DAMPER GEAR, AND GYROCOMPASS

摘要

PROBLEM TO BE SOLVED: To provide a damper gear for supporting a container containing a rolling wheel ball, in which the inclination of the container is reliably suppressed without generating a dead band even in the case where the acceleration of a hull is remarkably high.SOLUTION: A damper gear comprises: a double-tube bellows 4c having one end 4c1 connected to a support 3 side and the other end 4c2 connected to a container 5 side and having a magnetic fluid 4c5 filled therein; an electromagnet 4i for establishing a magnetic field to raise the viscosity of the magnetic fluid 4c5; and an acceleration measuring unit 4 for energizing the electromagnet 4i when the acceleration of a hull exceeds a threshold value.