Eddy Current Testing

The Tester nondestructive testing team has extensive capabilities for testing a wide variety of ferrous and nonferrous metal components by eddy current, with experience in power plants, refineries and other industrial facilities.  To perform eddy current testing on a specimen, a transducer is passed over the object being inspected. The transducer is connected to a portable electronic base unit which displays a real time data feed.

ECT PRINCIPLE

ECT a coil of conductive wire is excited with an alternating electrical current. This wire coil produces an alternating magnetic field around itself. The magnetic field oscillates at the same frequency as the current running through the coil. When the coil approaches a conductive material, currents opposite to the ones in the coil are induced in the material

Eddy Current inspection (ET) is a non destructive inspection method which utilizes electromagnetic current to detect surface and near-surface irregularities in ferrous and non-ferrous materials by inducing an eddy current field in the part under test. Defects, such as laminations, cracks, incomplete fusion, inclusions, and voids can typically be detected

APPLICATION

• Heat Exchangers
• Surface Condensers
• Feedwater Heaters
• AC Chillers
• Boilers
• Air Coolers
• Piping
• Steam Generators, etc.