Transient Eddy-Current Nondestructive Evaluation: Benchmark Data for Backface Slots in a Plate

Abstract

The results of a benchmark experiment for transient eddy-current nondestructive evaluation are reported. The benchmark configuration corresponds to the canonical geometry of an air-cored probe coil positioned above a conductive plate containing a long back-face slot. The coil is excited by an exponentially-damped step function current and measurements are made of the change in the transient magnetic field due to the slot. The aim of the work is to provide experimental data for validation of theoretical models under development within the wider NDE community and to provide a common geometry against which the performance of a range of such models can be compared. A further aim of the work is to stimulate the ongoing development of quantitative methods in transient eddy-current research.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2011
Accession Number
ADA555940

Entities

People

  • M. E. Ibrahim
  • S. K. Burke

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Alternating Current
  • Eddy Currents
  • Experimental Data
  • Frequency
  • Frequency Domain
  • Geometry
  • Hall Effect
  • Impedance
  • Magnetic Fields
  • Measurement
  • Platforms
  • Square Waves
  • Step Functions
  • Structural Integrity
  • Test And Evaluation
  • Time Domain
  • Urban Areas

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Structural Health Monitoring of Composite Structures.