Lamb wave signal selective enhancement by an improved design of meander-coil electromagnetic acoustic transducer*

Project supported by the National Natural Science Foundation of China (Grant Nos. 51507171 and 51577184).

Sun Wen-Xiu1, 2, Liu Guo-Qiang1, 2, †, Xia Hui1, Xia Zheng-Wu1
       

(color online) Conventional EMATs with (a) coil No. 1, and (b) coil No. 2 as transmitter and receiver at driving frequency f = 400 kHz.