High-frequency optical fiber microphone for condition-based maintenance application

Daniele Tosi; Massimo Olivero; Guido Perrone; Alberto Vallan

doi:10.1117/12.2019249

High-frequency optical fiber microphone for condition-based maintenance application

Daniele Tosi, Massimo Olivero, Guido Perrone, Alberto Vallan

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A low-cost optical fiber Bragg grating-based microphone is presented. The sensing system makes use of an intensitybased interrogation approach, with a fixed-wavelength laser source employed as optical source. The optical sensor is complemented by signal processing, consisting of adaptive filters and a Capon power spectral density estimator. System characterization has been carried out, showing maximum sensitivity in the 120-450 Hz range, with 0.45 Hz repeatability on single-tone detection. Application for condition-based maintenance of industrial plants, based on a simulated model, is discussed.

Original language	English
Title of host publication	Optical Measurement Systems for Industrial Inspection VIII
DOIs	https://doi.org/10.1117/12.2019249
Publication status	Published - Aug 1 2013
Externally published	Yes
Event	Optical Measurement Systems for Industrial Inspection VIII - Munich, Germany Duration: May 13 2013 → May 16 2013

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8788
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Optical Measurement Systems for Industrial Inspection VIII
Country	Germany
City	Munich
Period	5/13/13 → 5/16/13

Keywords

Acoustic optical transducer
Condition based maintenance (CBM)
FBG sensor
Fiber Bragg grating (FBG)
Fiber optic sensors (FOS)
Frequency spectrum estimation
Optical microphone

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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High-frequency optical fiber microphone for condition-based maintenance application. / Tosi, Daniele; Olivero, Massimo; Perrone, Guido; Vallan, Alberto.

Optical Measurement Systems for Industrial Inspection VIII. 2013. 87880Z (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8788).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tosi, D, Olivero, M, Perrone, G & Vallan, A 2013, High-frequency optical fiber microphone for condition-based maintenance application. in Optical Measurement Systems for Industrial Inspection VIII., 87880Z, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8788, Optical Measurement Systems for Industrial Inspection VIII, Munich, Germany, 5/13/13. https://doi.org/10.1117/12.2019249

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abstract = "A low-cost optical fiber Bragg grating-based microphone is presented. The sensing system makes use of an intensitybased interrogation approach, with a fixed-wavelength laser source employed as optical source. The optical sensor is complemented by signal processing, consisting of adaptive filters and a Capon power spectral density estimator. System characterization has been carried out, showing maximum sensitivity in the 120-450 Hz range, with 0.45 Hz repeatability on single-tone detection. Application for condition-based maintenance of industrial plants, based on a simulated model, is discussed.",

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