Temperature insensitive measurements of static displacements using a fiber Bragg grating | Zendy

Yinian Zhu | Zendy; Perry Ping Shum | Zendy; Chao Lü | Zendy; M. Lacquet | Zendy; Pieter L. Swart | Zendy; A.A. Chtcherbakov | Zendy; STEPHANUS SPAMMER | Zendy

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Temperature insensitive measurements of static displacements using a fiber Bragg grating

Author(s) -

Yinian Zhu,

Perry Ping Shum,

Chao Lü,

M. Lacquet,

Pieter L. Swart,

A.A. Chtcherbakov,

STEPHANUS 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.

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