Paper Title:
Application of Magnetostrictive Transducer for the Long-Range Guided Wave Inspection
  Abstract

The leakage of the pipes is a major issue for the safety of industrial structures. However, in many cases, because of their geometrical complexity and inaccessibility, it is difficult to inspect them by the conventional NDE method. A long-range guided wave inspection, thus, is an option to inspect them. A torsional vibration mode, T(0,1) shows many advantages in a long-range guided wave examination of a pipe, such as no dispersion characteristic, no radial displacement and low attenuation. However, it is not easy to fabricate a transducer with an array of piezoelectric elements for generation of torsional vibration mode and even expensive. Recently a magnetostrictive metal strip sensor was used for a generation of the torsional vibration modes in a pipe and this technique has shown several advantages for practical applications. This study investigated the applicability of a long-rang guided ultrasonic method to the detection of artificial notches even in the presence of various foreign objects.

  Info
Periodical
Key Engineering Materials (Volumes 345-346)
Edited by
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
Pages
1295-1298
DOI
10.4028/www.scientific.net/KEM.345-346.1295
Citation
Y. M. Cheong, S. Kim, H. K. Jung, "Application of Magnetostrictive Transducer for the Long-Range Guided Wave Inspection", Key Engineering Materials, Vols. 345-346, pp. 1295-1298, 2007
Online since
August 2007
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Price
$32.00
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