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

Chen, Y., Vidakovic, M., Fabian, M., Swift, M., Brun, L., Sun, T. & Grattan, K. T. V. (2017). A temperature compensated fibre Bragg grating (FBG)-based sensor system for condition monitoring of electrified railway pantograph. Proceedings of SPIE - The International Society for Optical Engineering, 10323, 103236T. doi: 10.1117/12.2263998

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Abstract

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 infjected 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 °C to 55 °C. The tests were repeated several times and the sensor system has shown its temperatureindependence, 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.

Item Type: Article
Additional Information: Chen, Y., Vidakovic, M., Fabian, M., Swift, M., Brun, L., Sun, T. & Grattan, K. T. V. A temperature compensated fibre Bragg grating (FBG)-based sensor system for condition monitoring of electrified railway pantograph. Proceedings of SPIE - The International Society for Optical Engineering, 10323, 103236T, (2017). Copyright SPIE (2017) Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. http://dx.doi.org/10.1117/12.2263998
Uncontrolled Keywords: Fibre Bragg Grating (FBG) Sensors, railway pantograph, condition monitoring, electrified pantograph
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/18182

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