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

B. De Pauw; A. Lamberti; S. Vanlanduit; K. Van Tichelen; T. Geernaert; F. Berghmans

doi:10.1117/12.2059504

2 June 2014 Signal-to-noise ratio evaluation with draw tower fibre Bragg gratings (DTGs) for dynamic strain sensing at elevated temperatures and corrosive environment

B. De Pauw, A. Lamberti, S. Vanlanduit, K. Van Tichelen, T. Geernaert, F. Berghmans

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91577D (2014) https://doi.org/10.1117/12.2059504
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

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_C) for up to 700 hours.

Citation Download Citation

B. De Pauw, A. Lamberti, S. Vanlanduit, K. Van Tichelen, T. Geernaert, and F. Berghmans "Signal-to-noise ratio evaluation with draw tower fibre Bragg gratings (DTGs) for dynamic strain sensing at elevated temperatures and corrosive environment", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91577D (2 June 2014); https://doi.org/10.1117/12.2059504

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