Eddy Current Testing (ET)
Description
ET detects surface and sub-surface defects in conductive materials by inducing eddy currents and analyzing their interaction with the material.
Application
Suitable for detecting cracks, corrosion, and coating thickness in pipes, heat exchangers, and aircraft components.
step by step Process
- Probe Setup: Place an eddy current probe on the surface of the material.
- Signal Generation: Pass an alternating current through the probe to create eddy currents in the material.
- Signal Analysis: Monitor and interpret changes in eddy current flow caused by discontinuities. All interpretations and discontinuities found are evaluated, sized, and compared to the applicable code, standard or customer specifications to determine if they meet the requirements to be deemed acceptable or rejectable.
- Data Interpretation: Use specialized software to analyze signals for defect detection.