Geometric optimization of a differential planar eddy currents probe for non-destructive testing

Luis S. Rosado, João C. Gonzalez, Telmo Jorge Gomes dos Santos, Pedro M. Ramos

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

tThe influence of the geometrical parameters of an eddy currents planar probe intended for non-destructive testing is reported in this paper. Finite element modeling simulations were used to evaluatethe effect of each geometrical parameter on the probe response amplitude and spatial discriminationwhile testing an arbitrary defect. A representative set of probes was produced and used to experimentallyvalidate the simulation study. The reported results show that modifications of the studied parameters cansubstantially improve the probe performance targeting specific testing requirements. Additional probeswere produced using a parameters combination optimized for two different testing situations. It wasalso shown that the modification of the defects properties does not substantially modifies the relativeeffectiveness of the additional probes produced.
Original languageEnglish
Pages (from-to)96-105
JournalSensors and Actuators A: Physical
Volume197
DOIs
Publication statusPublished - 1 Aug 2013

Keywords

  • Differential probe
  • Eddy currents
  • Geometrical optimization
  • Non-destructive testing
  • Planar probe

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