Simultaneous strain and temperature measurement with long-period gratings

被引:171
|
作者
Bhatia, V
Campbell, D
Claus, RO
Vengsarkar, AM
机构
[1] VIRGINIA POLYTECH INST & STATE UNIV,BRADLEY DEPT ELECT ENGN,FIBER & ELECTROOPT RES CTR,BLACKSBURG,VA 24061
[2] LUCENT TECHNOL,BELL LABS,MURRAY HILL,NJ 07974
关键词
D O I
10.1364/OL.22.000648
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The differential modulation of the attenuation bands in a long-period grating is used for simultaneous sensing of axial strain and temperature. A grating fabricated in a conventional optical fiber is demonstrated for concurrent measurements of strain over a range of 2100 mu epsilon and temperature over a range of 125 degrees C, with maximum errors of 58 mu epsilon and 1 degrees C, respectively. (C) 1997 Optical Society of America.
引用
收藏
页码:648 / 650
页数:3
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