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

Ben De Pauw, A. Lamberti, Steve Vanlanduit, Katrien Van Tichelen, Thomas Geernaert, Francis Berghmans

    Research outputpeer-review


    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.
    Original languageEnglish
    Title of host publication23rd International Conference on Optical Fibre Sensors
    Subtitle of host publicationPROCEEDINGS OF SPIE
    StatePublished - 22 May 2014
    Event23rd International Conference on Optical Fibre Sensors - Santander
    Duration: 2 Jun 20146 Jun 2014


    Conference23rd International Conference on Optical Fibre Sensors

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