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Proceedings Paper

Software control architecture for characterization of a 48-element 30-MHz linear array
Author(s): Y. O. Chen; Timothy A. Ritter; J. Sabarad; K. Kirk Shung; Richard L. Tutwiler; Qindi Wu
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Paper Abstract

The purpose of this system is to have the capability to characterize the performance of very high frequency transducers and arrays. The analog front end is computer controlled by a set of de-multiplexers and multiplexers. The output of the multiplexer network is connected to a TGC array, which is interfaced to a high-speed data acquisition system. A software GUI (Graphical User Interface) has been design to accomplish this task. A programmable digital I/O interface allows collection of RF channel data and has the capability to be interfaced to a very high frequency analog beamformer under construction. The system front-end electronics (pulsers, receivers, T/R switches, multiplexers, and demultiplexers) have been characterized. The digital I/O signal interface has been integrated and tested. The hardware front end has been integrated to the array interface distribution panel. The individual transducer elements impulse responses have been evaluated and the performance of the array has been tested with a wire test phantom to characterize lateral and axial resolution.

Paper Details

Date Published: 30 May 2001
PDF: 12 pages
Proc. SPIE 4325, Medical Imaging 2001: Ultrasonic Imaging and Signal Processing, (30 May 2001); doi: 10.1117/12.428232
Show Author Affiliations
Y. O. Chen, The Pennsylvania State Univ. (United States)
Timothy A. Ritter, The Pennsylvania State Univ. (United States)
J. Sabarad, The Pennsylvania State Univ. (United States)
K. Kirk Shung, The Pennsylvania State Univ. (United States)
Richard L. Tutwiler, The Pennsylvania State Univ. (United States)
Qindi Wu, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 4325:
Medical Imaging 2001: Ultrasonic Imaging and Signal Processing
Michael F. Insana; K. Kirk Shung, Editor(s)

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