Title :
Real-time measurement of static strain using fiber Bragg gratings with optical frequency domain reflectometry
Author :
Shinoda, Y. ; Arai, T. ; Miyata, D. ; Higo, T.
Author_Institution :
Coll. of Sci. & Technol., Nihon Univ., Tokyo, Japan
Abstract :
We have constructed a real-time measurement system that reduces the measurement period by half that of the existing system by reducing the sweep period of the tunable laser by half. In this paper, we report on the construction of a system that can measure the reflected wavelengths of multi-point FBGs every 2 s - the repeat period of tunable laser sweeping - and on the real-time measurement of static strain.
Keywords :
Bragg gratings; fibre optic sensors; measurement by laser beam; reflectometry; strain measurement; fiber Bragg gratings; multipoint FBG; optical frequency domain reflectometry; static strain real-time measurement system; tunable laser; Bragg gratings; Optical fibers; Optical interferometry; Optical reflection; Optical variables measurement; Wavelength measurement; OFDR; fiber Bragg grating; strain measurement; structural health monitoring;
Conference_Titel :
SICE Annual Conference (SICE), 2011 Proceedings of
Conference_Location :
Tokyo
Print_ISBN :
978-1-4577-0714-8
