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Two-dimensional optical coherence tomography for real-time structural dynamical characterization

Zhong, Jianfeng and Zhong, Shuncong and Zhang, Qiukun and Yao, Ligang (2015) Two-dimensional optical coherence tomography for real-time structural dynamical characterization. Optics and Lasers in Engineering, 66. pp. 74-79. ISSN 0143-8166

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Abstract

We present a two-dimensional optical coherence vibration tomography (2DOCVT) system with an ultra-precision displacement resolution of ~0.1 nm that is capable of in site real-time absolute displacement measurement of structural line vibrations. Experimental results of sinusoidal, sweep and impulse vibrations were reported. The key figures of merit such as the 2DOCVT system could obtain fast line vibration measurement without scanning and it also could be used to capture structural modal parameters in one single impulse excitation measurement without any vibration excitation input information, making it attractive for the application in low-frequency vibration measurement and response-only modal analysis.

Item type: Article
ID code: 53586
Keywords: two-dimensional optical coherence tomography, absolute displacement measurement, response only modal analysis, Naval architecture. Shipbuilding. Marine engineering, Oceanography, Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Mechanical Engineering
Subjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering
Geography. Anthropology. Recreation > Oceanography
Department: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering
Depositing user: Pure Administrator
Date deposited: 03 Jul 2015 09:45
Last modified: 27 Jan 2019 05:53
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URI: https://strathprints.strath.ac.uk/id/eprint/53586
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