Drive voltage dependence of electromechanical resonance in PLZT piezoelectric ceramics

Kenji Uchino, Hiroyasu Negishi, Terukiyo Hirose

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Drive voltage dependence of electromechanical resonance has been investigated in PLZT piezoelectric ceramics. With increasing the ac drive voltage, some electromechanical parameters change remarkably: the resonance frequency fmdecreases, the anti-resonance frequency fndoes not shift, the mechanical quality factor Qmdecreases drastically, and the electromechanical coupling factor krincreases. On the contrary, these parameters do not change significantly with changing the dc bias voltage, keeping the ac voltage amplitude. The changes in the parameters can be computer-simulated theoretically by introducing non-linear capacitive and resisitive terms into an electrical equivalent circuit.

Original languageEnglish (US)
Pages (from-to)47-49
Number of pages3
JournalJapanese Journal of Applied Physics
Volume28
Issue numberS2
DOIs
StatePublished - Jan 1 1989

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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