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Effects of Apparatus Parameters on MFL Signals Using Orthogonal Experimental Design

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Abstract:

Magnetic flux leakage (MFL) is a non-destructive testing method used to inspect ferrous materials. However, there are a variety of factors that can affect the MFL inspection tool’s ability to detect and characterize anomalies. An orthogonal experimental design (OED) method is applied to study the effects of apparatus parameters on MFL signals. Integration of OED method of analysis into a routine sample preparation technique could improve the repeatability and quantization capabilities of MFL tools. Three key apparatus parameters, namely permanent magnet (PM) height, magnetic concentrator (MC) length and backing iron (BI) length are chosen for the present study. The importance of each of these key parameters on MFL signals for different defects is determined by a series of experiments.

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Periodical:

Applied Mechanics and Materials (Volumes 44-47)

Pages:

3524-3528

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.44-47.3524

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Cite this paper

Online since:

December 2010

Authors:

Qiang Song

Keywords:

Magnetic Flux Leakage (MFL), Nondestructive Testing (NDT), Orthogonal Experimental Design

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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