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Proceedings Paper

Theoretical analysis of volume moiré tomography based on double orthogonal gratings for real 3D flow fields diagnosis
Author(s): Nan Sun; Yang Song; Jia Wang; Zhen-hua Li; An-zhi He
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Paper Abstract

Moiré tomography is an important technique to diagnose the flow field. However, the traditional moiré deflectometry cannot meet the requirements of Volume Moiré Tomography (VMT). In this Letter, an improved moiré deflected system based on double orthogonal gratings is introduced for real 3-D reconstruction. The proposed method could obtain the first-order partial derivatives in two vertical directions of the projection in one time. Comparing with the traditional moiré deflectometry, the proposed system is more effective and easier to realize the multi-direction data acquisition.

Paper Details

Date Published: 26 November 2012
PDF: 15 pages
Proc. SPIE 8556, Holography, Diffractive Optics, and Applications V, 85561O (26 November 2012); doi: 10.1117/12.2000706
Show Author Affiliations
Nan Sun, Nanjing Univ. of Science and Technology (China)
Yang Song, Nanjing Univ. of Science and Technology (China)
Jia Wang, Nanjing Univ. of Science and Technology (China)
Zhen-hua Li, Nanjing Univ. of Science and Technology (China)
An-zhi He, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8556:
Holography, Diffractive Optics, and Applications V
Yunlong Sheng; Chongxiu Yu; Linsen Chen, Editor(s)

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