Ultrasonic imaging using laser generation and piezoelectric air- coupled detection

Wright, WMD and Hutchins, D.A. and Hayward, Gordon and Gachagan, Anthony (1996) Ultrasonic imaging using laser generation and piezoelectric air- coupled detection. Ultrasonics, 34 (2-5). pp. 405-409. ISSN 0041-624X

Abstract

A non-contact ultrasonic system using a pulsed laser source and a wideband 1-3 connectivity PZT/epoxy composite transducer as a receiver has been used to produce images of defects in a variety of materials. Using both time and frequency information, through transmission images have been formed of delaminations and machined defects in both carbon fibre reinforced polymer (CFRP) and pultruded glass-fibre reinforced composites. Lamb waves have also been used to reconstruct tomographic images using a filtered back projection algorithm, for defects in thin plates of CFRP and Perspex.

ORCID iDs

Gachagan, Anthony ORCID: https://orcid.org/0000-0002-9728-4120

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• Item metadata

  Item type:	Article
  ID code:	47456
  Dates:	Date Event June 1996 Published
  Keywords:	composites, imaging of defects, piezoelectric air-coupled transducers, ultrasonic imaging, laser generation, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering Technology and Innovation Centre > Sensors and Asset Management
  Depositing user:	Pure Administrator
  Date deposited:	11 Apr 2014 10:50
  Last modified:	20 Jan 2021 21:10
  URI:	https://strathprints.strath.ac.uk/id/eprint/47456