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首页> 外文会议>Symposium gyro technology 2011 : Inertial sensors and systems 2011 >Error signal formation in FOGs through thermal and elastoop-tical environmental influences on the sensing coil
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Error signal formation in FOGs through thermal and elastoop-tical environmental influences on the sensing coil

机译：由于热和弹性环境对传感线圈的影响，FOG中的误差信号形成

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摘要

Fiber Optic Gyroscopes (FOGs) are highly precise sensors for measuring angular rotation rates. For more than three decades they have been used in navigation, positioning and stabilization systems. During the same time they have of course been optimized with respect to their optical behavior, sensitivity to electric and magnetic fields and other environmental influences. Two practically important (and strongly neglected) influences are temperature changes and mechanical vibration. Notable advancements in this area were Shupe's analysis of thermal influences on the fiber coil of FOGs and the proposal of different winding patterns. Shupe argued that temperature changes act on the fiber by inducing locally varying index changes and thermal expansion. There is, however, another important aspect that has been overseen: thermal expansion of coil components also lead to stresses in the coil and thus to fiber deformations. This article shall explain the two mechanisms and show how to predict measurement errors in FOGs with the help of finite element simulations.
机译：光纤陀螺仪（FOG）是用于测量角旋转速率的高精度传感器。三十多年来，它们已用于导航，定位和稳定系统。同时，它们在光学性能，对电场和磁场的敏感性以及其他环境影响方面当然得到了优化。温度变化和机械振动是两个实际上非常重要（且被忽略）的影响。该领域的显着进步是Shupe分析了对FOG光纤线圈的热影响，并提出了不同的绕线方式。 Shupe认为温度变化是通过引起局部变化的折射率变化和热膨胀作用在纤维上的。然而，还有一个重要的方面已受到监督：线圈组件的热膨胀也会导致线圈中产生应力，从而导致纤维变形。本文将解释这两种机制，并展示如何借助有限元模拟来预测FOG中的测量误差。

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