Cross-talk phenomena in a 1-3 connectivity piezoelectric composite

Many works have been devoted to the estimation of cross-talk effects in one-dimensional ultrasound probes. The main aspect limiting the interest of these works concerns the lack of control of the electrical boundary conditions applied to the array which may dramatically affect the results of cross-t...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2004-11, Vol.116 (5), p.2948-2955
Main Authors: WILM, Mikaël, ARMATI, Raphaël, DANIAU, William, BALLANDRAS, Sylvain
Format: Article
Language:English
Subjects:
Acoustics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Transduction
acoustical devices for the generation and reproduction of sound
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Summary:Many works have been devoted to the estimation of cross-talk effects in one-dimensional ultrasound probes. The main aspect limiting the interest of these works concerns the lack of control of the electrical boundary conditions applied to the array which may dramatically affect the results of cross-talk measurements. In this paper the concept of mutual admittances is recalled. Computations based on a periodic finite-element analysis are performed, jointly to measurements of cross talks in the case of a 1-3 connectivity piezoelectric composite. Quantitative comparisons show the capability of the proposed approach to predict almost all the contributions experimentally observed in a large frequency range.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.1804631