Title :
Transmission line model for simulation of guided-wave defect signals in piping
Author :
Choi, Myoung-Seon ; Kim, Sang-Young ; Kwun, Hegeon ; Light, Glenn M.
Author_Institution :
Dept. of Phys., Yeungnam Univ., Kyungsan, South Korea
fDate :
5/1/2004 12:00:00 AM
Abstract :
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.
Keywords :
acoustic impedance; ultrasonic materials testing; acoustic impedances; guided-wave inspection technique; guided-wave signal; multilayered media; one-dimensional problem; piping; plane wave reflection; transmission line model; volumetric defect; Acoustic pulses; Acoustic reflection; Acoustic waves; Analytical models; Corrosion; Impedance; Inspection; Optical reflection; Shape; Transmission lines;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2004.1320836
