Finite Element Analysis of the Generation and Propagation Processes of Electromagnetic Ultrasonic Transverse Wave in stainless steel plate

摘要

The working process of electromagnetic ultrasonic transducer (EMAT) which involves the intercoupling between electromagnetic field, force field and acoustic field is complex. This paper analyzes the structure and principle of EMAT. And on the basis of it, using COMSOL Multiphysics finite element software to simulate the EMAT, it obtains the distribution characteristics of electromagnetic ultrasonic excitation, electromagnetic field and force field in the process of ultrasonic propagation, providing a theoretical basis for the design and optimization of EMAT.