Signal-to-noise ratio evaluation with draw tower fibre Bragg gratings (DTGs) for dynamic strain sensing at elevated temperatures and corrosive environment

被引：1

作者：

De Pauw, B. ^{[1
,2
,3
]}

Lamberti, A. ^{[2
]}

Vanlanduit, S. ^{[2
]}

Van Tichelen, K. ^{[3
]}

Geernaert, T. ^{[1
]}

Berghmans, F. ^{[1
]}

机构：

[1] VUB, Brussel Photon Team B Phot, Brussels, Belgium

[2] VUB, Dept Mech Engn, Brussels, Belgium

[3] Belgian Nucl Res Ctr, Mol, Belgium

来源：

23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2014年 / 9157卷

关键词：

FBG lifetime; DTG; nuclear reactor components; strain sensing; SNR; peak detection;

D O I：

10.1117/12.2059504

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Measuring strain at the surface of a structure can help to estimate the dynamical properties of the structure under test. Such a structure can be a fuel assembly of a nuclear reactor consisting of fuel pins. In this paper we demonstrate a method to integrate draw tower gratings (DTGs) in a fuel pin and we subject this pin to conditions close to those encountered in a heavy liquid metal (HLM) reactor. More specifically, we report on the performance of DTGs used as a strain sensor when immersed in HLM during thermal cycles (up to 300 degrees C) for up to 700 hours.

引用

页数：4

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