A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Broadband source-based interrogation scheme of fiber bragg grating sensors for structural health monitoring
A low cost interrogation system of fiber Bragg grating sensors was developed for structural health monitoring. The scheme uses two gratings and a directional coupler as sensing point, and it includes self-compensation of temperature effects. The reading equipment consists of a standard photodiode for telecom applications with custom signal-conditioning electronics. The characterization of multiplexed sensors, carried out in real framework conditions, shows that the system can work in a temperature range of -20 C to +40 C, making strain measurements up to at least 320 mu epsilon with an accuracy of about 3% and an acquisition rate of 12 samples/min. Further, a budget evaluation is drawn to asses the feasibility of the authors' interrogation system as a low cost solution to increase the extent of structural health monitoring in funds-limited applications.
Broadband source-based interrogation scheme of fiber bragg grating sensors for structural health monitoring
A low cost interrogation system of fiber Bragg grating sensors was developed for structural health monitoring. The scheme uses two gratings and a directional coupler as sensing point, and it includes self-compensation of temperature effects. The reading equipment consists of a standard photodiode for telecom applications with custom signal-conditioning electronics. The characterization of multiplexed sensors, carried out in real framework conditions, shows that the system can work in a temperature range of -20 C to +40 C, making strain measurements up to at least 320 mu epsilon with an accuracy of about 3% and an acquisition rate of 12 samples/min. Further, a budget evaluation is drawn to asses the feasibility of the authors' interrogation system as a low cost solution to increase the extent of structural health monitoring in funds-limited applications.
Broadband source-based interrogation scheme of fiber bragg grating sensors for structural health monitoring
Breitbandsensorabfrage mit Bragg-Gitter für die Zustandsüberwachung bei Bauwerken
Tosi, Daniele (author) / Olivero, Massimo (author) / Perrone, Guido (author)
2007
6 Seiten, 6 Bilder, 6 Quellen
Conference paper
English
Abfrageeinheit , Beugungsgitter (Optik) , Bragg-Reflexionsbedingung , Breitbandsensor , Brücke (Bauwerk) , faseroptischer Sensor , Gebäude , Hängebrücke , Kanalbündelung , Kompensation (Dehnungsausgleich) , Kosteneinsparung , Methodenvergleich , Sensortechnik , Temperaturkompensation , Zustandsüberwachung
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