Title :
Hybrid Fiber-Optic/Electrical Measurement System for Characterization of Railway Traffic and Its Effects on a Short Span Bridge
Author :
Pimentel, Ricardo Miguel da Costa Marques ; Barbosa, Maria Cristina Beirão ; Costa, Nuno Manuel Silva ; Ribeiro, Diogo Rodrigo Ferreira ; Ferreira, Luís Alberto de Almeida ; Araujo, F.M.M. ; Calçada, Rui Artur Bártolo
Author_Institution :
Dept. of Civil Eng., Univ. of Porto, Porto
fDate :
7/1/2008 12:00:00 AM
Abstract :
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.
Keywords :
Bragg gratings; bridges (structures); condition monitoring; electric sensing devices; fibre optic sensors; rail traffic; railway engineering; vehicle dynamics; Northern Portugal; bridge weight-in-motion algorithm; fiber Bragg grating sensors; hybrid fiber-optic-electrical measurement system; on-motion determination; railway traffic characterization; short span railway bridge; signal generation; train speed determination; weight distribution; Bridges; Character generation; Electric variables measurement; Hybrid power systems; Optical fiber sensors; Rail transportation; Sensor phenomena and characterization; Signal generators; Structural panels; Telecommunication traffic; Fiber Bragg gratings; measurement units; railway bridge; sensors; weight-in-motion;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2008.926519
