Improving Flaw Detection through Integration of a Novel Eddy Current Probe with Fluxgate Magnetic Sensor

T. Tesfaye, M. S. Mohammed, K. Ki-Seong (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Abstract: The objective of this study is to improve thedetection capability of eddy current testing by developing a novel eddycurrent probe. The developed probe is composed of six excitation coilsmade at different areas and suitably aligned with a single-axissensitive DRV425EVM fluxgate sensor. The distribution of magnetic fieldintensity and eddy current density of the developed probe werecalculated using ANSYS 2019R3 (Maxwell-3D) simulation software. Thesimulation results revealed that the new probe design enhances thedetection capability and the spatial resolution compared to theconventional design that uses a double-D coil. Experiments were carriedout using the double-D coil as reference, under the same input parameterto detect flaws with various sizes and locations. The experimentalresults validated the simulation results and showed that the sensitivityand spatial resolution of the developed sensor are much better thanthose obtained by the conventional probe.

Original languageEnglish
Pages (from-to)98-106
JournalPhysical Mesomechanics
Volume24
Issue number1
DOIs
Publication statusPublished - Jan 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Double-D
  • DRV425EVM fluxgate sensor
  • Eddy current density
  • Eddy current testing
  • Magnetic field intensity
  • Probe
  • Sensitivity
  • Spatial resolution

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