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. Author manuscript; available in PMC: 2016 Apr 7.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Dec;62(12):2092–2105. doi: 10.1109/TUFFC.2015.007268

Figure 4.

Figure 4

Pressure waveform of a microtripsy pulse. Because peak negative pressure larger than 20 MPa cannot be directly measured, this estimated waveform was linearly summed from the directly measured waveforms of 6 separate element groups (3 adjacent elements per group).