Low-cost fiber Bragg grating-based static and dynamic strain system for structural monitoring

Daniele Tosi, Massimo Olivero, Guido Perrone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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 languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7098
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event8th International Conference on Vibration Measurements by Laser Techniques: Advances and Applications - Ancona, Italy
Duration: Jun 18 2008Jun 20 2008

Other

Other8th International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
CountryItaly
CityAncona
Period6/18/086/20/08

Fingerprint

Fiber Bragg gratings
Bragg gratings
Wavelength
fibers
Monitoring
interrogation
Optical sensors
Adaptive filters
Temperature sensors
Photodiodes
Telecommunication
Data structures
Costs
Signal processing
gratings
Detectors
Hardware
adaptive filters
Lasers
Sensors

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

Tosi, D., Olivero, M., & Perrone, G. (2008). Low-cost fiber Bragg grating-based static and dynamic strain system for structural monitoring. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7098). [70981G] https://doi.org/10.1117/12.803186

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 proceedingConference contribution

Tosi, D, Olivero, M & Perrone, G 2008, Low-cost fiber Bragg grating-based static and dynamic strain system for structural monitoring. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7098, 70981G, 8th International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, Ancona, Italy, 6/18/08. https://doi.org/10.1117/12.803186
Tosi D, Olivero M, Perrone G. Low-cost fiber Bragg grating-based static and dynamic strain system for structural monitoring. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7098. 2008. 70981G https://doi.org/10.1117/12.803186
Tosi, Daniele ; Olivero, Massimo ; Perrone, Guido. / Low-cost fiber Bragg grating-based static and dynamic strain system for structural monitoring. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7098 2008.
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