On the efficacy of in-probe pre-amplifiers for piezoelectric 2D arrays

Conference paper (2020)

Authors

Enrico Boni University of Florence

F. Fool ImPhys/Medical Imaging -

M.D. Verweij ImPhys/Medical Imaging - , Erasmus MC

H.J. Vos Erasmus MC, ImPhys/Medical Imaging -

Piero Tortoli University of Florence

Research Group

ImPhys/Medical Imaging () (TU Delft)

3D imaging Matrix array In-probe preamplifiers Sparse array

To reference this document use:

http://resolver.tudelft.nl/uuid:648cfab2-54a6-44b5-bf75-51f3c488ccff

More Info

expand_more

Published Date

2020

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Medical Imaging

Abstract

Transducer arrays for 3D imaging are characterized by elements distributed over a 2D surface. The dimensions of each element are typically one half-wavelength in both x- and y-directions. Such small elements inherently have a high electrical impedance. When the elements are connected to a probe cable, the high cable capacitance decimates the delivered voltage and results in a poor Signal to Noise Ratio (SNR). This may have dramatic effects, especially in sparse arrays, where a small number of elements contributes to the beamformed signal. In this paper we demonstrate that the use of in-probe preamplifiers in a sparse PZT probe is valuable to significantly increase the SNR.

Files

09251800.pdf

(pdf | 0.477 Mb)

Download not available