Abstract

The performance of incoherent image processing methods applied to PIV is discussed. The contributions of experimental parameters and postexperiment processing hardware in the final accuracy of PIV velocity estimates are considered.

© 1989 Optical Society of America

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References

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  1. I. Grant, G. H. Smith, “Modern Developments in Particle Image Velocimetry,” Opt. Lasers Eng. 9, 245–264 (1988).
    [CrossRef]
  2. C. J. D. Pickering, N. A. Halliwell, “Laser Speckle Photography and Particle Image Velocimetry: Photographic Film Noise,” Appl Opt. 23, 2961–2969 (1984).
    [CrossRef] [PubMed]
  3. I. Grant, A. Liu, “Method for the Efficient Incoherent Analysis of Particle Image Velocimetry Images,” Appl. Opt. 28, 1745–1748 (1989).

1989 (1)

1988 (1)

I. Grant, G. H. Smith, “Modern Developments in Particle Image Velocimetry,” Opt. Lasers Eng. 9, 245–264 (1988).
[CrossRef]

1984 (1)

C. J. D. Pickering, N. A. Halliwell, “Laser Speckle Photography and Particle Image Velocimetry: Photographic Film Noise,” Appl Opt. 23, 2961–2969 (1984).
[CrossRef] [PubMed]

Grant, I.

I. Grant, A. Liu, “Method for the Efficient Incoherent Analysis of Particle Image Velocimetry Images,” Appl. Opt. 28, 1745–1748 (1989).

I. Grant, G. H. Smith, “Modern Developments in Particle Image Velocimetry,” Opt. Lasers Eng. 9, 245–264 (1988).
[CrossRef]

Halliwell, N. A.

C. J. D. Pickering, N. A. Halliwell, “Laser Speckle Photography and Particle Image Velocimetry: Photographic Film Noise,” Appl Opt. 23, 2961–2969 (1984).
[CrossRef] [PubMed]

Liu, A.

Pickering, C. J. D.

C. J. D. Pickering, N. A. Halliwell, “Laser Speckle Photography and Particle Image Velocimetry: Photographic Film Noise,” Appl Opt. 23, 2961–2969 (1984).
[CrossRef] [PubMed]

Smith, G. H.

I. Grant, G. H. Smith, “Modern Developments in Particle Image Velocimetry,” Opt. Lasers Eng. 9, 245–264 (1988).
[CrossRef]

Appl Opt. (1)

C. J. D. Pickering, N. A. Halliwell, “Laser Speckle Photography and Particle Image Velocimetry: Photographic Film Noise,” Appl Opt. 23, 2961–2969 (1984).
[CrossRef] [PubMed]

Appl. Opt. (1)

Opt. Lasers Eng. (1)

I. Grant, G. H. Smith, “Modern Developments in Particle Image Velocimetry,” Opt. Lasers Eng. 9, 245–264 (1988).
[CrossRef]

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Figures (3)

Fig. 1
Fig. 1

Digitized image of particle images after image grouping.

Fig. 2
Fig. 2

Velocity error curves for incoherent analysis of PIV images as a function of velocity and laser pulse rate. (A) M2 = 5.83, (B) M2 = 20.6.

Fig. 3
Fig. 3

Velocity error curves for various M2 magnification values at a fixed pulse rate (dt = 0.0005 s).

Equations (5)

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M 1 = image size object size = image distance object distance .
M 2 = image size on CCD camera image plane image size on CCD camera object plane .
[ R ] = [ R x R y ] = [ R H R υ ] / ( M 1 × M 2 ) mm / pixel = [ R H R υ ] / M ,
R x = 18 μ m / pixel , R y = 13 μ m / pixel , R x = 6 μ m / pixel , R y = 4 μ m / pixel ,
Δ V V = Δ N N + Δ t t + Δ M M ,

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