Temperature and strain insensitive bending measurements with D-type fibre Bragg gratings

被引:57
|
作者
Araújo, FM
Ferreira, LA
Santos, JL
Farahi, F
机构
[1] INESC, Unidade Optoelect & Sistemas Elect, Oporto, Portugal
[2] Univ Porto, Fac Ciencias, Dept Fis, P-4150 Oporto, Portugal
[3] Univ N Carolina, Dept Phys, Charlotte, NC 28223 USA
关键词
curvature; bend; fibre optic sensors; fibre Bragg gratings; composite materials;
D O I
10.1088/0957-0233/12/7/314
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present a new sensor configuration based on the intrinsic bend sensitivity of Bragg gratings written in D-type fibres. This sensor can be embedded in any layer of a composite material to evaluate curvature in a way independent of axial strain and temperature. It can also be used to measure other parameters such as acceleration, angle and acoustic pressure.
引用
收藏
页码:829 / 833
页数:5
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