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Chin. Opt. Lett.
 Home  List of Issues    Issue 07 , Vol. 16 , 2018    10.3788/COL201816.071201


Simultaneous 2D in-plane deformation measurement using electronic speckle pattern interferometry with double phase modulations
Yunlong Zhu1, Julien Vaillant1;2, Guillaume Montay2, Manuel Fran?ois2, Yassine Hadjar1, and Aurélien Bruyant1
1 ICD-L2N, UMR CNRS 6281, [Université de Technologie de Troyes], 10004 Troyes, France
2 ICD-LASMIS, UMR CNRS 6281, [Université de Technologie de Troyes], 10004 Troyes, France

Chin. Opt. Lett., 2018, 16(07): pp.071201

DOI:10.3788/COL201816.071201
Topic:Instrumentation, measurement and metrology
Keywords(OCIS Code): 120.6160  120.5060  120.5050  070.2615  

Abstract
Electronic speckle pattern interferometry (ESPI) and digital speckle pattern interferometry are well-established non-contact measurement methods. They have been widely used to carry out precise deformation mapping. However, the simultaneous two-dimensional (2D) or three-dimensional (3D) deformation measurements using ESPI with phase shifting usually involve complicated and slow equipment. In this Letter, we solve these issues by proposing a modified ESPI system based on double phase modulations with only one laser and one camera. In-plane normal and shear strains are obtained with good quality. This system can also be developed to measure 3D deformation, and it has the potential to carry out faster measurements with a high-speed camera.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2018/3/15
Accepted:2018/5/8
Posted online:2018/6/28

Get Citation: Yunlong Zhu, Julien Vaillant, Guillaume Montay, Manuel Fran?ois, Yassine Hadjar, and Aurélien Bruyant, "Simultaneous 2D in-plane deformation measurement using electronic speckle pattern interferometry with double phase modulations," Chin. Opt. Lett. 16(07), 071201(2018)

Note: This work was financially supported by the ANR Micromorfing Program (ANR-14-CE07-0035), China Scholarship Council (CSC), and the Labex Action.



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