Title :
Theory and experiment for the design of piezoelectric element for phased arrays
Author :
Lin, Y. ; Dodson, J.M. ; Hamilton, J.D. ; Kluiwstra, J.-U.A. ; Cain, C. ; Grosh, K.
Author_Institution :
Dept. of Mech. Eng. & Appl. Mech., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper, combined finite element simulations and experimental measurements are used to study the dynamic response of fluid-loaded piezoelectric element for phased array design. An efficient and robust numerical methodology for 3D coupled structural acoustic model is developed. A confocal Fabry-Perot laser interferometer is used to measure the surface response. Comparisons are made between numerical results and experimental results. Important features in the transducer design such as radiation patterns in the fluid domain, as well as the electromechanical behavior of the transducer, are evaluated
Keywords :
biomedical transducers; biomedical ultrasonics; finite element analysis; modelling; radiation therapy; ultrasonic transducer arrays; confocal Fabry-Perot laser interferometer; efficient robust numerical methodology; experimental measurements; finite element simulations; fluid-loaded piezoelectric element; phased array design; phased array piezoelectric element; radiation patterns; surface response; transducer electromechanical behavior; Acoustic measurements; Acoustic transducers; Fabry-Perot; Finite element methods; Fluid dynamics; Laser modes; Phase measurement; Phased arrays; Response surface methodology; Robustness;
Conference_Titel :
Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-4153-8
DOI :
10.1109/ULTSYM.1997.663337
