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Probe Optimization for Velocity Induced Eddy Current Testing in Aluminium

Tiago J. Rocha, Helena G. Ramos, A. Lopes Ribeiro, Dário J. Pasadas
  • Abstract:
    The railroad network requires constant inspection of rail integrity. Early defect detection is of utmost importance to maintain safety and reduce costs. This work proposes a new non-destructive probe configuration to be used in an inspection method based in eddy currents, which optimizes the detection of defects in a conductive material moving relative to the probe. This approach uses velocity induced eddy currents where the motion of a permanent magnetic field induces currents on the surface of the metal, and it is not restricted by the inspection speed limitations of more traditional methods. A differential sensing coil is used as a magnetic sensor that can detect current flow perturbations caused by the presence of defects.
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  • DOI:
    _unreg_tc10-2014.007

Event details:

  • IMEKO TC:
    TC10
  • Event name:
    TC10 Workshop on Technical Diagnostics 2014
  • Title:

    13th IMEKO TC10 Workshop "Advanced measurement tools in technical diagnostics for systems' reliability and safety"

  • Place:
    Warsaw, POLAND
  • Time:
    26 June 2014 - 27 June 2014