A field deployable, multiplexed Bragg grating sensor system used in an extensive highway bridge monitoring evaluation tests

Y. M. Gebremichael, W. Li, B. T. Meggitt, W. J.O. Boyle, K. T.V. Grattan, B. McKinley, L. F. Boswell, K. A. Aarnes, S. E. Aasen, B. Tynes, Y. Fonjallaz, Thanasis Triantafillou

    Research output: Contribution to journalArticle

    Abstract

    A multiplexed optical fiber Bragg grating sensor system with a measurement bandwidth of up to 200 Hz enabling dynamic loading events, e.g., road traffic, to be observed has been designed, installed, and tested over an 18-month period on a 346-m road bridge in Norway, for design verification and structural integrity monitoring purposes. A network of 32 fiber Bragg sensors was surface bonded along with a corresponding set of resistive strain gauges for comparative tests to be made. The wavelength data were calibrated against two thermally stabilized (∼0.15 pm) reference gratings, which rejected common mode noise and provided absolute wavelength scaling. These data provides independent strain and temperature information. Long-term test results showed good linearity and repeatability of < 10 με over the test period with a precision of ±5 με and a resolution of ±1 με. The readings from the FBG sensors were comparable to those from the foil gauge sensors to within ±4 με.

    Original languageEnglish (US)
    Pages (from-to)510-519
    Number of pages10
    JournalIEEE Sensors Journal
    Volume5
    Issue number3
    DOIs
    StatePublished - Jun 1 2005

    Fingerprint

    Highway bridges
    Bragg gratings
    Monitoring
    evaluation
    sensors
    Sensors
    roads
    Wavelength
    Norway
    strain gages
    Structural integrity
    Fiber Bragg gratings
    Strain gages
    wavelengths
    integrity
    Metal foil
    traffic
    Gages
    linearity
    Optical fibers

    Keywords

    • Bragg grating
    • Sensor multiplexing
    • Structural integrity monitoring

    ASJC Scopus subject areas

    • Instrumentation
    • Electrical and Electronic Engineering

    Cite this

    Gebremichael, Y. M., Li, W., Meggitt, B. T., Boyle, W. J. O., Grattan, K. T. V., McKinley, B., ... Triantafillou, T. (2005). A field deployable, multiplexed Bragg grating sensor system used in an extensive highway bridge monitoring evaluation tests. IEEE Sensors Journal, 5(3), 510-519. https://doi.org/10.1109/JSEN.2005.846185

    A field deployable, multiplexed Bragg grating sensor system used in an extensive highway bridge monitoring evaluation tests. / Gebremichael, Y. M.; Li, W.; Meggitt, B. T.; Boyle, W. J.O.; Grattan, K. T.V.; McKinley, B.; Boswell, L. F.; Aarnes, K. A.; Aasen, S. E.; Tynes, B.; Fonjallaz, Y.; Triantafillou, Thanasis.

    In: IEEE Sensors Journal, Vol. 5, No. 3, 01.06.2005, p. 510-519.

    Research output: Contribution to journalArticle

    Gebremichael, YM, Li, W, Meggitt, BT, Boyle, WJO, Grattan, KTV, McKinley, B, Boswell, LF, Aarnes, KA, Aasen, SE, Tynes, B, Fonjallaz, Y & Triantafillou, T 2005, 'A field deployable, multiplexed Bragg grating sensor system used in an extensive highway bridge monitoring evaluation tests', IEEE Sensors Journal, vol. 5, no. 3, pp. 510-519. https://doi.org/10.1109/JSEN.2005.846185
    Gebremichael, Y. M. ; Li, W. ; Meggitt, B. T. ; Boyle, W. J.O. ; Grattan, K. T.V. ; McKinley, B. ; Boswell, L. F. ; Aarnes, K. A. ; Aasen, S. E. ; Tynes, B. ; Fonjallaz, Y. ; Triantafillou, Thanasis. / A field deployable, multiplexed Bragg grating sensor system used in an extensive highway bridge monitoring evaluation tests. In: IEEE Sensors Journal. 2005 ; Vol. 5, No. 3. pp. 510-519.
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