Improved time response for polymer fibre Bragg grating based humidity sensors

W. Zhang, D.J. Webb, G.-D. Peng

    Research output: Chapter in Book/Published conference outputConference publication

    Abstract

    In this work we experimentally investigate the response time of humidity sensors based on polymer optical fibre (POF) Bragg gratings. By the use of etching with acetone we can control the diameter of POF based on poly (methyl methacrylate) in order to reduce the diffusion time of water into the polymer and hence speed up the relative wavelength change caused by humidity variations. A much improved response time of 11 minutes has been achieved by using a POF FBG with a reduced diameter of 135 microns.
    Original languageEnglish
    Title of host publicationSPIE proceedings
    Place of PublicationBellingham, WA (US)
    PublisherSPIE
    Number of pages4
    ISBN (Print)978-0-8194-8246-4
    DOIs
    Publication statusPublished - 17 May 2011
    Event21st International Conference on Optical Fiber Sensors - Ottawa, ON, Canada
    Duration: 15 May 201119 May 2011
    http://www.ofs21.org/

    Publication series

    NameSPIE Proceedings
    PublisherSPIE
    Volume77533
    ISSN (Print)0277-786X
    ISSN (Electronic)2410-9045

    Conference

    Conference21st International Conference on Optical Fiber Sensors
    Abbreviated titleOFS21
    Country/TerritoryCanada
    CityOttawa, ON
    Period15/05/1119/05/11
    Internet address

    Bibliographical note

    W. Zhang, D. J. Webb and G.-D. Peng, "Improved time response for polymer fibre Bragg grating based humidity sensors", Proc. SPIE 7753, 77533M (2011). 21st International Conference on Optical Fiber Sensors (OFS21), 15-19 May 2011, Ottawa (CA).

    Copyright 2011 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.

    DOI: http://dx.doi.org/10.1117/12.885936

    Keywords

    • response time
    • humidity sensors
    • polymer optical fibre
    • POF
    • Bragg gratings
    • etching
    • acetone
    • poly (methyl methacrylate)
    • diffusion time
    • wavelength change
    • humidity variations

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