光纤光栅的温度传感特性是与其实际结构组成相关的.在现有的参考光栅温度补偿方法中,大都没有考虑温度参考光栅的结构影响问题.本文通过力学分析和数学仿真计算对涂覆、套塑光纤光栅的实际温度响应特性进行了研究.推导得出了与光纤结构相关的光栅温度传感特性公式,并首次给出了光纤结构在参考光栅温度补偿法中引入误差的定量分析方法.本研究有助于根据测量结果对被测结构的应变状态进行更为准确的评价,也为实际应用中合理选择温度参考光栅的涂覆层参数提供了有力的理论依据.
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