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; T. Triantafillou

doi:10.1109/JSEN.2005.846185

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, T. Triantafillou

Civil Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	510-519
Number of pages	10
Journal	IEEE Sensors Journal
Volume	5
Issue number	3
DOIs	https://doi.org/10.1109/JSEN.2005.846185
State	Published - Jun 2005

Keywords

Bragg grating
Sensor multiplexing
Structural integrity monitoring

ASJC Scopus subject areas

Instrumentation
Electrical and Electronic Engineering

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10.1109/JSEN.2005.846185

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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, 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

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

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

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.",

keywords = "Bragg grating, Sensor multiplexing, Structural integrity monitoring",

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

note = "Funding Information: Manuscript received June 18, 2003; revised June 12, 2004. This work supported in part by the European Union as part of a BRITE/EURam Millennium project on the Monitoring of Large Civil Engineering Structures for Improved Maintenance under Contract BE97-4871 and in part by EPSRC. The associate editor coordinating the review of this paper and approving it for publication was Prof. Julian Gardner.",

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AU - Grattan, K. T.V.

AU - McKinley, B.

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AU - Tynes, B.

AU - Fonjallaz, Y.

AU - Triantafillou, T.

N1 - Funding Information: Manuscript received June 18, 2003; revised June 12, 2004. This work supported in part by the European Union as part of a BRITE/EURam Millennium project on the Monitoring of Large Civil Engineering Structures for Improved Maintenance under Contract BE97-4871 and in part by EPSRC. The associate editor coordinating the review of this paper and approving it for publication was Prof. Julian Gardner.

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

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Keywords

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