Level I

General Theory:

  • Brief History of Testing
  • Basic Principles of Testing
  • Generation of Eddy Currents by means of an AC field
  • Effect of fields created by Eddy Currents
  • Effect of change of impedance on instrumentation
  • Terminology and units
  • Principles of magnetisation.
  • Magnetisation
  • electromagnetism theory
  • Flux leakage theory and principle
  • Readout Mechanism
  • Types of Eddy Current Sensing Elements
  • Types of Flux Leakage Sensing Elements
  • Safety as applicable to Eddy Current Testing and Electrical Safety

Specific Theory:

Application of the Method and use of Codes, Specifications and Procedures, applicable to the Company, including the relevant control checks.

Level II

General Theory:

  • 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 Magnetisation for Flux
  • Leakage Testing
  • Coupling
  • Field Strength and Its Selection
  • Field Orientation for Flux Leakage Testing
  • Instrument Design Consideration
  • Safety as applicable to Eddy Current Testing and Electrical Safety

General Theory:

Application of the Method to the Specific requirements of the Company, in particular making reference to those Codes, Specifications and Procedures used by the Company, including the relevant control checks.

Coding for ET Training Courses

INTRO/PRAC4 - 5 Days Practical Introduction to Eddy Current Testing (40 Hours)

General Theory:

  • ETW4 - Half Day Refresher Course for ET Welds (4 Hours)
  • ETW8 - Full Day Refresher Course for ET Welds (8 Hours)
  • ETW40 - 5 Days Course for ET Welds suitable for PCN/SNT Level 1 (40 Hours)
  • ETW80 - 10 Days Course for ET Welds suitable for PCN/SNT Level 2 Direct (80 Hours)