Long-period fiber grating sensor interrogation with single strain modulated FBG and harmonic analysis

Guilherme Sampaio,Felipe Oliveira Barino,Alexandre Bessa dos Santos

Optical Fiber Technology（2022）

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摘要

•Single edge filter LPFG sensor interrogation.•Well stablished FBG modulation technique to obtain signal related to LPFG resonance.•Data-driven approach to process frequency domain signal with simple model.•∼5 times more precise than the traditional edge-filtering interrogation method.•∼5 times more accurate than the traditional edge-filtering interrogation method.

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关键词

Fiber optical sensors,Long-period fiber grating,Interrogation technique,Fiber Bragg grating,Harmonic analysis

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