＜正＞A theory model is established to describe the voltage-current response function. The peak amplitude and the zero-crossing time of the transient signal is extracted as the imaging features, array pulsed eddy current （PEC） imaging is proposed to detect corrosion. The test results show that this system has the advantage of fast scanning speed, different imaging mode and quantitative detection, it has a broad application in the aviation nondestructive testing.
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机译：Tube welding inspection by eddy current with sectorial magnetising unitACONTROLE Mesure Systemes designs and develops a range of non-destructive testing equipment by ultrasonic and eddy current to inspect tubes, bars, wires and plates. The company offers an eddy current system to detect small flows (holes and cracks) or to identify discontinuities on welds: the sectorial magnetising unit.
