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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 2, Iss. 10 — Oct. 1, 1985
  • pp: 1721–1724

Particle-image velocimetry: improving fringe signal-to-noise ratio with a two-step photographic process. Part II

C. J. D. Pickering and N. A. Halliwell  »View Author Affiliations


JOSA A, Vol. 2, Issue 10, pp. 1721-1724 (1985)
http://dx.doi.org/10.1364/JOSAA.2.001721


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Abstract

In using particle-image velocimetry (PIV) to obtain an instantaneous two-dimensional velocity map in a fluid flow, a double-exposure photograph of the seeded medium is analyzed optically to produce correlation fringes. In an earlier paper we showed theoretically that the signal-to-noise ratio of these fringes, and hence measurement accuracy, is significantly improved by using a two-step photographic process. In this paper, experimental results are presented that support the previous theoretical work and reveal the great potential of PIV in experimental fluid mechanics.

© 1985 Optical Society of America

History
Original Manuscript: March 11, 1985
Manuscript Accepted: May 6, 1985
Published: October 1, 1985

Citation
C. J. D. Pickering and N. A. Halliwell, "Particle-image velocimetry: improving fringe signal-to-noise ratio with a two-step photographic process. Part II," J. Opt. Soc. Am. A 2, 1721-1724 (1985)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-2-10-1721

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