Kinematic rectification in damped single-axis gyros

Abstract

In a single-axis gyro a rotation about the input axis forces the spin axis to rotate about the output axis. The true input axis is oscillating about its nominal position and the gyro sees a varying component of the angular velocity about the nominal spin axis. This may be rectified, thereby causing a drift, if the components of angular velocity along the input and spin axes are correlated. The drift rate is evaluated in terms of the components of angular velocity suffered by the gyro.