Liu Jianning, Bian Xiaoyun, Weng Jun, Jiao Mingxing. Temperature Segment Frequency Stabilization Control Technology in Prisms Laser Gyroscope[J]. Chinese Journal of Lasers, 2020, 47(6): 601005
- Chinese Journal of Lasers
- Vol. 47, Issue 6, 601005 (2020)
Fig. 1. Simplified structure of TRPLG
Fig. 2. Simplified structure diagram of heater
Fig. 3. Meshing division of finite element model
Fig. 4. Temperature distributions of ring resonator and frequency stabilization gas channel with temperature from -25 ℃ to 70 ℃. (a) Isogram; (b) curves
Fig. 5. Temperature distributions of ring resonator and frequency stabilization gas channel with temperature from -70 ℃ to 25 ℃. (a) Isogram; (b) curves
Fig. 6. Fitting curves of temperature of frequency stabilization gas center and time. (a) 25 ℃→70 ℃; (b) 70 ℃→25 ℃
Fig. 7. Test device diagram of variable temperature experiment
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Table 1. Thermodynamic parameters of materials involved in finite element analysis
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Table 2. Fitting curve coefficients of temperature difference between inner and outer of cavity and time
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Table 3. Comparison of gyroscope accuracy under different frequency stabilization control methods
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