Simultaneous measurement for strain and temperature based on a long-period grating combined with a high-birefringence fiber loop mirror

被引：107

作者：

Frazao, O. ^{[1
]}

Marques, L. M.

Santos, S.

Baptista, J. M.

Santos, J. L.

机构：

[1] INESC, P-4169007 Oporto, Portugal

[2] Inst Super Engn Porto, P-4200072 Oporto, Portugal

[3] Univ Madeira, Dept Matemat & Engn, P-9000390 Funchal 9000390, Portugal

[4] Univ Porto, Dept Fis, P-4169007 Oporto, Portugal

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 21-24期

关键词：

fiber-loop mirror; long-period grating (LPG); optical fiber sensors; strain-temperature discrimination;

D O I：

10.1109/LPT.2006.886139

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work presents an alternative solution for simultaneous measurement of strain and temperature. The sensing head is formed by a long-period fiber grating combined with a high-birefringence fiber loop mirror resulting in a configuration capable of temperature and strain discrimination. These optical devices have opposite sensitivity responses when a variation of temperature and/or strain is applied. Maximum errors of +/- 0.8 degrees C and +/- 21 mu epsilon are reported over 60 degrees C and 700-mu epsilon measurement ranges, respectively.

引用

页码：2407 / 2409

页数：3

共 9 条

[1] Applications of long-period gratings to single and multi-parameter sensing [J].