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.

引用

页数：3

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