Thickness of metallic layers from pulsed eddy-current nondestructive measurements

【作者】 赵亮； 陈登峰； 卢英； 李昌华；

【Author】 ZHAO Liang CHEN Deng-feng LU Ying LI Chang-hua (Department of Information and Automation,Xi’an University of Architecture and Technology,Xi’an 710055,China)

【机构】 Department of Information and Automation,Xi’an University of Architecture and Technology；

【摘要】 <正>By using pulsed eddy-current(PEC),a neural network was adopted to forecast the thickness of metal and the distance between coil and metal.The relationship between the transient current induced and different metallic thickness was analyzed theoretically.The result shows that three features of the signal including the peak height,the time of occurrence of the first peak,and a zero-crossing time,are obtained.The measurement error is within 2%.更多还原

【Abstract】 By using pulsed eddy-current(PEC),a neural network was adopted to forecast the thickness of metal and the distance between coil and metal.The relationship between the transient current induced and different metallic thickness was analyzed theoretically.The result shows that three features of the signal including the peak height,the time of occurrence of the first peak,and a zero-crossing time,are obtained.The measurement error is within 2%.更多还原