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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2016 Oct 20;64(2):374–390. doi: 10.1109/TUFFC.2016.2619913

TABLE I.

Parameters of the focal waveform at different levels of nonlinear distortion

F# 0.75 1 1.25 1.5 1.75 2
Level 1: Quasi-linear p+,, MPa 21.4 12.1 8.1 5.8 4.5 3.6
|p−|, MPa 11.5 6.5 4.4 3.2 2.5 2.0
Level 2: Developed shocks p+, As, MPa 150.2 80.5 51.4 35.8 26.4 20.4
|p−|, MPa 23.7 13.8 9.4 6.8 5.2 4.2
Level 3: Saturation As, MPa 248.3 136.5 89.2 63.4 47.6 37.2
p+, MPa 203.9 110.5 71.1 50.0 37.2 28.9
|p−|, MPa 46.7 27.3 19.0 14.0 10.9 8.7