Comparison of point and integrated fibre optic sensing techniques for ultrasound detection and location of damage

G.J. Thursby, B.L. Sorazu, D. Betz, W. Staszewski, B. Culshaw

Research output: Contribution to conferencePaper

8 Citations (Scopus)

Abstract

In this paper we describe and compare two methods for detecting Lamb waves used for damage detection. One is a polarimetric sensor that integrates the pressure effects of the acoustic wave along its length, whilst the other is the Bragg grating that measures linear strain and is in effect a point sensor. Both sensors are highly directional, which gives benefits in damage signal detection and source location. We demonstrate both the detection and location of damage and discuss the advantages and disadvantages of the two sensors.
Original languageEnglish
Pages287-295
Number of pages9
DOIs
Publication statusPublished - Mar 2004
EventSPIE Conference on Smart Structures and Materials 2004 - San Diego, United States
Duration: 15 Mar 200418 Mar 2004

Conference

ConferenceSPIE Conference on Smart Structures and Materials 2004
CountryUnited States
CitySan Diego
Period15/03/0418/03/04

Keywords

  • damage detection
  • Bragg gratings
  • polarimetry
  • ultrasound
  • fibre optics sensors
  • comparison
  • fibre optic sensing techniques
  • integrated
  • ultrasound detection
  • location
  • damage

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  • Cite this

    Thursby, G. J., Sorazu, B. L., Betz, D., Staszewski, W., & Culshaw, B. (2004). Comparison of point and integrated fibre optic sensing techniques for ultrasound detection and location of damage. 287-295. Paper presented at SPIE Conference on Smart Structures and Materials 2004, San Diego, United States. https://doi.org/10.1117/12.549023