Single-mode fibre optic Bragg grating sensing on the base of birefringence in surface-mounting and embedding applications

被引：25
作者：
Lee, Jung-Ryul [1 ]
Tsuda, Hiroshi
Koo, Bon-Yong
机构：
[1] Natl Inst Adv Ind Sci & Technol, AIST Tsukuba Cent 2, Struct Hlth Monitoring Grp, Res Inst Instrumentat Frontier, Tsukuba, Ibaraki 3058568, Japan
[2] Hanjing Heavy Ind & Construct Co Ltd, Pusan 606796, South Korea
来源：
OPTICS AND LASER TECHNOLOGY | 2007年 / 39卷 / 01期
关键词：
induced birefringence; fibre Bragg grating; acousto-ultrasonic sensor; composite material;
D O I：
10.1016/j.optlastec.2005.04.006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Birefringence effects in the two typical installation techniques of fibre Bragg grating(FBG) sensor are investigated: surface-mounting and embedding configurations. When the FBG is bonded on a host material, the sensitivity loss in ultrasonic measurement caused by glue-induced low-birefringence is first reported. Next, the transverse stress-induced high birefringence when the FBG is embedded into a fabric composite laminate is measured as 3.6 x 10(-4). Such induced-birefringence effects are experimentally analysed in mechanical applications. Simple and effective solutions with respect to the respective installation configurations for removing the birefringence effect are proposed and the obtained zero-birefringence cases are compared with the birefringent cases. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：157 / 164
页数：8
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