High power characteristics at antiresonance frequency of piezoelectric transducers

Seiji Hirose, Manabu Aoyagi, Yoshiro Tomikawa, Sadayuki Takahashi, Kenji Uchino

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

First in this paper, the loss in piezoelectric ceramics is described. Antiresonance is the vibration under constant D (electric displacement) driving, and therefore electro-mechanical loss becomes almost zero: resonance is the vibration under constant E (electric field) driving, and then there exists large electro-mechanical loss. The relations between antiresonance and the constant D driving are explained. Next, a method of measuring the high-power characteristics is described for antiresonance frequency. Experimental results for the quality factor and temperature rise and other equivalent constants are then shown as high-power characteristics obtained at the antiresonance frequency. Finally, some considerations for the stable-state driving of the high-power piezoelectric devices are described.

Original languageEnglish (US)
Pages (from-to)213-217
Number of pages5
JournalUltrasonics
Volume34
Issue number2-5
DOIs
StatePublished - Jan 1 1996

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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