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11 November 2014 Theoretical analysis for temporal phase-shifting of volume moiré tomography via double cross gratings
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Abstract
Volume Moiré Tomography (VMT) is an important technique to diagnose the flow field. In this Letter, the characteristic of temporal phase-shifting is analyzed for VMT. When the distance between two cross gratings is not on the Talbot distance, the phase-shifting factors are existed between moiré patterns of different orders. Especially, when the distance conforms to the sub-Talbot distance, the phase-shifting factors are maximum. This characteristic of temporal phaseshifting could be used for real 3-D flow fields reconstruction in the future.
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Nan Sun, Keding Yan, Liang Xue, and Shouyu Wang "Theoretical analysis for temporal phase-shifting of volume moiré tomography via double cross gratings", Proc. SPIE 9271, Holography, Diffractive Optics, and Applications VI, 927123 (11 November 2014); https://doi.org/10.1117/12.2064918
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