Open AccessTemperature insensitive measurements of static displacements using a fiber Bragg grating
Author(s) -
Yinian Zhu,
Perry Ping Shum,
Chao Lu,
M. B. Lacquet,
Pieter L. Swart,
Anatoli A. Chtcherbakov,
Stephanus J. Spammer
Publication year - 2003
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.001918
Subject(s) - fiber bragg grating , optics , materials science , phosfos , long period fiber grating , demodulation , grating , cantilever , blazed grating , signal (programming language) , fiber optic sensor , wavelength , optical fiber , diffraction grating , graded index fiber , physics , channel (broadcasting) , computer science , composite material , electrical engineering , engineering , programming language
We report a chirped fiber Bragg grating transducer for the measurement of acceleration, in which a cantilever beam and fiber Bragg grating are used. The cantilever induces strain on the grating resulting in a Bragg grating wavelength modification that is subsequently detected. The output signal is insensitive to temperature variations and for a temperature change from -20 degrees C to 40 degrees C, the output signal fluctuated less than 5 % without any temperature compensation schemes. Because the accelerometer does not utilize the complex demodulation techniques it is potentially inexpensive. For the experimental system a linear output range of 8 g could be detected.