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Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry

A speckle interferometer which can measure whole field three-dimensional displacements continuously and dynamically has been built. Three different wavelength lasers are used to produce the speckle interferograms of the two in-plane displacements (displacements in the x- and y-direction) and one out...

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Detalles Bibliográficos
Autores principales: Qin, Jie, Gao, Zhan, Wang, Xu, Yang, Shanwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5191001/
https://www.ncbi.nlm.nih.gov/pubmed/27916858
http://dx.doi.org/10.3390/s16122020
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author Qin, Jie
Gao, Zhan
Wang, Xu
Yang, Shanwei
author_facet Qin, Jie
Gao, Zhan
Wang, Xu
Yang, Shanwei
author_sort Qin, Jie
collection PubMed
description A speckle interferometer which can measure whole field three-dimensional displacements continuously and dynamically has been built. Three different wavelength lasers are used to produce the speckle interferograms of the two in-plane displacements (displacements in the x- and y-direction) and one out-of-plane displacement (displacement in the z-direction), respectively. One color CCD camera is employed to collect these mixed speckle interferograms simultaneously. The mixed interferograms are separated by the Red, Green and Blue channels of the color CCD camera, and then are processed by the wavelet transform technique to extract the phase information of the measured object. The preliminary experiment is carried out to demonstrate the performance of this new device.
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spelling pubmed-51910012017-01-03 Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry Qin, Jie Gao, Zhan Wang, Xu Yang, Shanwei Sensors (Basel) Article A speckle interferometer which can measure whole field three-dimensional displacements continuously and dynamically has been built. Three different wavelength lasers are used to produce the speckle interferograms of the two in-plane displacements (displacements in the x- and y-direction) and one out-of-plane displacement (displacement in the z-direction), respectively. One color CCD camera is employed to collect these mixed speckle interferograms simultaneously. The mixed interferograms are separated by the Red, Green and Blue channels of the color CCD camera, and then are processed by the wavelet transform technique to extract the phase information of the measured object. The preliminary experiment is carried out to demonstrate the performance of this new device. MDPI 2016-11-29 /pmc/articles/PMC5191001/ /pubmed/27916858 http://dx.doi.org/10.3390/s16122020 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Qin, Jie
Gao, Zhan
Wang, Xu
Yang, Shanwei
Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry
title Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry
title_full Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry
title_fullStr Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry
title_full_unstemmed Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry
title_short Three-Dimensional Continuous Displacement Measurement with Temporal Speckle Pattern Interferometry
title_sort three-dimensional continuous displacement measurement with temporal speckle pattern interferometry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5191001/
https://www.ncbi.nlm.nih.gov/pubmed/27916858
http://dx.doi.org/10.3390/s16122020
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