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Proceedings Paper

Recent advances on pipe inspection using guided waves generated by electromagnetic acoustic transducers
Author(s): Milos Vasiljevic; Tribikram Kundu; Wolfgang Grill; Evgeny Twerdowski
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Paper Abstract

For several years guided waves have been used for pipe wall defect detection. Guided waves have become popular for monitoring large structures because of the capability of these waves to propagate long distances along pipes, plates, interfaces and structural boundaries before loosing their strengths. The current technological challenges are to detect small defects in the pipe wall and estimate their dimensions using appropriate guided wave modes and to generate those modes relatively easily for field applications. Electro-Magnetic Acoustic Transducers (EMAT) can generate guided waves in pipes in the field environment. This paper shows how small defects in the pipe wall can be detected and their dimensions can be estimated by appropriate signal processing technique applied to the signals generated and received by the EMAT.

Paper Details

Date Published: 10 April 2008
PDF: 12 pages
Proc. SPIE 6935, Health Monitoring of Structural and Biological Systems 2008, 693507 (10 April 2008); doi: 10.1117/12.776271
Show Author Affiliations
Milos Vasiljevic, Univ. of Arizona (United States)
Tribikram Kundu, Univ. of Arizona (United States)
Wolfgang Grill, Univ. of Leipzig (Germany)
Evgeny Twerdowski, Univ. of Leipzig (Germany)

Published in SPIE Proceedings Vol. 6935:
Health Monitoring of Structural and Biological Systems 2008
Tribikram Kundu, Editor(s)

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