A temperature compensated fibre Bragg grating (FBG)-based sensor system for condition monitoring of electrified railway pantograph

被引：1

作者：

Chen, Ye ^{[1
]}

Vidakovic, Miodrag ^{[1
]}

Fabian, Matthias ^{[1
]}

Swift, Martin ^{[2
]}

Brun, Lee ^{[2
]}

Sun, Tong ^{[1
]}

Grattan, Kenneth T. V. ^{[1
]}

机构：

[1] City Univ London, Sch Math Comp Sci & Engn, London, England

[2] Brecknell Willis, Millfield TA20 2DA, Chard, England

来源：

2017 25TH INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS (OFS) | 2017年 / 10323卷

基金：

英国工程与自然科学研究理事会;

关键词：

Fibre Bragg Grating (FBG) Sensors; railway pantograph; condition monitoring; electrified pantograph;

D O I：

10.1117/12.2263998

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：

This paper presents the results obtained from fibre Bragg grating (FBG) sensors integrated into a railway current-collecting pantograph for accurate measurement of contact force and contact location when it is subjected to various temperature conditions. The temperature change of the pantograph is simulated, at the industrial laboratory of Brecknell Willis in the UK, by changing the DC current applied to pantograph from 0 to 1500 A. This test is primarily designed to verify the effectiveness of the temperature compensation mechanism built in the FBG sensor design. For this verification, 3 thermocouples co-located with the FBG sensor packages are used to measure the temperature change seen from 25 degrees C to 55 degrees C. The tests were repeated several times and the sensor system has shown its temperature-independence, confirming that the intrinsic cross-sensitivity of FBGs to temperature variation for strain measurement has been fully compensated through the use of this innovative sensor design and data processing.

引用

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