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Pulse eddy current thermography (PECT) is used in detecting small flaws in metal surface. PECT is based on high frequency (HF) electromagnetic radiation generating eddy current and monitoring the heat produced using thermal imager. Lately we have seen lot of systems with good performance, but none is portable or commercially available. All are quite large only suitable for stationary use. We report a small system including innovative excitation coil, compact HF generator and uncooled thermal imager. Combined with equivalent wavefield based software enables to detect and determine the dimensions of the flaw with high sensitivity.
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