建筑设备科学与工程学院

第四届IEEE工业电子与应用国际会议论文集

中文关键字：pulsed eddy current,thickness evaluation, nondestr，英文关键字：pulsed eddy current,thickness evaluation, nondestr

Pulsed eddy current (PEC) is a new nondestructive testing (NDT) technique using a broadband pulse excitation with rich frequency information and has wide application potentials. Pulsed eddy current (PEC) signals are investigated as tools for the evaluation of plate thickness by using the reflection type PEC probe, which consists of an exciter coil and one sensor coil. Analysis of PEC signals shows that the area difference of the induction voltage curve closely correlation to the plate thickness and interval between the probe and the plate (Lift-off). Experiments accord with the numerical simulations well. The evaluation error is less than 5%. And it is effective in remove lift-off noise in reflection PEC signals.

陈登峰

zhaoliang,jiqichun,Chen Dengfeng

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2009-05-01