Computer optimization of electromagnetic acoustic transducers

M. Kaltenbacher, R. Lerch, H. Landes, K. Ettinger, Bernhard R. Tittmann

Research output: Contribution to journalConference article

23 Scopus citations

Abstract

Electromagnetic acoustic transducers (EMATs) are well known devices that are commercially available. Their advantage is that they do not require a coupling medium and/or contact to the part being inspected; the disadvantage is their low transduction efficiency. In order to optimize their efficiency, the EMATs are best customized to their particular application with special attention to the material properties and geometry of the part to be inspected. Here we report - apparently for the first time - on numerical simulation of electromagnetic acoustic transduction for both the transmitting and receiving case. The emphasis in this paper is on guided wave generation and reception in thin plates. We have adapted the finite element/boundary element program entitled CAPA to computer simulate the electromagnetic acoustic transduction process.

Original languageEnglish (US)
Pages (from-to)1029-1034
Number of pages6
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
StatePublished - Dec 1 1998
EventProceedings of the 1998 International Ultrasonics Symposium - Sendai, Miyagi, Jpn
Duration: Oct 5 1998Oct 8 1998

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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    Kaltenbacher, M., Lerch, R., Landes, H., Ettinger, K., & Tittmann, B. R. (1998). Computer optimization of electromagnetic acoustic transducers. Proceedings of the IEEE Ultrasonics Symposium, 2, 1029-1034.