Study of reliability of fibre Bragg grating fibre optic strain sensors for field-test applications

F. Surre, T. Sun, K.T.V. Grattan, R.H. Scott, P. Banerji, P.A.M. Basheer

    Research output: Contribution to journalArticle

    27 Citations (Scopus)
    429 Downloads (Pure)

    Abstract

    In this paper, the reliability and thus the suitability of optical fibre strain sensors for surface strain measurement in concrete structures was investigated. Two different configurations of optical strain sensors were used each having different mountings making them suitable for different uses in various structures. Due to the very limited time available to install the sensors and take result, commercially packaged sensors were used. In the tests carried out each sensor was mounted onto a concrete beam which was then subjected to a range of known and calibrated loadings. The performance of the optical strain sensors thus evaluated was compared with the results of conventional techniques. This comparison allows for selecting the best performing combination of sensor/mounting, i.e. long-gauge sensor with mounts bolted to threaded rods glued into the concrete for use in future work in a field test where a limited time window was available for installation, testing and post-test demounting.
    Original languageEnglish
    Pages (from-to)8-16
    Number of pages9
    JournalSensors and Actuators A: Physical
    Volume185
    DOIs
    Publication statusPublished - 01 Oct 2012

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials
    • Metals and Alloys
    • Surfaces, Coatings and Films
    • Instrumentation

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