Temperature gradient measurements based on a long fiber Bragg grating and time-domain analysis

被引：0
|
作者：
Lavinia Ricchiuti, Amelia [1 ]
Barrera, David [1 ]
Sales, Salvador [1 ]
Nonaka, Koji [2 ]
机构：
[1] Univ Politecn Valencia, ITEAM Res Inst, Camino Vera S-N, E-46022 Valencia, Spain
[2] Kochi Univ Technol, Kami City, Kochi 7828502, Japan
来源：
2014 IEEE SENSORS | 2014年
关键词：
Fiber Bragg gratings; fiber optics sensors; temperature gradient sensors;
D O I：
暂无
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 photonic temperature sensor based on a 10 cm-long fiber Bragg grating (FBG) is presented and experimentally validated. The system is based on the measurement of the central frequency distribution of the grating based on time-frequency domain analysis. A short optical pulse is coupled into the FBG and the back-reflected pulse is scanned by means of an oscilloscope. A spatial resolution of 1 mm, given by half the input pulse duration, is achieved. The sensor proposed is based on a simply configuration and presents a sensing range of 10 cm, which could be further enhanced by fabricating a longer grating.
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页数：3
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