Journal
APPLIED OPTICS
Volume 51, Issue 19, Pages 4409-4419Publisher
Optica Publishing Group
DOI: 10.1364/AO.51.004409
Keywords
-
Categories
Funding
- National Natural Science Foundation of China (NSFC) [11002012, 11172026]
- China Aerospace Science and Technology Innovation Fund Project [CASC201101]
- Aeronautical Science Foundation of China [2011ZD51043]
- Specialized Research Fund for the Doctoral Program of Higher Education [20101102120015]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- Fundamental Research Funds for the Central Universities
Ask authors/readers for more resources
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. (C) 2012 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available