Focusing surface wave imaging with flexible 2D array

Shiyuan Zhou, Junqiang Fu, Zhe Li, Chunguang Xu, Dingguo Xiao, Shaohan Wang

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

Abstract

Curved surface is widely exist in key parts of energy and power equipment, such as, turbine blade cylinder block and so on. Cycling loading and harsh working condition of enable fatigue cracks appear on the surface. The crack should be found in time to avoid catastrophic damage to the equipment. A flexible 2D array transducer was developed. 2D Phased Array focusing method (2DPA), Mode-Spatial Double Phased focusing method (MSDPF) and the imaging method using the flexible 2D array probe are studied. Experiments using these focusing and imaging method are carried out. Surface crack image is obtained with both 2DPA and MSDPF focusing method. It have been proved that MSDPF can be more adaptable for curved surface and more calculate efficient than 2DPA.

Original languageEnglish
Title of host publicationNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016
EditorsPeter J. Shull, Andrew L. Gyekenyesi, Tzuyang Yu, H. Felix Wu
PublisherSPIE
ISBN (Electronic)9781510600454
DOIs
Publication statusPublished - 2016
EventNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016 - Las Vegas, United States
Duration: 21 Mar 201624 Mar 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9804
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016
Country/TerritoryUnited States
CityLas Vegas
Period21/03/1624/03/16

Keywords

  • 2D array
  • Curved surface
  • Imaging
  • Phased focusing
  • Surface waves

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