Paper Title:
Image Reconstruction of Blockage in the Continuous and Stepped Pipelines by Noninvasive Acoustic Method
  Abstract

The image of a semi-circular blockage and location in the uniform and stepped pipe was reconstructed by measuring the eigen-frequency shift of the resonance and anti-resonance frequencies of multi-sine acoustic waves. In this study we have used different boundary conditions from previous works of Wu and Fricke [1] and De Salis and Oldham [2] to determine the blockage cross-sectional area and position. The results agreed with real fractional cross sectional area and position in the both continuous and stepped pipes. New approach showed a better quality of reconstructed image with small ripple number and the false dummy blockage signal was also reduced. The present method of blockage image reconstruction is a noninvasive nondestructive and can meet the integrity evaluation implementation for all types of transmission pipeline

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
1640-1643
DOI
10.4028/www.scientific.net/KEM.321-323.1640
Citation
S. S. Jung, S.I. Cho, Y. T. Kim, C.U. Cheong, H. C. Kim, "Image Reconstruction of Blockage in the Continuous and Stepped Pipelines by Noninvasive Acoustic Method", Key Engineering Materials, Vols. 321-323, pp. 1640-1643, 2006
Online since
October 2006
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Price
$32.00
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