In situ cross-calibration of in-fibre Bragg Grating and Electrical Resistance Strain Gauges for structural monitoring using an extensometer

S.K.T. Grattan, Susan Taylor, Muhammed Basheer, T. Sun, K.T.V. Grattan

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Special issue on Sensor Systems for Structural Health Monitoring Abstract—This study addresses the direct calibration of optical fiber strain sensors used for structural monitoring and is carried out in situ. The behavior of fiber-Bragg-grating-based sensor systems when attached to metal bars, in a manner representative of their use as reinforcement bars in structures, was examined and their response calibrated. To ensure the validity of the measurements,this was done using an extensometer with a further calibrationagainst the response of electrical resistance strain gauges, often conventionally used, for comparison. The results show a repeatable calibration generating a suitable geometric factor of extension to strain for these sensors, to enable accurate strain data to be obtained when the fiber-optic sensor system is in use in structural monitoring applications.
    Original languageEnglish
    Pages (from-to)1355-1360
    Number of pages6
    JournalIEEE Sensors Journal
    Volume9
    Issue number11
    DOIs
    Publication statusPublished - Nov 2009

    Fingerprint Dive into the research topics of 'In situ cross-calibration of in-fibre Bragg Grating and Electrical Resistance Strain Gauges for structural monitoring using an extensometer'. Together they form a unique fingerprint.

  • Cite this