Fig. 1. Schematic of fiber coil expansion

Fig. 2. Temperature distribution of fiber coil. (a) Overall distribution; (b) equivalent semi-infinite thermal diffusion model

Fig. 3. Schematic of temperature change at position d in fiber coil under different diffusion coefficients

Fig. 4. Structural diagram of experimental system

Fig. 5. Experimental photos. (a) System photo; (b) installation photo of turntable with temperature chamber

Fig. 6. Output diagrams of FOG for -25 ℃→-45 ℃→-25 ℃

Fig. 7. Original zero bias and compensated zero bias of gyro for -25 ℃→-45 ℃→-25 ℃

Fig. 8. Relationship between thermal diffusion delay response time and temperature

Fig. 9. Gyroscope output in full-temperature

Fig. 10. Original gyro output and compensated gyro output in full temperature