One method uses friction to apply the needed torque: the gyroscope in a gyrocompass is not completely free to reorient itself; if for instance a device connected to the axis is immersed in a viscous fluid, then that fluid will resist reorientation of the axis.
The direction a gyrocompass points is independent of the magnetic field of the Earth and depends upon the properties of the gyroscope and upon the rotation of the Earth. Operating principles. One form of gyroscope is a spinning wheel mounted so that the direction of its spin axis has universal rotational freedom.
early 1900 hundred sherry gyro compass with stand. STILL HAS ALL THE PAINT OVER THE BRASS HOUSING. THERE IS A PIN MISSING AT THE HEAD TO HOLD THE COMPASS IN PLACE.
Gyro Compass on Ships: Construction, Working, and Usage. A Gyro compass is a form of gyroscope, used widely on ships employing an electrically powered, fast-spinning gyroscope wheel and frictional forces among other factors utilising the basic physical laws, influences of gravity and the Earth’s rotation to find the true north.
Definition of gyrocompass. : a compass consisting of a continuously driven gyroscope whose spinning axis is confined to a horizontal plane so that the earth's rotation causes it to assume a position parallel to the earth's axis and thus point to the true north. See gyrocompass defined for kids.