Simultaneous measurement of strain and temperature using the first- and second-order diffraction wavelengths of Bragg gratings

被引：69

作者：

Brady, GP ^{[1
]}

Kalli, K ^{[1
]}

Webb, DJ ^{[1
]}

Jackson, DA ^{[1
]}

Reekie, L ^{[1
]}

Archambault, JL ^{[1
]}

机构：

[1] UNIV SOUTHAMPTON,OPTOELECT RES CTR,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND

来源：

IEE PROCEEDINGS-OPTOELECTRONICS | 1997年 / 144卷 / 03期

关键词：

Bragg grating; fibre sensing; strain effects; temperature effects;

D O I：

10.1049/ip-opt:19971373

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 method of discriminating between temperature and strain effects in fibre sensing using a conventionally written, in-fibre grating is presented. The technique wavelength information from the first and second diffraction orders of the grating element to determine the wavelength dependent strain and temperature coefficients, from which independent temperature and strain measurements can be made. The authors present results that validate this matrix inversion technique and quantify the strain and temperature errors which can arise for a given uncertainty in the measurement of the reflected wavelength.

引用

页码：156 / 161

页数：6

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