| 摘要 |
A method for maintaining the amplitude of oscillations of a mirror system comprising a high-Q resonant mirror driven by a high speed drive signal. Sensors monitor the sweep amplitude of the high-Q resonant mirror and a parameter of the drive signal is adjusted to maintain the sweep amplitude of the mirror at a constant value. According to one embodiment, the frequency of the drive signal is adjusted to more closely track the resonant frequency of the mirror, and according to another embodiment, the amplitude of the drive signal is increased to increase the amplitude of the sweep motion of the mirror. According to a third embodiment, the sweep amplitude may be maintained by adjusting both the drive signal amplitude and the drive signal frequency.
|
