Feasibility study of magnetic flux leakage method for condition monitoring of wall thinning on tube

Autor: Yasuhiro Kamada, Yumi Kurisawa, Satoru Kobayashi, Katsuyuki Ara, Hiroaki Kikuchi
Rok vydání: 2010
Předmět:
Zdroj: International Journal of Applied Electromagnetics and Mechanics. 33:1087-1094
ISSN: 1875-8800
1383-5416
Popis: This paper discusses a feasibility of magnetic flux leakage ( MFL) method for estimation of wall thinning on tube in nuclear power plant. A single magnetic yoke is fixed on the s pecimen, and then a magnetic field sensor scans the leakage field between the yoke legs. The single magnetic yoke with gau ss meter fixed at the center of the yoke is also scanned over specimens having a slit. From both FEM analysis and experimental measurement, it is clarified that estimation of the size of slit fabricated in the specimen using profile of leakage field is possible; this indicates monitoring conditions of wall t hinning will be possible by MFL method.
Databáze: OpenAIRE