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Study on simulation and experiment of magnetic flux leakage inspection for inner pipeline

Bin Wu

Open publisher page 3 citations

Abstract

Based on the principle of pipeline's magnetic flux leakage(MFL),and the specification Φ325mm tube detector is used as investigated subject.A mathematical model of MFL field is presented based on the basic theory of finite element(FE)analysis,and a two-dimensional entity model of MFL inspection system is also established by ANSYS software to simulate magneto statics,from which MFL signals and the distribution of magnetic line of force produced by rectangle defects are obtained.A workbench for inspection and measurement MFL is built with the tube detector,and the multi-channel flaw leakage signals obtained by the Hall sensor array are gathered,two groups of data are contrasted and analyzed.The experimental results demonstrate that the numerical results agree well with the experimental data.

About this research paper

What this paper is about

Based on the principle of pipeline's magnetic flux leakage(MFL),and the specification Φ325mm tube detector is used as investigated subject.A mathematical model of MFL field is presented based on the basic theory of finite element(FE)analysis,and a two-dimensional entity model of MFL inspection system is also established by ANSYS software to simulate magneto statics,from which MFL signals and the distribution of magnetic line of force produced by rectangle defects are obtained.A workbench for inspection and measurement MFL is built with the tube detector,and the multi-channel flaw leakage signals obtained by the Hall sensor array are gathered,two groups of data are contrasted and analyzed.The experimental results demonstrate that the numerical results agree well with the experimental data.

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OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Based on the principle of pipeline's magnetic flux leakage(MFL),and the specification Φ325mm tube detector is used as investigated subject.A mathematical model of MFL field is presented based on the basic theory of finite element(FE)analysis,and a two-dimensional entity model of MFL inspection system is also established by ANSYS software to simulate magneto statics,from which MFL signals and the distribution of magnetic line of force produced by rectangle defects are obtained.A workbench for inspection and measurement MFL is built with the tube detector,and the multi-channel flaw leakage signals obtained by the Hall sensor array are gathered,two groups of data are contrasted and analyzed.The experimental results demonstrate that the numerical results agree well with the experimental data.

Key concepts: Magnetic flux leakage, Workbench, Rectangle, Engineering, Hall effect sensor, Leakage (economics), Acoustics, Pipeline (software)

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