Eddy Current Testing
Eddy current Testing – Level 1
Eddy Current Testing
Level I Course Outline - 40 hours
Scope
This course prepares a candidate to Perform Surface Eddy Current Inspection and
Applicable Standards and Documents
- Perform Specific Calibrations
- Specific NDT
- Specific Evaluations for Accept or Reject Determinations according to written Instructions
- Record Results
Training
General Training
Electrical Parameters
- Resistance
- Inductance
- Impedance
Electromagnetism
- Faraday's Law
- Lift Off Curve
- Generation of Eddy Currents
- Impedance changes by Eddy Currents
- Effect of change of impedance on instrumentation
Impedance Curves
- Conductivity Curve
- Lenz's Law
- Permeability
Types of Eddy Current Sensing Elements
- Probes
- Absolute
- Differential
- Lift-off
- Theory of operation
Materials
- Inspection of Non-Ferromagnetic Materials
- Inspection of Ferromagnetic Materials
Special Probes
- Lift Off Insensitive
- Fastener Probes- Ring Probe
Calibration Standards
- Conductivity Standards
- EDM notch Surface Standards
Applications
- Surface Inspection
- Inspection of Airframes
- Airframe Fastener Inspection
- Turbine Blade Inspection
- Inspection of Petrochemical Piping
- Surface Weld Inspection
Specific Training
- Surface ECT Procedure
- ASME Section V
- Practical Training
- Setting up the Instrument
- Selection of Frequency
- Calibrations
- Test on Various Samples
- Prepare test Report
Examinations
- General
- Specific
- Practical Tests
Candidates must score a minimum of 70 % in each test and a minimum of 80% average for all the three tests.