Abstract
A fiber Bragg grating sensor for simultaneous static and dynamic strain detection is hereby presented. The principle of operation of the interrogator is based on direct intensity detection: a fixed-wavelength laser source is filtered through the sensing element, and the output power is detected with a photodiode. Multiple sensing for matched-wavelength gratings is performed by splitting the source into multiple channels. The exploitation of cheap components for optical telecommunications results in a low-cost hardware solution that matches several budget-constrained applications. The optical sensor is complemented by signal processing techniques (adaptive filters, spectral estimation, data modeling), capable of improving performances of the system without changing the optical layout. The system has been tested both in static interrogation, as a temperature sensor, and as vibration detector in a typical structural monitoring context. The maximum interrogation range is ∼200με, depending on the grating shape, with a resolution
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 7098 |
| DOIs | |
| Publication status | Published - 2008 |
| Externally published | Yes |
| Event | 8th International Conference on Vibration Measurements by Laser Techniques: Advances and Applications - Ancona, Italy Duration: Jun 18 2008 → Jun 20 2008 |
Other
| Other | 8th International Conference on Vibration Measurements by Laser Techniques: Advances and Applications |
|---|---|
| Country | Italy |
| City | Ancona |
| Period | 6/18/08 → 6/20/08 |
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Keywords
- Civil structures and infrastructures
- Fiber Bragg gratings
- Fiber optic sensors
- Low-cost measurement systems
- Nondestructive testing and damage detection
- Optical instrumentation
- Signal processing
- Simultaneously static and dynamic measurement
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Low-cost fiber Bragg grating-based static and dynamic strain system for structural monitoring. / Tosi, Daniele; Olivero, Massimo; Perrone, Guido.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7098 2008. 70981G.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Low-cost fiber Bragg grating-based static and dynamic strain system for structural monitoring
AU - Tosi, Daniele
AU - Olivero, Massimo
AU - Perrone, Guido
PY - 2008
Y1 - 2008
N2 - A fiber Bragg grating sensor for simultaneous static and dynamic strain detection is hereby presented. The principle of operation of the interrogator is based on direct intensity detection: a fixed-wavelength laser source is filtered through the sensing element, and the output power is detected with a photodiode. Multiple sensing for matched-wavelength gratings is performed by splitting the source into multiple channels. The exploitation of cheap components for optical telecommunications results in a low-cost hardware solution that matches several budget-constrained applications. The optical sensor is complemented by signal processing techniques (adaptive filters, spectral estimation, data modeling), capable of improving performances of the system without changing the optical layout. The system has been tested both in static interrogation, as a temperature sensor, and as vibration detector in a typical structural monitoring context. The maximum interrogation range is ∼200με, depending on the grating shape, with a resolution
AB - A fiber Bragg grating sensor for simultaneous static and dynamic strain detection is hereby presented. The principle of operation of the interrogator is based on direct intensity detection: a fixed-wavelength laser source is filtered through the sensing element, and the output power is detected with a photodiode. Multiple sensing for matched-wavelength gratings is performed by splitting the source into multiple channels. The exploitation of cheap components for optical telecommunications results in a low-cost hardware solution that matches several budget-constrained applications. The optical sensor is complemented by signal processing techniques (adaptive filters, spectral estimation, data modeling), capable of improving performances of the system without changing the optical layout. The system has been tested both in static interrogation, as a temperature sensor, and as vibration detector in a typical structural monitoring context. The maximum interrogation range is ∼200με, depending on the grating shape, with a resolution
KW - Civil structures and infrastructures
KW - Fiber Bragg gratings
KW - Fiber optic sensors
KW - Low-cost measurement systems
KW - Nondestructive testing and damage detection
KW - Optical instrumentation
KW - Signal processing
KW - Simultaneously static and dynamic measurement
UR - http://www.scopus.com/inward/record.url?scp=50249119101&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50249119101&partnerID=8YFLogxK
U2 - 10.1117/12.803186
DO - 10.1117/12.803186
M3 - Conference contribution
SN - 9780819473264
VL - 7098
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -