Hybrid Fiber-Optic/Electrical Measurement System for Characterization of Railway Traffic and Its Effects on a Short Span Bridge

The characterization of traffic effects on a short span railway bridge in Northern Portugal with a new hybrid platform that allows the simultaneous assessment of signals generated by a sensing network composed of both electrical and fiber Bragg grating-based sensors was demonstrated. A commercial fi...

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Veröffentlicht in:	IEEE sensors journal 2008-07, Vol.8 (7), p.1243-1249
Hauptverfasser:	da Costa Marques Pimentel, R.M., Beirao Barbosa, M.C., Costa, N.M.S., Ribeiro, D.R.F., de Almeida Ferreira, L.A., Araujo, F.M.M., Calcada, R.A.B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Bridges Character generation Electric variables measurement Fiber Bragg gratings Fiber optics Fibers Hybrid power systems measurement units Optical fiber sensors Optical fibers Rail transportation railway bridge Sensor phenomena and characterization Sensors Signal generators Structural panels Telecommunication traffic Traffic engineering Traffic flow Trains weight-in-motion
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Beschreibung
Zusammenfassung:	The characterization of traffic effects on a short span railway bridge in Northern Portugal with a new hybrid platform that allows the simultaneous assessment of signals generated by a sensing network composed of both electrical and fiber Bragg grating-based sensors was demonstrated. A commercial fiber-optic-based train characterization system using a bridge weight-in-motion algorithm was also developed and tested. By using only three fiber Bragg grating sensors the system allows on-motion determination of train speed and weight distribution.
ISSN:	1530-437X 1558-1748
DOI:	10.1109/JSEN.2008.926519