| 摘要 |
<p>A direct digital dither drive for a laser gyro dither motor (244B) including a digital microcomputer (100) which controls the dithering of a laser gyro (10) to prevent lock in of the laser beams. The digital drive senses a dither position and schedules internal A/D conversions using an A/D conversion arbitration scheme. The period frequency and location of the minimum and maximum drive are determined using the microcontroller (100). Accurate dither drive is accomplished using a digital analog feedback system which compensates for real time changes in dither pickoff (244A) and dither (244B) drive components.</p> |
