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Noise sensor based on a fiber Bragg grating and a Piezo‐electric transducer
Author(s) -
Cheng ChinHsing,
Lai LungHui,
Liu WenFung
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25844
Subject(s) - fiber bragg grating , materials science , transducer , noise (video) , bar (unit) , wavelength , optics , fiber optic sensor , microwave , optical fiber , sensitivity (control systems) , voltage , optoelectronics , fiber , acoustics , electrical engineering , engineering , electronic engineering , physics , telecommunications , computer science , artificial intelligence , meteorology , image (mathematics) , composite material
This article demonstrates an optical fiber sensor using fiber Bragg grating (FBG) and a Piezo‐electrical transducer (PZT) to measure noise.Mounting an FBG on a PZT bar, a dynamic strain simulator was constructed. The voltage produced by noise level applied on PZT was converted to the dynamic variation of FBG Bragg wavelength. The experiments showed that the sensitivity of center‐wavelength variations is 0.0129 nm/dB for noise measurement between 85.3 and 105.2 dB. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:958–961, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25844