Temperature-independent fiber Bragg grating acceleration sensor

Lan Li; Wenjun Zhou

doi:10.1117/12.840687

28 October 2009 Temperature-independent fiber Bragg grating acceleration sensor

Lan Li, Wenjun Zhou

Proceedings Volume 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors; 751416 (2009) https://doi.org/10.1117/12.840687
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

Abstract

An acceleration sensor based on measurement of the reflection bandwidth of a single fiber Bragg grating (FBG) is presented. The FBG is glued in a slanted direction onto the lateral surface at the center of the beam. Two weights were fixed respectively on the upper and lower surfaces in the middle of the beam to sense the variation of the acceleration in the vertical direction. Preliminary experimental results indicate that when the acceleration was increased, the 3-dB bandwidth of the FBG responded linearly from zero to 8 g, with very low temperature dependence. The measurement sensitivity and resolution are 0.4 nm/g and 0.05 g, respectively.

Citation Download Citation

Lan Li and Wenjun Zhou "Temperature-independent fiber Bragg grating acceleration sensor", Proc. SPIE 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors, 751416 (28 October 2009); https://doi.org/10.1117/12.840687

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