Fiber Bragg grating strain sensor for smart structures

Wei Pan; Weizhong Tang; Wen Zhou

doi:10.1117/12.252182

24 September 1996 Fiber Bragg grating strain sensor for smart structures

Wei Pan, Weizhong Tang, Wen Zhou

Proceedings Volume 2895, Fiber Optic Sensors V; (1996) https://doi.org/10.1117/12.252182
Event: Photonics China '96, 1996, Beijing, China

Abstract

Fiber Bragg grating (FBG) is produced in the core of a germania-doped fiber with a permanent periodic index modulation by specific techniques. Its intrinsic advantages over conventional fiber optic sensors makes FBG sensor an attractive candidate in smart structures. The center wavelength of the grating is sensitive to longitudinal strain. In this paper, we report our studies on FBG strain sensors. After giving a linear relationship between wavelength and strain, we demonstrate our experiments with FBGs to measure strain of a deformed aluminum cantilever by the use of an optical multichannel analyzer (OMA IV).

Citation Download Citation

Wei Pan, Weizhong Tang, and Wen Zhou "Fiber Bragg grating strain sensor for smart structures", Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); https://doi.org/10.1117/12.252182

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