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Top view of the device hung on the pendulum. The origin O1 of displacement for mirror 1 is located at rest position of pendulum. The origin O2 of displacement for mirror 2 is located at rest position of pendulum.
Both graphs are measured with a square-shape signal at 20 V in the coil with core. The top and bottom vertical axes show raw data of displacement vs. time in micrometer, measured on channel 1 for mirror 1 and on channel 2 for mirror 2 at 100 Hz (a) and at 15 MHz (b). (b) The signal is applied with cycled excitations.
The displacement is calculated with where and are the displacements measured on channels 1 and 2, respectively. (a) Experimental displacements (symbols) and numerical calculations (continuous line) vs. the excitation voltage at 15 MHz (coil with core). (b) Experimental displacements and mechanical power vs. the applied frequency at 20 V.
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