单光纤光栅波谱展宽温度压力同时区分测量

被引：14

作者：

郭团

乔学光

贾振安

孙安

陈长勇

机构：

[1] 西安石油大学理学院光纤传感重点实验室

来源：

光学学报 | 2004年 / 10期

关键词：

光传感技术; 光纤布拉格光栅; 带宽展宽; 区分测量;

D O I：

暂无

中图分类号：

TP212 [发送器（变换器）、传感器];

学科分类号：

080202 ;

摘要：

报道了利用单光纤布拉格光栅反射波带宽展宽技术实现温度与压力同时区分测量的新方案。通过聚合物材料将光栅粘接于双孔悬臂梁非均匀应变区 ,在压力作用下悬臂梁带动光栅发生非均匀应变 ,使布拉格反射波波长漂移的同时带宽展宽 ,而温度变化仅引起反射波波长漂移。在 2 0～ 10 0℃和 0～ 7.8N的温度和压力测量范围内 ,温度测量精度± 1.1℃ ,压力测量精度± 0 .18N ,布拉格反射波中心波长漂移量和带宽展宽量随温度和压力的变化呈良好的线性关系 ,线性度均高于 99.6 %。多次测量表明 ,此方案的展宽波形稳定 ,重复性好。

引用

页码：1401 / 1405

页数：5

共 9 条

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