Abstract
The technique of active damping by hemispheric torquing results in much shorter ready times than other methods of damping free-rotor gyros. The experimentation that has been done with an air-bearing model indicates that the increased electronics complexity necessary to realize the method is small. The experiments with the model have successfully shown the ability of the gyro to completely invert the spin axis in the rotor automatically. Although not presented here, fine damping using the optical flat has been shown to be mathematically feasible. The fine damping using a D pattern readout was not discussed, but has been done. The expected reduction in damping time using active damping is at least of the order of 90%, and it is possible to design the system such that damping is completed simultaneously with spin-up. References
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