TY - GEN
T1 - Fiber Bragg grating microphone system for condition-based maintenance of industrial facilities
AU - Tosi, D.
AU - Olivero, M.
AU - Perrone, G.
AU - Vallan, A.
PY - 2011/6/9
Y1 - 2011/6/9
N2 - This paper presents a multipoint fiber Bragg grating (FBG) sensing system operating as a precision microphone. This instrument aims to become the best performing technology for condition-based maintenance (CBM) of critical elements, like ball bearings and cogwheels, embedded in industrial manufacturing machineries. The system architecture is based on the simple matched-laser principle, leading to a low-cost and high-sensitivity system, operating in time and wavelength multiplexing mode. Then, heavy signal processing is applied, providing an outstanding performance improvement of 59 dB in terms of signal-to-noise ratio. A demonstration of condition-based maintenance operation has been performed using standard models of ball bearing sound spectra. Compared to traditional microphones applied to CBM, the signal processing-powered FBG system provides remarkable advantages in terms of sensitivity and rejection of environment noise, providing an improvement of cost-effectiveness of CBM.
AB - This paper presents a multipoint fiber Bragg grating (FBG) sensing system operating as a precision microphone. This instrument aims to become the best performing technology for condition-based maintenance (CBM) of critical elements, like ball bearings and cogwheels, embedded in industrial manufacturing machineries. The system architecture is based on the simple matched-laser principle, leading to a low-cost and high-sensitivity system, operating in time and wavelength multiplexing mode. Then, heavy signal processing is applied, providing an outstanding performance improvement of 59 dB in terms of signal-to-noise ratio. A demonstration of condition-based maintenance operation has been performed using standard models of ball bearing sound spectra. Compared to traditional microphones applied to CBM, the signal processing-powered FBG system provides remarkable advantages in terms of sensitivity and rejection of environment noise, providing an improvement of cost-effectiveness of CBM.
KW - Fiber Bragg grating (FBG)
KW - condition-based maintenance (CBM)
KW - fiber optic sensors (FOS)
KW - optical microphone
UR - http://www.scopus.com/inward/record.url?scp=79957975150&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79957975150&partnerID=8YFLogxK
U2 - 10.1117/12.884853
DO - 10.1117/12.884853
M3 - Conference contribution
AN - SCOPUS:79957975150
SN - 9780819482464
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 21st International Conference on Optical Fiber Sensors
T2 - 21st International Conference on Optical Fiber Sensors
Y2 - 15 May 2011 through 19 May 2011
ER -