Guided acoustic wave method for characterization of medical ultrasound transducers

Rui Zhang, Mingxi Wan, Wenwu Cao

Research output: Contribution to journalConference articlepeer-review

Abstract

A guided acoustic wave technique for nondestructive evaluation (NDE) of the medical ultrasound transducers is presented. A revised reflection coefficient measurement technique is used to obtain the dispersion curves of the Lamb waves by finding the local minimum of the broad band reflection spectrum. A set of specimens with controlled interface conditions between the matching layer and the piezoelectric layer are tested. The results of experiment show there is strong relation between the position of the turning point in the lowest order mode dispersion curve and bond quality of transducers.

Original languageEnglish (US)
Pages (from-to)1816-1817
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume4
StatePublished - Dec 1 1998
EventProceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) - Hong Kong, China
Duration: Oct 29 1998Nov 1 1998

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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