Abstract
In the present work we report on the development of a low cost interrogation system of fiber Bragg grating sensors for structural health monitoring. The developed 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 -20H-40°C, making strain measurements up to at least 320με with an accuracy of ∼3% and an acquisition rate of 12 samples/min. Further, a budget evaluation is drawn to asses the feasibility of our interrogation system as a low cost solution to increase the extent of structural health monitoring in funds-limited applications.
| Original language | English |
|---|---|
| Pages (from-to) | 399-404 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Volume | 347 |
| DOIs | |
| Publication status | Published - 2007 |
| Externally published | Yes |
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Keywords
- Building health monitoring
- Fiber bragg gratings (FBG)
- Fiber optic sensor (FOS)
- Optical fiber transducers
- Strain measurement
- Structural engineering
ASJC Scopus subject areas
- Chemical Engineering (miscellaneous)
- Ceramics and Composites
Cite this
Broadband source-based interrogation scheme of fiber Bragg grating sensors for structural health monitoring. / Tosi, Daniele; Olivero, Massimo; Perrone, Guido.
In: Key Engineering Materials, Vol. 347, 2007, p. 399-404.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Broadband source-based interrogation scheme of fiber Bragg grating sensors for structural health monitoring
AU - Tosi, Daniele
AU - Olivero, Massimo
AU - Perrone, Guido
PY - 2007
Y1 - 2007
N2 - In the present work we report on the development of a low cost interrogation system of fiber Bragg grating sensors for structural health monitoring. The developed 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 -20H-40°C, making strain measurements up to at least 320με with an accuracy of ∼3% and an acquisition rate of 12 samples/min. Further, a budget evaluation is drawn to asses the feasibility of our interrogation system as a low cost solution to increase the extent of structural health monitoring in funds-limited applications.
AB - In the present work we report on the development of a low cost interrogation system of fiber Bragg grating sensors for structural health monitoring. The developed 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 -20H-40°C, making strain measurements up to at least 320με with an accuracy of ∼3% and an acquisition rate of 12 samples/min. Further, a budget evaluation is drawn to asses the feasibility of our interrogation system as a low cost solution to increase the extent of structural health monitoring in funds-limited applications.
KW - Building health monitoring
KW - Fiber bragg gratings (FBG)
KW - Fiber optic sensor (FOS)
KW - Optical fiber transducers
KW - Strain measurement
KW - Structural engineering
UR - http://www.scopus.com/inward/record.url?scp=34250877761&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34250877761&partnerID=8YFLogxK
U2 - 10.4028/0-87849-444-8.399
DO - 10.4028/0-87849-444-8.399
M3 - Article
VL - 347
SP - 399
EP - 404
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
ER -