A New Testing Method Combining EMAT with Eddy Current
A new testing method,which combines EMAT (Electromagnetic Acoustic Transducer) with eddy current testing technology, is presented. The method aims to achieve testing the inside and surface defection simultaneously, increasing the efficient, lower the cost, and getting more information of the material to yield the reliable result than using one testing method of them separately. The implementary procedure of the method is that the signal in the combination probe is sent to the EMAT testing channel and the eddy current testing channel separately, passing through signal processing, and analyzed, finally the result analysis by synthesize. In the paper, the principle of the combination method is analyzed, and the combination probe and the system are designed. Three different steel samples are experimented with the combination measurement method. The result of the experiment indicates that the new method is feasible.
Electromagnetic acoustic transducer Eddy current testing Lorentz force
Fengying HUANG Zhenggan ZHOU Junming LIN
School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, EddySun (XiaMen) Electronic Co. Ltd., Xiamen 361001, P. R. China
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
1088-1095
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）