CONTINUOUS HYSTERESIS WIPER FOR ELECTROMAGNET IN INERTIAL GUIDANCE SYSTEM

摘要

An inertial guidance system wherein one or more electromagnets are placed in a magnetic flux exchange relation with the flywheel of a gyroscope and are adapted to restore the gyroscope to a null position upon a signal from one or more pick-offs. An alternating current is applied to the energizing coils of the electromagnets and is of a magnitude large enough to nullify residual magnetic flux in the electromagnets due to hysteresis.