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Transmission line model for simulation of guided-wave defect signals in piping

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4 Author(s)
Myoung-Seon Choi ; Dept. of Phys., Yeungnam Univ., Kyungsan, South Korea ; Sain-Young Kim ; Hegeon Kwun ; Light, G.M.

A simple transmission line model for analytically simulating the guided-wave signal reflected from a volumetric defect of arbitrary shape in piping is described. In the model, the guided-wave interaction with a defect is treated as the one-dimensional problem of plane wave reflection from a boundary of multilayered media of different acoustic impedances in a transmission line. Results of simulation show good qualitative agreement with experimentally measured signals.

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Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on  (Volume:51 ,  Issue: 5 )