Signal processing enhanced fiber vibration sensors

Daniele Tosi, Massimo Olivero, Alberto Vallan, Guido Perrone

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

Abstract

The paper analyzes the feasibility of cost-effective fiber sensors for the measurement of small vibrations, from low to medium-high frequencies, in which the complexity of the measurement is moved from expensive optics to cheap electronics without losing too much performance thanks to signal processing algorithms. Two optical approaches are considered: Bragg gratings in standard telecom fibers, which represent the most common type of commercial fiber sensors, and specifically developed sensors made with plastic optical fibers. In both cases, to keep the overall cost low, vibrations are converted into variations of the light intensity, although this makes the received signal more sensitive to noise. Then, adaptive filters and advanced spectral estimation techniques are used to mitigate noise and improve the sensitivity. Preliminary results have demonstrated that the combined effect of these techniques can yield to a signal-to-noise improvement of about 30 dB, bringing the proposed approaches to the level of the most performing sensors for the measurement of vibrations.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages302-305
Number of pages4
Volume543
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2nd International Conference on Materials and Applications for Sensors and Transducers, IC-MAST 2012 - Budapest, Hungary
Duration: May 24 2012May 28 2012

Publication series

NameKey Engineering Materials
Volume543
ISSN (Print)10139826

Other

Other2nd International Conference on Materials and Applications for Sensors and Transducers, IC-MAST 2012
CountryHungary
CityBudapest
Period5/24/125/28/12

Fingerprint

Signal processing
Fibers
Sensors
Plastic optical fibers
Bragg gratings
Adaptive filters
Costs
Optics
Electronic equipment

Keywords

  • Fiber Bragg grating sensors
  • Plastic optical fibers
  • Signal processing
  • Vibration sensors

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Tosi, D., Olivero, M., Vallan, A., & Perrone, G. (2013). Signal processing enhanced fiber vibration sensors. In Key Engineering Materials (Vol. 543, pp. 302-305). (Key Engineering Materials; Vol. 543). https://doi.org/10.4028/www.scientific.net/KEM.543.302

Signal processing enhanced fiber vibration sensors. / Tosi, Daniele; Olivero, Massimo; Vallan, Alberto; Perrone, Guido.

Key Engineering Materials. Vol. 543 2013. p. 302-305 (Key Engineering Materials; Vol. 543).

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

Tosi, D, Olivero, M, Vallan, A & Perrone, G 2013, Signal processing enhanced fiber vibration sensors. in Key Engineering Materials. vol. 543, Key Engineering Materials, vol. 543, pp. 302-305, 2nd International Conference on Materials and Applications for Sensors and Transducers, IC-MAST 2012, Budapest, Hungary, 5/24/12. https://doi.org/10.4028/www.scientific.net/KEM.543.302
Tosi D, Olivero M, Vallan A, Perrone G. Signal processing enhanced fiber vibration sensors. In Key Engineering Materials. Vol. 543. 2013. p. 302-305. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.543.302
Tosi, Daniele ; Olivero, Massimo ; Vallan, Alberto ; Perrone, Guido. / Signal processing enhanced fiber vibration sensors. Key Engineering Materials. Vol. 543 2013. pp. 302-305 (Key Engineering Materials).
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