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

Jianfeng Zhong; Shuncong Zhong; Qiukun Zhang; Ligang Yao

doi:10.1016/j.optlaseng.2014.08.011

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

Jianfeng Zhong, Shuncong Zhong, Qiukun Zhang, Ligang Yao

Naval Architecture, Ocean And Marine Engineering

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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.

Original language	English
Pages (from-to)	74-79
Number of pages	6
Journal	Optics and Lasers in Engineering
Volume	66
Early online date	16 Sept 2014
DOIs	https://doi.org/10.1016/j.optlaseng.2014.08.011
Publication status	Published - Mar 2015

Keywords

two-dimensional optical coherence tomography
absolute displacement measurement
response only modal analysis

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10.1016/j.optlaseng.2014.08.011

Zhong-etal-OLE-2015-Two-dimentional-optical-coherence-tomography-for-real-timeAccepted author manuscript, 765 KBLicence: CC BY-NC-ND 4.0

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title = "Two-dimensional optical coherence tomography for real-time structural dynamical characterization",

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.",

keywords = "two-dimensional optical coherence tomography, absolute displacement measurement, response only modal analysis",

author = "Jianfeng Zhong and Shuncong Zhong and Qiukun Zhang and Ligang Yao",

year = "2015",

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doi = "10.1016/j.optlaseng.2014.08.011",

language = "English",

volume = "66",

pages = "74--79",

journal = "Optics and Lasers in Engineering",

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T1 - Two-dimensional optical coherence tomography for real-time structural dynamical characterization

AU - Zhong, Jianfeng

AU - Zhong, Shuncong

AU - Zhang, Qiukun

AU - Yao, Ligang

PY - 2015/3

Y1 - 2015/3

N2 - 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.

AB - 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.

KW - two-dimensional optical coherence tomography

KW - absolute displacement measurement

KW - response only modal analysis

UR - http://www.sciencedirect.com/science/article/pii/S0143816614002036

U2 - 10.1016/j.optlaseng.2014.08.011

DO - 10.1016/j.optlaseng.2014.08.011

M3 - Article

SN - 0143-8166

VL - 66

SP - 74

EP - 79

JO - Optics and Lasers in Engineering

JF - Optics and Lasers in Engineering

ER -

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

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Keywords

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