVELET ANALYSIS; TIME-SERIES;
D O I：
10.1016/j.optlaseng.2024.108411
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper proposes a dynamic deformation measurement method based on temporal speckle pattern interferometry, tailored for on-site applications. This technique utilizes an improved dynamic phase extraction algorithm to obtain phases associated with both ground vibrations and object deformations. Deformations are discerned from vibrations by employing a synchronized measurement system that integrates laser Doppler vibrometers and a high-speed camera. The effectiveness of the method for dynamic deformation measurements under micronlevel vibrations is verified by experiments.
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页数：12
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