Archivio Istituzionale della RicercaA 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.
High-frequency optical fiber microphone for condition-based maintenance application / Daniele, Tosi; Olivero, Massimo; Perrone, Guido; Vallan, Alberto. - STAMPA. - 8788:(2013), pp. 1-10. (Intervento presentato al convegno Optical Metrology tenutosi a Munich (Germany) nel 13-16 June) [10.1117/12.2019249].
High-frequency optical fiber microphone for condition-based maintenance application
OLIVERO, MASSIMO;PERRONE, Guido;VALLAN, Alberto
2013
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.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/11583/2507552
Attenzione
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo