Packaging Effects on Fiber Bragg Grating Sensor Performance 1)

In this paper, the effects of packaging material and structure of fiber Bragg grating sensor performance are investigated. The effects of thermal expansion coefficient of different embedding materials on the temperature sensitivities of the FBG sensors are studied both theoretically and experimentally with good agreement, which provides a means for selection of FBG packaging material to achieve desired temperature sensitivity. We also demonstrate a 4-point bending structured FBG lateral force sensor that measures up to 242N force with well-preserved reflection spectrum, whereas for 3-point bending structure, multiple-peaks start to occur when applied force reaches 72N.

[1]  Akihiko Sakamoto,et al.  Temperature sensitivity of Ge-B-SiO(2) waveguide Bragg gratings on a crystallized glass substrate. , 2002, Optics letters.

[2]  A. Kersey,et al.  Multiplexed fiber Bragg grating strain-sensor system with a fiber Fabry - Perot wavelength filter. , 1993, Optics letters.

[3]  Maurice Whelan,et al.  Embedded fibre Bragg grating sensors in advanced composite materials , 2001 .

[4]  Michael A. Davis,et al.  Fiber grating sensors , 1997 .

[5]  Byoungho Lee,et al.  Simultaneous Measurement of Temperature and Strain Using Two Fiber Bragg Gratings Embedded in a Glass Tube , 1997 .

[6]  Lei Xu,et al.  Simultaneous strain and temperature measurements with fiber Bragg grating written in novel Hi-Bi optical fiber , 2004 .

[7]  R O Claus,et al.  Simultaneous strain and temperature measurement with long-period gratings. , 1997, Optics letters.

[8]  J. L. Cruz,et al.  Temperature-independent strain sensor using a chirped Bragg grating in a tapered optical fibre , 1995 .

[9]  D. Jackson,et al.  Simple multiplexing scheme for a fiber-optic grating sensor network. , 1993 .

[10]  C. Trono,et al.  Curved elastic beam with opposed fiber-Bragg gratings for measurement of large displacements with temperature compensation , 2005, IEEE Sensors Journal.

[11]  Ralph P. Tatam,et al.  Simultaneous independent temperature and strain measurement using in-fibre Bragg grating sensors , 1996 .

[12]  John P. Dakin,et al.  Discrimination between strain and temperature effects using dual-wavelength fibre grating sensors , 1994 .