Investigation of electronic speckle pattern interferometry with line laser scanning for large area deformation measurement

Shuichi Arikawa, Yuta Ando

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

For measuring small deformations in large structures by electronic speckle pattern interferometry (ESPI), the increase of laser power is required for providing the sufficient laser power per area. However, high-power lasers lead increasing the risk of exposure to laser, the size of the equipment and the cost. In this study, ESPI with line laser scanning is investigated for large area deformation measurements without increasing the laser power. A dual-beam interferometer for a horizontal displacement measurement which can illuminate horizontal line lasers and can scanning for vertical direction is constructed. A static in-plane deformation of an aluminum sheet specimen is measured. Speckle images for each vertical position are captured at the initial and the deformed state. Analyzed phase maps for each line show mismatch of the phases. Additionally, a method for integrating the mismatched line phase maps are investigated.

Original languageEnglish
Title of host publicationAdvancement of Optical Methods in Experimental Mechanics - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics
EditorsLuciano Lamberti, Cosme Furlong, Cesar Sciammarella, Ming-Tzer Lin
PublisherSpringer New York LLC
Pages93-95
Number of pages3
ISBN (Print)9783319630274
DOIs
Publication statusPublished - 1 Jan 2018
EventAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017 - Indianapolis, United States
Duration: 12 Jun 201715 Jun 2017

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume3
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

ConferenceAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017
CountryUnited States
CityIndianapolis
Period12/06/1715/06/17

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Keywords

  • Deformation measurement
  • Laser scanning
  • Line laser
  • Phase integration
  • Speckle interferometry

Cite this

Arikawa, S., & Ando, Y. (2018). Investigation of electronic speckle pattern interferometry with line laser scanning for large area deformation measurement. In L. Lamberti, C. Furlong, C. Sciammarella, & M-T. Lin (Eds.), Advancement of Optical Methods in Experimental Mechanics - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics (pp. 93-95). (Conference Proceedings of the Society for Experimental Mechanics Series; Vol. 3). Springer New York LLC. https://doi.org/10.1007/978-3-319-63028-1_15