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 | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 8788 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
| Event | Optical Measurement Systems for Industrial Inspection VIII - Munich, Germany Duration: May 13 2013 → May 16 2013 |
Other
| Other | Optical Measurement Systems for Industrial Inspection VIII |
|---|---|
| Country | Germany |
| City | Munich |
| Period | 5/13/13 → 5/16/13 |
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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
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
High-frequency optical fiber microphone for condition-based maintenance application. / Tosi, Daniele; Olivero, Massimo; Perrone, Guido; Vallan, Alberto.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8788 2013. 87880Z.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - High-frequency optical fiber microphone for condition-based maintenance application
AU - Tosi, Daniele
AU - Olivero, Massimo
AU - Perrone, Guido
AU - Vallan, Alberto
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
KW - Acoustic optical transducer
KW - Condition based maintenance (CBM)
KW - FBG sensor
KW - Fiber Bragg grating (FBG)
KW - Fiber optic sensors (FOS)
KW - Frequency spectrum estimation
KW - Optical microphone
UR - http://www.scopus.com/inward/record.url?scp=84880705848&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84880705848&partnerID=8YFLogxK
U2 - 10.1117/12.2019249
DO - 10.1117/12.2019249
M3 - Conference contribution
AN - SCOPUS:84880705848
SN - 9780819496041
VL - 8788
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -