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Continuous two-way focusing in ultrasonic annular array system without significant reduction in frame rate

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3 Author(s)
Oh, J.T. ; Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea ; Park, J.C. ; Park, S.B.

It is shown by simulation and experiment that a very good lateral resolution in the ultrasonic annular array system can be obtained, without greatly sacrificing the frame rate, by using only a few annuli (one after another), instead of every annulus, for pulse transmission and by receiving the echo at all annuli to apply two-way continuous focusing.

Published in:

Electronics Letters  (Volume:28 ,  Issue: 23 )

Date of Publication:

5 Nov. 1992

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