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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Sep;57(9):2076–2090. doi: 10.1109/TUFFC.2010.1655

TABLE VII.

Comparison of Displacement and Contrast From the Images Shown in Fig. 15

1-layer
 3-layer
System
voltage (%)		 Displacement
(μm)		 Contrast System
voltage (%)		 Displacement
(μm)		 Contrast
67 1.9 0.6 57 1.9 0.6
77 2.4 0.6 67 2.5 0.6
87 3.1 0.6 77 3.2 0.6

Note that the low-loss 3-layer array shows equivalent displacements at lower voltage transmit levels and equivalent contrast across all reported transmit voltages. The variations in displacement and contrast over 4 trials were negligible (<0.06 μm and < 0.02, respectively).