Directivity and Controllability of Electromagnetic Ultrasonic Transducer
2020
The EMAT for Lamb wave tomography needs to have the ability to excite Lamb along the omnidirectional excitation and effectively receive Lamb waves from all directions. The structure should be axisymmetric. Therefore, in this section, the principle and feasibility of the omnidirectional Lamb wave in the aluminum plate will be explained by the establishment of a complete energy exchange model for the single turn loop EMAT with a relatively simple structure and axisymmetric structure.
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