EDDY CURRENT TESTING

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