ECT – Eddy Current Non-Destructive Testing Service
ECT Eddy Current Testing is electromagnetic testing using the principle of magnetic induction to detect and characterise flaws and material thickness in conductive materials. It is very sensitive and needs a skilled NDT technician to set up the equipment conduct the tests and interpret the results. Test equipment is relatively expensive, requires annual calibration, and the technician is trained and certified to high standards to conduct this work.
ECT is typically applied to conducting material surface and sub-surface to detect flaws such as cracks, pits, corrosion and wall thickness. We use this method to locate and characterise flaws and material variations in:
- conductive tubing e.g. pipes, heat exchangers, boiler tubes, oil cooler tubes, chiller tubes;
- conductive aluminium skins and structures e.g. wings, wheel hubs, brakes and fuselage plates and skins;
- conductive holes e.g screw and bold holes;
- conductive welds e.g. toe cracks; and
- thickness measurement e.g. paint coating thickness on conductive substrate.
The ECT technique is portable and suitable for on-site applications.