Abstract

We have designed a special purpose computer system for visualizing fluid flow using digital holographic particle tracking velocimetry (DHPTV). This computer contains an Field Programmble Gate Array (FPGA) chip in which a pipeline for calculating the intensity of an object from a hologram by fast Fourier transform is installed. This system can produce 100 reconstructed images from a 1024×1024-grid hologram in 3.3 sec. It is expected that this system will contribute to fluid flow analysis.

© 2008 Optical Society of America

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References

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  7. N. Masuda, T. Ito, K. Kayama, H. Kono, S. Satake, T. Kunugi, and K. Sato, "Special purpose computer for digital holographic particle tracking velocimetry," Opt. Express 14, 587-592 (2006).
    [CrossRef]
  8. FFTW Home Page, http://www.fftw.org/
  9. T. Ito, N. Masuda, K. Yoshimura, A. Shiraki, T. Shimobaba, and T. Sugie,"A special-purpose computer for electroholography HORN-5 to realize a real-time reconstruction," Opt. Express  13, 1923-1932 (2005).
    [CrossRef] [PubMed]
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    [CrossRef]

2006 (1)

2005 (2)

T. Ito, N. Masuda, K. Yoshimura, A. Shiraki, T. Shimobaba, and T. Sugie,"A special-purpose computer for electroholography HORN-5 to realize a real-time reconstruction," Opt. Express  13, 1923-1932 (2005).
[CrossRef] [PubMed]

S. Satake, T. Kunugi, K. Sato, T. Ito and J. Taniguchi, "Three-dimensional flow tracking in a micro channel with high time resolution using micro digital-holographic particle-tracking velocimetry," Opt. Rev. 12, 442-444 (2005).
[CrossRef]

2004 (1)

S. Satake, T. Kunugi, K. Sato, and T. Ito, "Digital Holographic Particle Tracking Velocimetry for 3-D Transient Flow around an Obstacle in a Narrow Channel," Opt. Rev. 11, 162-164 (2004).

2003 (1)

2000 (1)

S. Murata and N. Yasuda, "Potential of digitalholography in particle measurement," Opt. Laser Technol. 32, 567-574 (2000).
[CrossRef]

1995 (1)

1994 (2)

Adrian, R. J.

Barnhart, D. H.

Hussain, F.

Ito, T.

N. Masuda, T. Ito, K. Kayama, H. Kono, S. Satake, T. Kunugi, and K. Sato, "Special purpose computer for digital holographic particle tracking velocimetry," Opt. Express 14, 587-592 (2006).
[CrossRef]

T. Ito, N. Masuda, K. Yoshimura, A. Shiraki, T. Shimobaba, and T. Sugie,"A special-purpose computer for electroholography HORN-5 to realize a real-time reconstruction," Opt. Express  13, 1923-1932 (2005).
[CrossRef] [PubMed]

S. Satake, T. Kunugi, K. Sato, T. Ito and J. Taniguchi, "Three-dimensional flow tracking in a micro channel with high time resolution using micro digital-holographic particle-tracking velocimetry," Opt. Rev. 12, 442-444 (2005).
[CrossRef]

S. Satake, T. Kunugi, K. Sato, and T. Ito, "Digital Holographic Particle Tracking Velocimetry for 3-D Transient Flow around an Obstacle in a Narrow Channel," Opt. Rev. 11, 162-164 (2004).

Juptner, W.

Katz, J.

Kayama, K.

Kono, H.

Kreis, T.

Kunugi, T.

N. Masuda, T. Ito, K. Kayama, H. Kono, S. Satake, T. Kunugi, and K. Sato, "Special purpose computer for digital holographic particle tracking velocimetry," Opt. Express 14, 587-592 (2006).
[CrossRef]

S. Satake, T. Kunugi, K. Sato, T. Ito and J. Taniguchi, "Three-dimensional flow tracking in a micro channel with high time resolution using micro digital-holographic particle-tracking velocimetry," Opt. Rev. 12, 442-444 (2005).
[CrossRef]

S. Satake, T. Kunugi, K. Sato, and T. Ito, "Digital Holographic Particle Tracking Velocimetry for 3-D Transient Flow around an Obstacle in a Narrow Channel," Opt. Rev. 11, 162-164 (2004).

Malkiel, E.

Masuda, N.

Memg, H.

Murata, S.

S. Murata and N. Yasuda, "Potential of digitalholography in particle measurement," Opt. Laser Technol. 32, 567-574 (2000).
[CrossRef]

Papen, G. C.

Satake, S.

N. Masuda, T. Ito, K. Kayama, H. Kono, S. Satake, T. Kunugi, and K. Sato, "Special purpose computer for digital holographic particle tracking velocimetry," Opt. Express 14, 587-592 (2006).
[CrossRef]

S. Satake, T. Kunugi, K. Sato, T. Ito and J. Taniguchi, "Three-dimensional flow tracking in a micro channel with high time resolution using micro digital-holographic particle-tracking velocimetry," Opt. Rev. 12, 442-444 (2005).
[CrossRef]

S. Satake, T. Kunugi, K. Sato, and T. Ito, "Digital Holographic Particle Tracking Velocimetry for 3-D Transient Flow around an Obstacle in a Narrow Channel," Opt. Rev. 11, 162-164 (2004).

Sato, K.

N. Masuda, T. Ito, K. Kayama, H. Kono, S. Satake, T. Kunugi, and K. Sato, "Special purpose computer for digital holographic particle tracking velocimetry," Opt. Express 14, 587-592 (2006).
[CrossRef]

S. Satake, T. Kunugi, K. Sato, T. Ito and J. Taniguchi, "Three-dimensional flow tracking in a micro channel with high time resolution using micro digital-holographic particle-tracking velocimetry," Opt. Rev. 12, 442-444 (2005).
[CrossRef]

S. Satake, T. Kunugi, K. Sato, and T. Ito, "Digital Holographic Particle Tracking Velocimetry for 3-D Transient Flow around an Obstacle in a Narrow Channel," Opt. Rev. 11, 162-164 (2004).

Schnars, U.

Sheng, J.

Shimobaba, T.

Shiraki, A.

Sugie, T.

Taniguchi, J.

S. Satake, T. Kunugi, K. Sato, T. Ito and J. Taniguchi, "Three-dimensional flow tracking in a micro channel with high time resolution using micro digital-holographic particle-tracking velocimetry," Opt. Rev. 12, 442-444 (2005).
[CrossRef]

Yasuda, N.

S. Murata and N. Yasuda, "Potential of digitalholography in particle measurement," Opt. Laser Technol. 32, 567-574 (2000).
[CrossRef]

Yoshimura, K.

Appl. Opt. (4)

Opt. Express (2)

Opt. Laser Technol. (1)

S. Murata and N. Yasuda, "Potential of digitalholography in particle measurement," Opt. Laser Technol. 32, 567-574 (2000).
[CrossRef]

Opt. Rev. (2)

S. Satake, T. Kunugi, K. Sato, and T. Ito, "Digital Holographic Particle Tracking Velocimetry for 3-D Transient Flow around an Obstacle in a Narrow Channel," Opt. Rev. 11, 162-164 (2004).

S. Satake, T. Kunugi, K. Sato, T. Ito and J. Taniguchi, "Three-dimensional flow tracking in a micro channel with high time resolution using micro digital-holographic particle-tracking velocimetry," Opt. Rev. 12, 442-444 (2005).
[CrossRef]

Other (1)

FFTW Home Page, http://www.fftw.org/

Supplementary Material (1)

» Media 1: MOV (1051 KB)     

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Figures (5)

Fig. 1.
Fig. 1.

Block diagram of the FFT-HORN 2 pipeline

Fig. 2.
Fig. 2.

1024×1024-grid image of the whole system.

Fig. 3.
Fig. 3.

The reconstructed images.

Fig. 4.
Fig. 4.

(1.0MB)Movie of reconstructed partciles flow. [Media 1]

Fig. 5.
Fig. 5.

The reconstructed images of a section parallel to the x-z plane.

Tables (2)

Tables Icon

Table 1. Comparison between the calculation time of FFT–HORN2 and a personal computer.

Tables Icon

Table 2. Comparison between the calculation time of FFT–HORN2 cluster system and a personal computer.

Equations (7)

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ϕ ( x i , y i , z i ) = 1 i λ N 2 N 2 N 2 N 2 I α exp ( i k r α i ) r α i d x α d y α ,
r α i = ( x α x i ) 2 + ( y α y i ) 2 + z i 2 ,
ϕ ( x i , y i , z i ) exp ( i k z i ) i λ z i N 2 N 2 N 2 N 2 I α exp [ i k 2 z i { ( x α x i ) 2 + ( y α y i ) 2 } ] d x α d y α .
g ( x i x α , y i y α ) = exp ( i k z i ) i λ z i exp [ ik 2 z i { ( x α x i ) 2 + ( y α y i ) 2 } ] .
ϕ ( x i , y i , z i ) = N 2 N 2 N 2 N 2 I ( x α , y α ) g ( x i x α , y i y α ) d x α d y α .
Φ ( n , m ) = I ̂ ( n , m ) G ( n , m ) ,
G ( n , m ) = exp ( i k z i ) · exp [ i π ( λ z i N 2 Δ P ) · ( m 2 + n 2 ) ] ,

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