Effect of the Principal Axes Angle-Offsets on Fiber-optic Gyroscope Output
对轴误差对光纤陀螺输出的影响

The effect of the principal axes angle-offsets of two splice points between the Y branch and PM fiber coil on the output errors of fiber-optic gyroscope(FOG) was investigated theoretically and experimentally.According to a simplified error model of the optical circuit of FOG,the relation between the phase error of FOG and the principal axes angle-offsets of the main coupling points was derived and emulated.Then using a closed-loop FOG,the variations of the bias and bias stability of FOG when changing the pr...