Abstract
3D acoustical imaging for both NDT and Echography purposes needs of 2D array transducers. Among them, the sectorial design gives good performances maintaining enough resolution. A piezoelectric transducer array having a piezocomposite as substrate is designed, simulated, and tested following time and frequency measurement techniques. Simulations were performed with a multilayer scheme based on the KLM circuit. Time response, inter-element cross-coupling and acoustic aperture are measured.
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