A 3-D model for analyzing thermal transient effects in fiber gyro coils

Maochun Li; Tiegen Liu; Youwei Zhou; Junfeng Jiang; Lili Hou; Jiajia Wang; X. Steve Yao

doi:10.1117/12.755306

17 January 2008 A 3D model for analyzing thermal transient effects in fiber gyro coils

Maochun Li, Tiegen Liu, Youwei Zhou, Junfeng Jiang, Lili Hou, Jiajia Wang, X. Steve Yao

Proceedings Volume 6830, Advanced Sensor Systems and Applications III; 68300E (2008) https://doi.org/10.1117/12.755306
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

We derive a generalized expression based on a three-dimensional (3-D) model to fully describe the dependence of the nonreciprocity in a fiber coil caused by temperature gradient along the axial, radial, and circumferential directions respectively. We use the finite element analysis method to numerically solve the partial differential equations describing heat transfer in the fiber coil and obtain the rate and angular errors induced by the thermal transient effect with a better accuracy. We show that the 3-D model can describe the thermal transient effects induced by both the symmetrical and asymmetrical temperature gradients, which is not possible using the traditional two-dimensional model. Finally, we validate the ability of the 3-D model for predicting the thermal transient behavior in the fiber coil by comparing numerical and experimental results. The 3-D model proves useful for the development of a testing system capable of characterizing symmetrical and asymmetrical temperature transient effects in the fiber gyro coil.

Citation Download Citation

Maochun Li, Tiegen Liu, Youwei Zhou, Junfeng Jiang, Lili Hou, Jiajia Wang, and X. Steve Yao "A 3D model for analyzing thermal transient effects in fiber gyro coils", Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68300E (17 January 2008); https://doi.org/10.1117/12.755306

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