Eddy Current Inspection

Eddy Current Technology uses electromagnetic fields to induce eddy currents within the test piece. Different methods exist for different types of technologies, but the general premise is to measure the changes in the eddy currents to detect defects in the material.

Uses for Eddy Current Testing

Eddy Current Testing (ECT) is used extensively within TesTex NDT powering many of our technologies. We used ECT for the following types of inspection:

  • Eddy Current Weld Inspection
  • Eddy Current Tube Inspection from the I.D.
  • Saturated Eddy Current Technique (SECT) Tank Floor Scanning
  • Pulsed Eddy Current Technique (PECT) Corrosion Under Insulation Scanning
Eddy Current Inspection Diagram

Weld Testing

Eddy Current Weld Testing (ECWT) can be used in place of magnetic particle inspection or dye penetrant inspection and has the advantage of being able to penetrate through paint and other non ferrous coatings up to approximately 4mm.

Tube Inspection

Eddy Current Tube Inspection is great for non ferrous tubing and provides rapid inspection compared to other types such as IRIS. ECT tube inspection can record and save tube data rapidly to then be analysed by a technician at a later date.

Saturated Eddy Current Technique

SECT is a technology we use based on Saturated Low Frequency Eddy Current Technique. It scans tank floors by saturating them with an electromagnet and then uses Eddy Current to detect defects in the plate as it scans over it. With this technique we are able to detect pits, holes, cracking, wall loss and differentiate the orientation of the flaw depending on if it is a top side or bottom side flaw.

Corrosion Under Insulation (CUI)

Our PECT system is capable of detecting CUI occurring beneath insulation without the need to remove any of the insulation. The hand scanning tool can reach any accessible areas and record what is happening on the topside of the steel beneath the insulation. This saves time and of course money, not having to replace the insulation. The system will also detect internal wall losses.

Case Studies

Comprehensive Reporting

You will receive a comprehensive inspectors report detailing results and the findings of the inspection. The standard of our reports is just one of the things that makes us stand out in the industry.

If you would like to discuss your NDT inspection project, would like to see a sample report, or to arrange an initial no-obligation meeting, call us on 01469 541 586 or complete our contact form below: