Theoretically,the effect of the temperature gradient on the fiber optic gyroscope(FOG) can be well suppressed by using the quadrupole winding.In fact,the imperfect structure or winding causing glass coil distortion leads to FOG output rate error when there are temperature changes between FOG housing and the sensor coil spool.This paper shows a relationship between FOG output rate error and temperature change or temperature gradients.A method of compensating the FOG output drift rate error caused by the temp...