What is Eddy Current Testing?

Eddy current testing is a non-contact electromagnetic testing technique used for the inspection of conductive materials without the need to remove non-conductive coatings. An alternating current is passed through a coil in order to create an alternating magnetic field which is used to induce a localised current (eddy current) into the material under test. Discontinuities such as fatigue cracks will interrupt the flow of eddy currents and alter the terminal impedance of the test coil. The amplitude and phase of the received signal can be interpreted to ascertain the severity and exact location of any discontinuities found. Eddy current is routinely used to inspect a wide range of different materials and components across several fields of engineering including oil and gas, nuclear, power generation and aerospace.

What are the responsibilities of a individual who is certified to Eddy Current Level 2?

An individual certified to Eddy Current Level 2 has demonstrated competence to perform NDT according to Eddy Current Testing procedures. Within the scope of the competence defined on the certificate, Level 2 personnel may be authorised by the employer to:

  • Select the Eddy Current technique for the test method to be used;
  • Define the limitations of application of the testing method;
  • Translate NDT codes, standards, specifications and procedures into NDT instructions adapted to the actual working conditions;
  • Set up and verify equipment settings;
  • Perform and supervise tests;
  • Interpret and evaluate results according to applicable standards, codes, specifications or procedures;
  • Prepare Eddy Current written instructions
  • Carry out and supervise all tasks at or below level 2;
  • Provide guidance for personnel at or below level 2, and
  • Report the results of Eddy Current test

40 hours Eddy Current Level 1 training at Lavender International covers the following:

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.

We can provide Eddy Current training suitable for PCN/EN473/ISO 9712 Levels 1, 2, and 3, and ASNT Level 3. Alternatively we can provide training suitable for candidates working to an employer written practice based on SNT-TC-1A; EN4179 and NAS410. Eddy Current Testing is separated into three specific product sectors for certification purposes: Welds, Wrought Products (Forgings), and Tubes.

Lavender International can provide Eddy Current training suitable for PCN/EN473/ISO 9712 Levels 1, 2, and 3. Alternatively we can provide training suitable for candidates working to an employer written practice based on SNT-TC-1A; EN4179 and NAS410.

Eddy Current Testing is separated into three specific product sectors for certification purposes: Welds, Wrought Products (Forgings), and Tubes.

The Eddy Current Level 1 examination includes a general theory paper, specific paper, and a practical exam.

The PCN requirements for Eddy Current Level 1 are: 40 hours training, previous to the exam, and 3 months supervised work experience, to be obtained either before the examination, or within 24 months after passing the exam.

Once the 40 hours training have been obtained, the examination passed, and 3 months supervised work experience obtained within 24 months of passing the exam, PCN will issue certification.

The options for Eddy Current Level 1 examinations are:

Initial Candidate
Resit (Theory)
Resit (Practical)
Recertification

To be eligible for the PCN Level 1 examination, an eye test must be passed (near vision and colour).

The PCN requirements for Level 1 Eddy Current work experience are:  3 months supervised work experience, to be obtained either before the examination, or within 24 months after passing the exam.

Once the 40 hours training have been obtained, the examination passed, and 3 months supervised work experience obtained within 24 months of passing the exam, PCN will issue certification.

For employer based schemes the expected amount of work experience should be determined in the written practice.

Level 1 courses have the same start dates as level 2.
Please view the level 2 page for the course schedule.

Initial:

UK office – Penistone On-site locations
Click here for available dates Contact us

Recertification:

UK office – Penistone
contact us

If you would like further information about this course, please contact us.

Scientific Calculator
Overalls/Lab Coat
Safety Boots

PCN CERTIFICATION:
Candidates MUST bring their PCN Wallet Card.
If you do not have a wallet card bring some other form of identification showing a photograph, i.e. Passport or Photo Driving Licence.

All other equipment and training materials (with the exception of Level 3 Text Books) are provided by Lavender International.
Protective gloves, protective eye glasses and plastic aprons are also available for the use of students.

Course Enquiry - ET

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