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A method for ultrasonic characterization of density, thickness and velocity of homogeneous coating

  • Y. Zhao
  • , Zhen Yue Ma
  • , Li Lin*
  • , X. M. Li
  • , M. K. Lei
  • *Corresponding author for this work
  • Dalian University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper provides a nondestructive method for determination of the density, thickness and velocity of homogeneous coating from an inversion of experimental ultrasonic reflection coefficient amplitude spectrum (URCAS). The detailed analyses of the inverse algorithm and sensitivity of URCAS to the density, thickness and velocity are presented, and the sensitivity is identified as a basis for selecting the experimental data used in inversion. An example of the method and experimental measurement for comparison was given for an epoxy coating with the thickness of 0.277 mm. The relative errors between the inversion and reference value of the density, thickness and velocity were found to be 0.5 %, 3.97 %, and 0.97 %, respectively.

Original languageEnglish
Title of host publicationAdvanced Material Science and Technology
PublisherTrans Tech Publications Ltd
Pages1217-1220
Number of pages4
ISBN (Print)9783037850497
DOIs
StatePublished - 2011
Externally publishedYes

Publication series

NameMaterials Science Forum
Volume675 677
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Keywords

  • Coating
  • Inverse
  • Reflection coefficient amplitude spectrum
  • Ultrasonic characterization

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