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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 19 — Jul. 1, 2012
  • pp: 4409–4419

Optimization of a three-dimensional digital image correlation system for deformation measurements in extreme environments

Bing Pan, Dafang Wu, and Liping Yu  »View Author Affiliations


Applied Optics, Vol. 51, Issue 19, pp. 4409-4419 (2012)
http://dx.doi.org/10.1364/AO.51.004409


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Abstract

An optimized 3D digital image correlation (3D-DIC) system using active optical imaging is developed for accurate shape and 3D deformation measurements in nonlaboratory conditions or extreme high-temperature environments. In contrast to a conventional 3D-DIC system using white or natural light illumination, the proposed active imaging 3D-DIC system is based on a combination of monochromatic lighting and bandpass filter imaging. Because the bandpass filter attached before the imaging lenses allows only the actively illuminated monochromatic light to pass through and blocks all light outside of its bandpass range, the active imaging 3D-DIC system is therefore insensitive to serious variations in ambient light in nonlaboratory environments and to the thermal radiation of hot objects in extreme high-temperature environments. Two challenging experiments that cannot be performed by a conventional 3D-DIC system were carried out to verify the robustness and accuracy of the developed active imaging 3D-DIC system. Because a much wider application range can be achieved with relatively simple and easy-to-implement improvements, the proposed active imaging 3D-DIC system is highly recommended for practical use instead of the conventional 3D-DIC system.

© 2012 Optical Society of America

OCIS Codes
(080.3620) Geometric optics : Lens system design
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: May 7, 2012
Revised Manuscript: June 5, 2012
Manuscript Accepted: June 6, 2012
Published: June 27, 2012

Citation
Bing Pan, Dafang Wu, and Liping Yu, "Optimization of a three-dimensional digital image correlation system for deformation measurements in extreme environments," Appl. Opt. 51, 4409-4419 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-19-4409

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