Eddy Current Testing is one of the oldest and most widely used NDT methods to find discontinuities in thin conductive materials.  However, eddy currents are useful for many things besides flaw detection.  Eddy Current sensors are used in many industries to monitor and detect a myriad of material conditions.  Criterion NDT has an excellent web page providing case studies for many different types of line testing.  Click the image to the right to learn more about line ECT applications from the Criterionn NDT website.