Techniques of Fiber Bragg Grating Sensor and Their Application
Abstract
As a novel sensor, fiber Bragg gratings (FBGs) have broad applicability by their excellent characteristics such as compactness, large multiplexing capacity, and corrosion resistance. However, the ability to acquire high-frequency signals is still limited in traditional demodulation technology. In this paper, the sensing principle of FBG sensors was briefly introduced first. Then, we reviewed the status of research and applications of FBG sensors. Aiming at the practical applications in infrastructures, the techniques of FBG encapsulation techniques are developed. And their applications in the structural health monitoring of bridges are conducted. Finally, we analyzed the problems encountered in engineering applications and gave a general review on the development of interrogation methods of FBG sensor.References
G. Meltz, W.W. Morey, W.H. Glenn. Formation of Bragg gratings in optical fibers by a transverse holographic method (J), Opt Lett. 1989; 14(15): 823–7p.
W.W. Morey, G. Meltz, W.H. Glenn. Fiber optic Bragg grating
sensors, SPIE. 1989; 1169: 98–107p.
Y.J. Rao. Recent progress in applications of in fiber Bragg grating
sensors, Opt Lasers Eng. 1999; 31: 297–324p.
C. Wan, W. Hong, J. Liu, et al.Bridge assessment and health
monitoring with distributed longgauge FBG sensors, Int J Dis Sens
Netw. 2013; 9(6): 1–10p.
Y. Mizutani, R.M. Groves. Multifunctional measurement using a
single FBG sensor, Exp Mech. 2011;51(9): 1489–98p.
H. Tsuda, J. Lee, Y. Guan. Fatigue crack propagation monitoring of
stainless steel using fiber Bragg grating ultrasound sensors, Smart
Mater Struct. 2006; 15(5): 1429–37p.
Y. Zhao, Y. Liao. Discrimination methods and demodulation
techniques for fiber Bragg grating sensors, Opt Lasers Eng. 2004;
(1): 1–18p.
D. Tosi. Advanced interrogation of fiber-optic Bragg grating and FabryPerot sensors with KLT analysis, Sensors. 2015; 15(11): 27470–92p.
G. Meltz, W.W. Morey, W.H.Glenn. For mation of Bragg gratings
in optical fibers by transverse holographic method, Opt Lett. 1989;
: 823–5p.
K.O. Hill. Bragg grating fabricated in monomode photosensitive optical fiber by UV exposure through a phase mask, Appl Phys Lett. 1993;62(10): 1035–7p.
D.S. Li, L. Ren, H.N. Li, G.B. Song.Structural health monitoring of a tall building during construction with fiber Bragg grating sensors, Int J Distr Sensor Netw. 2012; 8(3):1146–9p.
W. Zou, Z. He, K. Hotate. Demonstration of Brillouin distributed discrimination of strain and temperature using a polarization-maintaining optical fiber, IEEE Photon Technol Lett. 2010; 22(8): 526–8p
