Strain sensing of modern composite materials with a spatial wavelength-division multiplexed fiber grating network

被引：39
|
作者：
Rao, YJ [1 ]
Jackson, DA [1 ]
Zhang, L [1 ]
Bennion, I [1 ]
机构：
[1] UNIV ASTON,DEPT ELECT ENGN,PHOTON RES CTR,BIRMINGHAM B4 7ET,W MIDLANDS,ENGLAND
来源：
OPTICS LETTERS | 1996年 / 21卷 / 09期
关键词：
D O I：
10.1364/OL.21.000683
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A spatial/wavelength-division multiplexing topology with combination of a tunable-wavelength filter and an interferometric wavelength scanner is used to interrogate a range of fiber Bragg grating (FBG) strain sensors embedded in modern composite materials. A nine-element FBG sensor system based on this topology is demonstrated for quasi-static strain sensing of a carbon fiber reinforced plastic plate for aerospace applications. Preliminary experimental results show that a strain resolution of similar to 1.8 mu epsilon rms with an similar to 30-Hz bandwidth(similar to 0.32 mu epsilon/root Hz) for quasi-static strain measurement has been achieved. (C) 1996 Optical Society of America
引用
收藏
页码：683 / 685
页数：3
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