Title :
An improved four focal zone high frequency ultrasound analog beamformer
Author :
Stitt, J.P. ; Tutwiler, R.L. ; Shung, K. Kirk
Author_Institution :
Appl. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
An improved analog beamformer is described that is used to process the data from a high frequency linear array. This unit is a part of a test system, which has the capability to characterize ultrasound transducer arrays up to 128 elements. Improvements include increasing the accuracy of the dynamic focusing capability and an increased bandwidth of the summing circuit.
Keywords :
biomedical electronics; biomedical transducers; biomedical ultrasonics; medical image processing; ultrasonic focusing; ultrasonic transducer arrays; delay switch; dynamic focusing capability accuracy; early cancer detection; increased lateral resolution; medical diagnostic imaging; ocular imaging; summing circuit; summing circuit bandwidth; ultrasound transducer arrays characterization; Apertures; Bandwidth; Biomedical transducers; Circuit testing; Delay lines; Focusing; Summing circuits; Switches; System testing; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1106215
