Polymer Optical Fibre Bragg Grating Humidity Sensor at 100ºC

Getinet Woyessa, Andrea Fasano, Christos Markos, Henrik K. Rasmussen, Ole Bang

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    We have demonstrated a polymer optical fibre Bragg grating humidity sensor that can be operated up to 100ºC. The sensor has been fabricated from a polycarbonate (PC) microstructured polymer optical fibre Bragg grating (mPOFBG). PC mPOFBG gave a relative humidity (RH) sensitivity of 6.95±0.83 pm/% RH in the range 10-90% RH at 100ºC and a temperature sensitivity of 25.94±0.47 pm/ºC in the range 20 - 100 ºC at 90% RH. Despite PC mPOFBGs shows smaller humidity sensitivity compared to PMMA mPOFBGs, they can be used to sense humidity beyond the operating temperature limit of PMMA mPOFBGs.
    Original languageEnglish
    Title of host publicationProceedings of the 25th International Conference on Plastic Optical Fibers 2016
    Number of pages279
    PublisherUniversity of Aston in Birmingham
    Publication date2016
    ISBN (Electronic)9781854494085
    Publication statusPublished - 2016
    Event25th International Conference on Plastic Optical Fibres - Aston University, Birmingham, United Kingdom
    Duration: 13 Sept 201615 Sept 2016
    Conference number: 25

    Conference

    Conference25th International Conference on Plastic Optical Fibres
    Number25
    Location Aston University
    Country/TerritoryUnited Kingdom
    CityBirmingham
    Period13/09/201615/09/2016
    SponsorAston University

    Keywords

    • Polymer optical fibre
    • Fibre Bragg grating
    • Fibre optic sensor
    • Humidity sensor
    • Annealing

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