Acoustic phase micrographs in mesoscale materials characterization

W. Ngwa, W. Luo, Tribikram Kundu, W. Grill

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

Abstract

Acoustic techniques are widely employed in health monitoring and nondestructive evaluation of materials. Phase micrographs obtained by phase-sensitive acoustic techniques often contain useful information complementary to the information acquirable from amplitude micrographs alone. Most of this information remains relatively unexploited due to the difficulties encountered in unwrapping and processing of the raw phase data. In this work, a review of the derivable information from the phase images of a scanning acoustic microscope with phase contrast (PSAM) is presented. Different perspectives and insights on sample structural and biological mesocale systems are discussed, predicated on phase information obtained by simulations and three-dimensional imaging.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsT. Kundu
Pages27-35
Number of pages9
Volume5768
DOIs
Publication statusPublished - 2005
EventHealth Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems IV - San Diego, CA, United States
Duration: Mar 7 2005Mar 9 2005

Other

OtherHealth Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems IV
CountryUnited States
CitySan Diego, CA
Period3/7/053/9/05

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Keywords

  • Acoustic phase micrographs
  • Mesoscale systems
  • Phase contrast
  • Phase information
  • Phase-sensitive acoustic microscopy
  • PSAM

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ngwa, W., Luo, W., Kundu, T., & Grill, W. (2005). Acoustic phase micrographs in mesoscale materials characterization. In T. Kundu (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5768, pp. 27-35). [04] https://doi.org/10.1117/12.598053