A Dicyclic Method for Suppressing the Thermal-Induced Bias Drift of I-FOGs

作者：Ling, Weiwei^*; Li, Xuyou; Xu, Zhenlong; Wei, Yanhui

来源：IEEE Photonics Technology Letters, 2016, 28(3): 272-275.

DOI：10.1109/LPT.2015.2494623

• Rate error
• interferometric fiber optic gyroscopes (I-FOGs)
• finite element method (FEM)
• dicyclic method

We propose a novel winding idea of dicyclic fiber coils for suppressing the thermal-induced bias drift error of interferometric fiber optic gyroscopes (I-FOGs). We use the finite-element method to analyze the thermal transient effect of fiber coil, and calculate the simulation values. Results show that the dicyclic method can effectively improve the I-FOGs' temperature performance. Experiments with different temperature change rates between -40 degrees C and 70 degrees C are performed, and the experimental results show excellent agreement with simulation values and it reaches 0.0105 degrees/h range performance. By using this method, the I-FOGs may no longer need a complicated winding.

• 出版日期2016-2-1
• 单位哈尔滨工程大学