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Proceedings Paper

Detection of corrosion in pipe using the magnetostrictive sensor technique
Author(s): Hegeon Kwun; John J. Hanley; A. E. Holt
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Paper Abstract

A technique for inspecting steel pipes or tubes using magnetostrictive sensors (MsSs) is described. Signals acquired from approximately 6.6-m-long, 164-mm-diameter, 5-mm-wall steel pipes before and after inducing a simulated corrosion defect are given. The data show that the MsS technique is very sensitive to corrosion-type defects and can be used for 100% volumetric inspection of a long segment of piping from a single sensor location. Also, the ability to operate the sensor with a substantial gap to the outside surface of pipe makes the MsS technique suitable for inspection of piping under thermal insulation or lagging.

Paper Details

Date Published: 19 June 1995
PDF: 9 pages
Proc. SPIE 2459, Nondestructive Evaluation of Aging Maritime Applications, (19 June 1995); doi: 10.1117/12.212549
Show Author Affiliations
Hegeon Kwun, Southwest Research Institute (United States)
John J. Hanley, Southwest Research Institute (United States)
A. E. Holt, Southwest Research Institute (United States)


Published in SPIE Proceedings Vol. 2459:
Nondestructive Evaluation of Aging Maritime Applications
Richard B. Mignogna, Editor(s)

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