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Proceedings Paper

Dynamic deformation measurement based on inverse projected fringe technique
Author(s): Wen Li; Qican Zhang; Yuankun Liu
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Paper Abstract

In this paper a method for measurement and analysis of dynamic deformation based on inverse projected fringe technique is presented. This technique is also based on fringe projection but uses an active fringe control. The inverse fringe pattern is projected onto the surface of a vibrating membrane and a high-speed CCD camera is used to record the deformed fringe patterns on the membrane. On the recording plan, only the fringes at the deformed area will be curved while fringes in the other areas remains straight and the deformation of the measured object become much obvious. The shape and movement of the deforming object can be qualitatively analyzed and recognized by Fourier transform, filtering and inverse Fourier transform. The movement of a vibrating membrane and a deforming lap are calculated and evaluated. The results demonstrate this method is feasible and accurate to analyze dynamic deformation.

Paper Details

Date Published: 20 May 2009
PDF: 6 pages
Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 728317 (20 May 2009); doi: 10.1117/12.828657
Show Author Affiliations
Wen Li, Sichuan Univ. (China)
Qican Zhang, Sichuan Univ. (China)
Yuankun Liu, Sichuan Univ. (China)


Published in SPIE Proceedings Vol. 7283:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; James C. Wyant; Robert A. Smythe; Hexin Wang, Editor(s)

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