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. 2019 Jan 10;5(1):13. doi: 10.3390/jimaging5010013

Figure 2.

Figure 2

Measured acoustic pressure as a function of time at a distance r of 7.65 mm, 10.65 mm, and 24.65 mm. A total of 32 measurements were averaged to get a signal-to-noise ratio (SNR) of approximately 570 instead of 100 for single measurements. The time scale was shifted for each signal, which allows plotting all of the signals with the same time scale.