Investigating the suitability of the matched fiber Bragg grating approach for guided wave based structural health monitoring

Rohan Soman; Farzam Omidi Moaf; Piotr Fiborek; Pawel Kudela; Marzena Kurpińska

doi:10.1016/j.measurement.2024.115935

Investigating the suitability of the matched fiber Bragg grating approach for guided wave based structural health monitoring

Abstract

Fiber Bragg grating (FBG) sensors are thought to be ideal sensors for structural health monitoring (SHM). Amplitude based techniques such as matched filters and the edge-filtering have been proposed to fulfill the high sampling rates necessary for guided waves (GW) sensing. The current research for the first time shows the inherent robustness the matched filter technique provides to the sensing system. The matched system is realized through a FBG deployed on a low cost micrometer screw gauge which allows flexibility in matching the reflected wavelengths of the FBGs. Based on the results it is shown that, in the remote configuration the matched FBG approach is robust under changing temperature conditions. This concept has been shown analytically and experimentally. Furthermore, the approach is then extended for multiplexing of the sensors and the deployed system is used for detecting and localizing damage in the plate.

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Authors (5)

Rohan Soman
- Institute of Fluid Flow Machinery, Polish Academy of Sciences
Farzam Omidi Moaf
Piotr Fiborek
- Institute of Fluid Flow Machinery, Polish Academy of Sciences
Pawel Kudela
- Institute of Fluid Flow Machinery, Polish Academy of Sciences
Marzena Kurpińska dr inż.

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Keywords

GUIDED WAVES (GW) FIBER BRAGG GRATING (FBG) SENSORS DAMAGE DETECTION MATCHED FBG APPROACH TEMPERATURE STUDY MULTIPLEXING

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

MEASUREMENT no. 242, pages 115935 - -,
ISSN: 0263-2241

Language:

English

Publication year:

2025

Bibliographic description:

Soman R., Omidi Moaf F., Fiborek P., Kudela P., Kurpińska M.: Investigating the suitability of the matched fiber Bragg grating approach for guided wave based structural health monitoring// MEASUREMENT -,iss. 242,part D (2024), s.115935--

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