Fig. 4: LDV results for tangential mode.
From: Self-aligned single-electrode actuation of tangential and wineglass modes using PMN-PT
a LDV snapshots of disk resonator with r = 60 μm radius shown at different phases of a single oscillation cycle at φ = 0°, φ = 90°, φ = 180°, and φ = 270°. b Rate of rotation is calculated from the x- and y-displacement, and plotted with respect to applied signal amplitude. Linear fit of the data points is presented in the inset
