Pulsed magnetic flux leakage techniques for crack detection and characterisation

Sophian, Ali and Tian, Gui Yun and Zairi, Sofiane (2006) Pulsed magnetic flux leakage techniques for crack detection and characterisation. Sensors and Actuators A: Physical , 125. pp. 186-191. ISSN 0924-4247

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Abstract

Magnetic flux leakage (MFL) techniques have been widely used for non-intrusively inspecting steel installations by applying magnetization. In the situations where defects may take place on the near and far surfaces of the structure under inspection, current {MFL} techniques are unable to determine their approximate size. Consequently, an extra transducer may have to be included to provide the extra information required. This paper presents a new approach termed as pulsed magnetic flux leakage (PMFL) for crack detection and characterisation. The probe design and method are introduced. The signal features in time�frequency domains are investigated through theoretical simulations and experiments. The results show that the technique can potentially provide additional information about the defects. Lastly, potential applications are suggested.

Item Type:	Article (Journal)
Additional Information:	7258/46708
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA165 Engineering instruments, meters, etc. Industrial instrumentation
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Dr Ali Sophian
Date Deposited:	14 Jan 2016 16:17
Last Modified:	14 Jan 2016 16:17
URI:	http://irep.iium.edu.my/id/eprint/46708

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