International Journal of Physical Sciences Vol. 3(2), pp. 021-031, December 2015 ISSN 2331-1827 ©2015 Academe Research Journals

Full Length Research Paper

Simulation of the crosstalk effect of a piezoelectric matrix array oscillating in the lateral mode

P. Acevedo¹*, D. F. García-Nocetti¹, M. Recuero² and I. Sánchez³

¹Universidad Nacional Autónoma de México, Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Circuito. Escolar s/n, Ciudad Universitaria, 04510, México D.F., México.

²Universidad Politécnica de Madrid, Escuela Técnica Superior de Ingenieros Industriales, c/ José Gutiérrez Abascal, 2. 28006 - Madrid, España.

³Universidad Nacional Autónoma de México, Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Mérida, Avenida Colón 503-F x Av. Reforma y Calle 62-A Colonia Centro, 97000, Mérida, Yucatán, México.

*Corresponding author. E-mail: pedro.acevedo@iimas.unam.mx.

Accepted 16 November, 2015

Abstract

The simulation of the crosstalk phenomenon which originated from the lateral vibration mode of a piezoelectric ceramic PZT (Lead Zirconate Titanate) in a matrix array is presented. This simulation was made using the Finite Element Method (FEM) in a 9 elements (3 × 3) piezoelectric matrix array, at a frequency of 8 MHz. Simulations showed the presence of crosstalk due to the lateral vibration mode. To validate the simulated results, an experimental 3 × 3 matrix array was constructed. This study presents some of the problems which came up in the construction of the matrix array transducers where crosstalk is an inherent problem. The lateral vibration mode has been little or not analyzed so far. Simulated and experimental results presented in this study showed that this vibration mode is one of the main factors in the generation of the crosstalk phenomenon.

Key words: Crosstalk, matrix array transducers, Lead Zirconate Titanate (PZT), Finite Element Method (FEM).