Double-exposure phase-shifting holography applied to particle velocimetry

Tianshu Lai; Yushan Tan

doi:10.1117/12.57443

1 December 1991 Double-exposure phase-shifting holography applied to particle velocimetry

Tianshu Lai, Yushan Tan

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/10.1117/12.57443
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

A double-exposure phase-shifting holography applied to particle velocimetry is proposed and analyzed theoretically in this paper. The background noise of the reconstructed particle image can be eliminated by means of the proposed holography so that the SNR of the image is increased significantly, which makes it easy for a computer to automatically analyze the reconstructed particle image. The experimental results of a simulated velocity field are given.

Citation Download Citation

Tianshu Lai and Yushan Tan "Double-exposure phase-shifting holography applied to particle velocimetry", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.57443

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