Level I:  40 hours

  • Introduction to electromagnetic testing
  • Electromagnetic theory
  • Readout mechanisms
  • Types of eddy current sensing elements

Level II:  40 hours

  • Review of electromagnetic theory
  • Factors that affect coil impedance
  • Factors that affect flux leakage fields
  • Signal to noise ratio
  • Selection of test frequency
  • Selection of method of magnetization for flux leakage testing
  • Coupling
  • Field strength and its selection
  • Field orientation of flux leakage testing
  • Instrument design considerations
  • Applications