Design and Optimization of a High Performance Ultrasound Imaging Probe Through FEM and KLM Model

L. Spicci, and M. Cati
Esaote SpA
Florence, Italy
Published in 2011

The present paper describes the development of a full FEM model for linear array high performance 5MHz ultrasound imaging transducer. As a preliminary design, a mono dimensional electro-acoustical KLM model was realized, then the complete FEM was developed and optimized.

The optimized transducer was manufactured, so that agreement between transducer measured performances and simulation results were checked and both KLM and FEM models were validated. Moreover, it was shown that FEM allows to simulate important properties of the transducer, such as directivity and beam steering capability (see figure), and study their dependency on materials’ principal parameters.