NDT Evaluation Checklist: Written Procedures for Eddy Current Inspection Mobile App
Eddy current testing is used to find surface and near surface defects in conductive materials.
How does it work?
It is used by the aviation industry for defect detection such as cracks, corrosion damage, and thickness verification, and for materials characterization such as metal sorting and heat treatment verification. Applications range from fuselage and structural inspection, to engines, to landing gear, to wheels and is the technique most often used after visual. Eddy current inspection involves intensive setup and calibration procedures with known reference standards of the same material as the part. Probes of appropriate design and frequency must be used. During certification, written procedures should be required, which are applicable to the part or group of parts being tested. During audit/evaluation and surveillance the adherence to the procedures should be verified. Procedures may include the elements within the NDT Evaluation Checklist: Written Procedures for Eddy Current Inspection.