EDDY CURRENT TESTING LEVEL 2

EDDY CURRENT TESTING

In Eddy Current testing electrical currents are generated in a conductive material by an induced magnetic field. Distortions in the flow of the electric current (eddy currents) caused by imperfections or changes in a material’s conductive properties will cause changes in the induced magnetic field. These changes, when detected, indicate the presence of the imperfection or change in the test material.

TYPICAL APPLICATIONS 

• Thickness Determination of Materials
• Conductivity Sorting of Materials
• Inspection of Welds
• Inspection of Aerospace Materials

SCOPE

• This course prepares a candidate to perform surface eddy current and piping inspection
  • Perform Specific Calibrations
  • Specific NDT
  • Specific Evaluations for Accept or Reject Determinations according to written Instructions
  • Record Results

WHO SHOULD ATTEND

This is an excellent course for those wishing to pursue a career or renewing credentials in the NDT nondestructive testing industry, beginning service technicians, anyone involved in commercial, military, petrochemical, aircraft and aerospace inspection industries, and all those wishing to pursue a career in NDT Nondestructive testing, and facility personnel who are responsible for application of eddy current tests or oversight of their application.

COURSE CONTENT

1. GENERAL KNOWLEDGE 

1.1. Basic Principles of Non-Destructive Testing (NDT)
1.2. Materials and defects 
1.3. Processing and defects
1.4. Materials in service 
1.5. Quality and standardization

2. PHYSICAL PRINCIPLES 

2.1. Electricity 
2.2. Magnetism 
2.3. Magnetic field produced by a current 
2.4. Electromagnetic induction law 
2.5. Factors effecting eddy currents

3. INSTRUMENTATION 

3.1. Principles and basic characteristics of eddy current probes 
3.2. Eddy current distribution relative to coil position
3.3. Reaction of different types of probes according to coil layout
3.4. Technology and Practical characteristics of probes 
3.5. Main function and adjustment of the equipment
3.6. Different types of eddy current equipment
3.7. Auxiliary devices

4. TESTING PROCEDURES 

4.1. Influence of defect position and orientation 
4.2. Influence of material temperature 
4.3. Influence of structure and geometry of tested parts (noise) 
4.4. Coupling influence
4.5. Influence of relative part/probe speed 
4.6. Reference standards used in eddy current testing 
4.7. Inspection method 
4.8. Preparation of written instructions for level 1

5. APPLICATIONS 

5.1. Surface testing
5.2. Tube testing 
5.3. Multi-frequency testing

6. PRESENTATION OF RESULTS 

6.1. Eddy current testing codes and standards
6.2. Standards for equipment characteristics and verification
6.3. Written procedures for eddy current testing 
6.4. Inspection techniques and their use 
6.5. Records and reports

7. SAFETY

7.1. Implementation of industrial safety standards in facilities and equipment in their operation.

8. PRACTICLE

8.1. Surface inspection
6.2. Coating inspection
6.3. Inspection of piping

9. EXAMINATIONS

9.1. General theory.
9.2. Specific theory.
9.3. Written procedure.
9.4. Practical.

Note : Candidates must score a minimum of 70 % for each paper.