Simultaneous independent temperature and strain measurement using in-fibre Bragg grating sensors

被引：276
|
作者：
James, SW
Dockney, ML
Tatam, RP
机构：
[1] Optical Sensors Group, Centre of Mechanical Engineering, Cranfield University, Cranfield, Bedford
来源：
ELECTRONICS LETTERS | 1996年 / 32卷 / 12期
关键词：
gratings in fibres; optical sensors;
D O I：
10.1049/el:19960732
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：
A new technique for the simultaneous, independent measurement of temperature and strain using in-fibre Bragg grating sensors is proposed and demonstrated. Two Bragg gratings with closely spaced centre wavelengths are written either side of a splice between two fibres of different diameter. The gratings show similar temperature sensitivities but different strain responses to an applied stress. Maximum errors of +/-17 mu epsilon and +/-1 degrees are reported over 2500 mu epsilon and 120 degrees C measurement ranges.
引用
收藏
页码：1133 / 1134
页数：2
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