<abstract xmlns="http://www.w3.org/1999/xhtml"><p> In this paper, an analytical model is proposed to predict magnetic flux leakage (MFL) signals from the surface defects in ferromagnetic tubes. The analytical expression consists of elliptic integrals of first kind based on the magnetic dipole model. The radial (Bz) component of leakage fields is computed from the cylindrical holes in ferromagnetic tubes. The effectiveness of the model has been studied by analyzing MFL signals as a function of the defect parameters and lift-off. The model predicted results are verified with experimental results and a good agreement is observed between the analytical and the experimental results. This analytical expression could be used for quick prediction of MFL signals and also input data for defect reconstructions in inverse MFL problem.</p></abstract>

In this paper, an analytical model is proposed to predict magnetic flux leakage (MFL) signals from the surface defects in ferromagnetic tubes. The analytical expression consists of elliptic integrals of first kind based on the magnetic dipole model. The radial (Bz) component of leakage fields is computed from the cylindrical holes in ferromagnetic tubes. The effectiveness of the model has been studied by analyzing MFL signals as a function of the defect parameters and lift-off. The model predicted results are verified with experimental results and a good agreement is observed between the analytical and the experimental results. This analytical expression could be used for quick prediction of MFL signals and also input data for defect reconstructions in inverse MFL problem.

An Analytical Model for Prediction of Magnetic Flux Leakage from Surface Defects in Ferromagnetic Tubes

National Engineering College, Department of Electronics and Instrumentation Engineering, Kovilpatti, Tamilnadu, India

Vel Tech Multitech Dr.Rangarajan Dr.Sakunthala Engineering College, Department of Electrical and Electronics Engineering,Chennai, India

Measurement Science Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

In this paper, an analytical model is proposed to predict magnetic flux leakage (MFL) signals from the surface defects in ferromagnetic tubes. The analytical...

An Analytical Model for Prediction of Magnetic Flux Leakage from Surface Defects in Ferromagnetic Tubes

Published Online: Feb 19, 2016

Page range: 8 - 13

Received: Oct 06, 2015

Accepted: Jan 28, 2016

DOI: https://doi.org/10.1515/msr-2016-0002

Keywords
Analytical modeling, elliptic integrals, surface defect, dipolar magnetic charge

© by V. Suresh

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

An Analytical Model for Prediction of Magnetic Flux Leakage from Surface Defects in Ferromagnetic Tubes

Published Online: Feb 19, 2016

Page range: 8 - 13

Received: Oct 06, 2015

Accepted: Jan 28, 2016

DOI: https://doi.org/10.1515/msr-2016-0002

KeywordsAnalytical modeling, elliptic integrals, surface defect, dipolar magnetic charge

© by V. Suresh

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Analytical modeling, elliptic integrals, surface defect, dipolar magnetic charge