Approximate formulas for a Low-Q electromechanical resonator and their applications to electrostrictive PMN-based ceramics

Yuzuru Tsuchiya, Kenji Uchino, Shoichiro Nomura

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

A new approximate method for calculating the electromechanical coupling factors (kp and k31) related to transverse vibration in piezoelectric ceramics is proposed, which is applicable to a wide range of coupling factors with a considerable mechanical loss. The induced-piezoelectric resonance was measured by the transmission method on PMN-based electrostrictive resonators under an applied bias field. The electromechanical parameters were determined by using the new approximation in the temperature range -100°C to 100°C under fields up to 12×105 V/m. The electrostrictive Q31 coefficient obtained is -5.5×10−3 m4C−2 for PMN, which is in good agreement with that determined by other methods.

Original languageEnglish (US)
Pages (from-to)1841-1847
Number of pages7
JournalJapanese Journal of Applied Physics
Volume20
Issue number10
DOIs
StatePublished - Oct 1981

All Science Journal Classification (ASJC) codes

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

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