Magnetic nondestructive detection of cracks in a distribution line

Authors
Nonaka, T Sato, F Matsuki, H Sato, T
Citation
T. Nonaka et al., Magnetic nondestructive detection of cracks in a distribution line, IEEE MAGNET, 37(4), 2001, pp. 2746-2748
Citations number
1
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
2746 - 2748
Database
ISI
SICI code
0018-9464(200107)37:4<2746:MNDOCI>2.0.ZU;2-N
Abstract
An important problem in the electric power industry is the degradation of d istribution lines. We propose a nondestructive detection system for cracks in a distribution line by measuring the magnetic field around the distribut ion line when it is energized. In this paper, we examine the distribution o f the magnetic field around a 50 Hz distribution line in a laboratory exper iment. From our observations, we develop and refine an algorithm for detect ing cracks by using the magnetic field direction.