Baoxiang Xu, Zhi Xiong, Jixun Huang, Haicheng Yu. Research on method of improving magnetic field adaptability of high-precision IFOG[J]. Infrared and Laser Engineering, 2021, 50(4): 20200239
- Infrared and Laser Engineering
- Vol. 50, Issue 4, 20200239 (2021)
Fig. 1. Schematic diagram of twisting of fiber
Fig. 2. Shielding diagram of the geomagnetic field
Fig. 3. Shielding equivalent circuit diagram of the geomagnetic field
Fig. 4. Relationship between the distance of the axial connection gap and the attenuation of the strength of internal magnetic field
Fig. 5. Diagrammatic cross-section of the fiber coils in three different states
Fig. 6. Bias (Y -axis) of the fiber coil in different magnetic fields. (a) Fiber coil is in state 1; (b) Fiber coil is in state 2; (c) Fiber coil is in state 3
Fig. 7. Bias of the IFOG in different temperatures. (a) Fiber coil is in state 2; (b) Fiber coil is in state 3
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Table 1. Magnetic field sensitivity of the fiber coil
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Table 2. Magnetic field sensitivities of the coil in different states
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Table 3. Bias stability of the IFOG in the temperature of −40−60 ℃
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