Eddy-Current & Surface Methods (ET / PT / MT)
Eddy-current flaw detectors, fluorescent dye-penetrant and magnetic-particle systems with UV lighting for detecting surface and near-surface cracks.
About this category
Surface-method NDT catches the cracks that visual inspection misses: eddy-current (ET) instruments and probes find fatigue cracks and corrosion in conductive airframe and engine parts — fastener holes, lap joints, blade roots — while fluorescent penetrant (PT) and magnetic-particle (MT) lines reveal surface-breaking defects under controlled UV-A lighting. These are workhorse shop methods governed by maintenance-manual call-outs and process specs (Nadcap, ASTM E1417/E1444). Procurement spans handheld and rotating eddy-current flaw detectors, encircling and surface coils, penetrant chemistry, MPI benches and the high-intensity UV LED lamps and meters that make fluorescent indications visible. Buyers match instrument frequency range, probe geometry and UV irradiance to their certified process.
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