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An FBG-Based Impact Event Detection System for Structural Health Monitoring

Auteur(s):


Médium: article de revue
Langue(s): anglais
Publié dans: Advances in Civil Engineering, , v. 2010
Page(s): 1-8
DOI: 10.1155/2010/253274
Abstrait:

Some structures are vulnerable to localized internal damages incurred by impact of small objects. An impact monitoring system using fiber Bragg grating (FBG) sensors has been established. Its ability to detect very low to medium energy impacts has been demonstrated on an aluminum plate and a 22 m long wind turbine blade. Previous analysis of this technique showed that the accuracy by which an impact position can be located is limited by equipment noises and angular insensitivity of the FBG. By employing two intensity demodulation schemes with different demodulation sensitivities and ranges, we try to differentiate the relative importance of the above limiting effects. Based on the results, directions for further improvement on impact source locating accuracy will be discussed and the implication of applying such systems on large-scale structures will be examined.

Copyright: © 2010 C. S. Shin et al.
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 3.0 (CC-BY 3.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée.

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    sur cette fiche
  • Reference-ID
    10177034
  • Publié(e) le:
    07.12.2018
  • Modifié(e) le:
    02.06.2021
 
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