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Analysis for the thermal performance of a modified quadrupolar fiber coil

机译：改性四极光纤线圈的热性能分析

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摘要

Among many factors contributing to fiber optic gyroscope performance, the quality of the fiber coil is one of the most important parts of it. This paper focuses on the disadvantage of cross-layer leap and sensitivity to outside temperature gradient of the present standard quadrupolar (QAD) fiber coil. The paper focuses on reducing the temperature gradient and improving the winding quality of the fiber coil to modify the original standard QAD winding pattern using methods of buffer layers and layer-by-layer leap. The buffer fiber is wound to the inner and outer sides of the fiber coil to reduce the temperature gradient of effective fiber; the layer-by-layer leap is used in place of the original cross-layer leap, and it may reduce bending and stresses variation when fiber leaping. Also, the fibers are arranged orderly to improve the fiber coil winding quality. In addition to building the mathematical model for fiber coil, the simulation and experiment are performed to verify that the improved QAD fiber coils have better thermal performance, and it helps to reduce thermal-induced drift error of a fiber optic gyroscope and improves its precision.
机译：在影响光纤陀螺仪性能的众多因素中，光纤线圈的质量是其最重要的部分之一。本文着眼于现有标准四极（QAD）光纤线圈跨层跳跃和对外部温度梯度敏感的缺点。本文着重于降低温度梯度和改善光纤线圈的缠绕质量，以使用缓冲层和逐层跳跃的方法来修改原始的标准QAD缠绕模式。缓冲光纤缠绕在光纤线圈的内侧和外侧，以减小有效光纤的温度梯度。使用逐层跳变代替原来的跨层跳变，可以减少弯曲时的弯曲和应力跳变。而且，纤维被有序地布置以改善纤维线圈的缠绕质量。除了建立光纤线圈的数学模型之外，还进行了仿真和实验，以验证改进的QAD光纤线圈具有更好的热性能，并有助于减少光纤陀螺仪的热引起的漂移误差并提高其精度。

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