2D modeling of mechanical cross-coupling in linear arrays

Nicola Lamberti; Francisco Montero de Espinosa; Antonio Iula; Massimo Pappalardo

doi:10.1117/12.350663

21 June 1999 2D modeling of mechanical cross-coupling in linear arrays

Nicola Lamberti, Francisco Montero de Espinosa, Antonio Iula, Massimo Pappalardo

Proceedings Volume 3664, Medical Imaging 1999: Ultrasonic Transducer Engineering; (1999) https://doi.org/10.1117/12.350663
Event: Medical Imaging '99, 1999, San Diego, CA, United States

Abstract

The influence of the mechanical coupling between the elements (cross-coupling) on the final performances of a piezoelectric array transducer is a well-known matter. Different solutions have been proposed to reduce, as much as possible, its effects. The approaches studied are not very generalist, because normally they are related to a specific transducer design. The model we proposed is based on a 2D model of the array, which is able to describe the vibration of each element (piezoceramic and polymer) both in the radiation (thickness) and the lateral (width) direction and, therefore, to take the coupling between the elements into account.

Citation Download Citation

Nicola Lamberti, Francisco Montero de Espinosa, Antonio Iula, and Massimo Pappalardo "2D modeling of mechanical cross-coupling in linear arrays", Proc. SPIE 3664, Medical Imaging 1999: Ultrasonic Transducer Engineering, (21 June 1999); https://doi.org/10.1117/12.350663

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