Computer generated dither drive

Details Computer generated dither drive Computer generated dither drive

G - Physics

01

C

345/10

G01C 19/70 (2006.01)

Patent

CA 2009788

A dither drive system for a ring laser gyroscope includes a computer, a digital to analog converter, a filter and a power amplifier. The system also includes a frame mounted to a flexure having a resonant frequency, the flexure being mounted between a base and the frame such that the frame may be dithered relative to the base. The dither frequency is sensed and a digital signal that corresponds to a specified dither drive signal is produced. The digital signal is converted to a corresponding analog signal and the dither drive signal is toggled to drive the flexure at its resonant frequency. This system avoids the necessity of using much of the expensive hardware included in previous systems.

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