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Pulsed magnetic flux leakage probe for crack detection and characterisation

Sophian, A., Tian, Gui Yun and Zairi, S. (2006) Pulsed magnetic flux leakage probe for crack detection and characterisation. Sensors and Actuators A Physical, 125 (2). pp. 186-191. ISSN 0924-4247

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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
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Schools: School of Computing and Engineering
Depositing User: Briony Heyhoe
Date Deposited: 04 Apr 2008 08:49
Last Modified: 28 Aug 2021 10:38


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