A high sensitive fiber Bragg grating strain sensor with automatic temperature compensation

被引：0
|
作者：
李阔 [1 ]
周振安 [1 ]
机构：
[1] Institute of Crustal Dynamics,China Earthquake Administration
来源：
Chinese Optics Letters | 2009年 / 7卷 / 03期
关键词：
FBG; A high sensitive fiber Bragg grating strain sensor with automatic temperature compensation; high;
D O I：
暂无
中图分类号：
TP212.14 [];
学科分类号：
0803 ;
摘要：
A high sensitive fiber Bragg grating(FBG) strain sensor with automatic temperature compensation is demonstrated.FBG is axially linked with a stick and their free ends are fixed to the measured object.When the measured strain changes,the stick does not change in length,but the FBG does.When the temperature changes,the stick changes in length to pull the FBG to realize temperature compensation.In experiments,1.45 times strain sensitivity of bare FBG with temperature compensation of less than 0.1 nm Bragg wavelength drift over 100 °C shift is achieved.
引用
收藏
页码：191 / 193
页数：3
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