Enhancement of Contrast in Detection of Small Defects in Pipes Using Guided Waves

2016
Aleksejs Tatarinovs, E. Davydov, Jevgenijs Barkanovs

The reduced-scale model study has demonstrated improved detection of small defects in tube by LRUT using guided waves. Echo signals were collected from 4 magnetostrictive transducers positioned in steps along the tube. The processing included time-shifting and multiplication of signals in the region-of-analysis thus to exaggerate helpful responses related to the torsional wave and suppress parasite acoustic modes. As the result, considerable enhancement of contrast was achived.

Atslēgas vārdi
ultrasonic tecting, long range guided waves, tubes, pipelines
Hipersaite
http://www.bg-s-ndt.org/Aplication/Docs/articles/Innovative.pdf

Tatarinovs, A., Davydov, E., Barkanovs, J. Enhancement of Contrast in Detection of Small Defects in Pipes Using Guided Waves. No: Innovative Solutions in Repair of Gas and Oil Pipelines. J.Barkanovs, M.Mihovski, V.Sergienko red. Sofia: Bulgarian Society for Non-destructive Testing Publishers, 2016. 27.-36.lpp. ISBN 978-619-90662-0-1.

Publikācijas valoda
English (en)