Phased annular array transducers for ultrasonic guided wave applications

Fei Yan, Cody Borigo, Yue Liang, Jaya P. Koduru, Joseph Lawrence Rose

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Mode and frequency control always plays an important role in ultrasonic guided wave applications. In this paper, theoretical understanding of guided wave excitations of axisymmetric sources on plate structures is established. It is shown that a wave number spectrum can be used to investigate the guided wave excitations of an axisymmetric source. The wave number spectrum is calculated from a Hankel transform of the axial source loading profile. On the basis of the theoretical understanding, phased annular array transducers are developed as a powerful tool for guided wave mode and frequency control. By applying appropriate time delays to phase the multiple elements of an annular array transducer, guided wave mode and frequency tuning can be achieved fully electronically. The phased annular array transducers have been successfully used for various applications. Example applications presented in this paper include phased annular arrays for guided wave beamforming and a novel ultrasonic vibration modal analysis technique for damage detection.

Original languageEnglish (US)
Title of host publicationHealth Monitoring of Structural and Biological Systems 2011
DOIs
StatePublished - May 24 2011
EventHealth Monitoring of Structural and Biological Systems 2011 - San Diego, CA, United States
Duration: Mar 7 2011Mar 10 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7984
ISSN (Print)0277-786X

Other

OtherHealth Monitoring of Structural and Biological Systems 2011
CountryUnited States
CitySan Diego, CA
Period3/7/113/10/11

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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    Yan, F., Borigo, C., Liang, Y., Koduru, J. P., & Rose, J. L. (2011). Phased annular array transducers for ultrasonic guided wave applications. In Health Monitoring of Structural and Biological Systems 2011 [79840S] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7984). https://doi.org/10.1117/12.882099