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Flow Velocity Field Tomography Using Multiple Ultrasonic Beam Detectors and High Order Correlation Analysis

  • Kyung-Young Jhang
  • Takuso Sato
Part of the Acoustical Imaging book series (ACIM, volume 17)

Abstract

In this paper, a new method for tomographic reconstruction of velocity field which consists of a set of streams with different velocities, directions, positions and radiuses of curvatures with statistically independent fluctuations is proposed.

In this method, five ultrasonic beams which are arranged in proper positions and directions are used as the line detectors and the fifth-order correlation analysis is applied to the detected data. Then information about each stream is transformed as a corresponding peak in the fifth-order correlation space, hence the velocity field can be reconstructed by finding flow parameters from the measured correlation data in connection with the geometries of the measuring system.

The usefulness of this method is confirmed by computer simulations as well as experiments which are carried out by using 4.5 MHz ultrasonic wave system.

Keywords

Velocity Field Moment Function Tomographic Reconstruction Line Detector Ultrasonic Beam 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Kyung-Young Jhang
    • 1
  • Takuso Sato
    • 1
  1. 1.The Graduate School at NagatsutaTokyo Institute of TechnologyNagatsuta, Midori-ku, Yokohama-shiJapan

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