Progress in Research of Electromagnetic Acoustic Transducer Technique for the Plate-Like Structure Defect Detection

The recent research advances in Electromagnetic Acoustic Transducer technique for the plate-like structure defect detection were reviewed. An important introduction about progresses in Electromagnetic Acoustic Transducer Technique for the plate-like structure defect detection was given including lamb wave generation with EMAT, design and optimization of EMAT, ultrasonic guided wave focusing technique and imaging technique. Some direction or issues which should be further researched and its benefit for this technique to be popularized and applied were put out also.