Accurate determination of complex materials coefficients of piezoelectric resonators

Xiao Hong Du, Qing Ming Wang, Kenji Uchino

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

This paper presents a method of accurately determining the complex piezoelectric and elastic coefficients of piezoelectric ceramic resonators from the measurement of the normalized electric admittance, Ȳ, which is electric admittance Y of piezoelectric resonator normalized by the angular frequency ω. The coefficients are derived from the measurements near three special frequency points that correspond to the maximum and the minimum normalized susceptance (B̄) and the maximum normalized conductance (Ḡ). The complex elastic coefficient is determined from the frequencies at these points, and the real and imaginary parts of the piezoelectric coefficient are related to the derivative of the susceptance with respect to the frequency and the asymmetry of the conductance, respectively, near the maximum conductance point. The measurements for some lead zirconate titanate (PZT) based ceramics are used as examples to demonstrate the calculation and experimental procedures and the comparisons with the standard methods.

Original languageEnglish (US)
Pages (from-to)312-320
Number of pages9
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume50
Issue number3
DOIs
StatePublished - Mar 1 2003

Fingerprint

Electric admittance
Resonators
resonators
coefficients
electrical impedance
Piezoelectric ceramics
piezoelectric ceramics
Lead
Derivatives
asymmetry
ceramics

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Cite this

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abstract = "This paper presents a method of accurately determining the complex piezoelectric and elastic coefficients of piezoelectric ceramic resonators from the measurement of the normalized electric admittance, Ȳ, which is electric admittance Y of piezoelectric resonator normalized by the angular frequency ω. The coefficients are derived from the measurements near three special frequency points that correspond to the maximum and the minimum normalized susceptance (B̄) and the maximum normalized conductance (Ḡ). The complex elastic coefficient is determined from the frequencies at these points, and the real and imaginary parts of the piezoelectric coefficient are related to the derivative of the susceptance with respect to the frequency and the asymmetry of the conductance, respectively, near the maximum conductance point. The measurements for some lead zirconate titanate (PZT) based ceramics are used as examples to demonstrate the calculation and experimental procedures and the comparisons with the standard methods.",
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Accurate determination of complex materials coefficients of piezoelectric resonators. / Du, Xiao Hong; Wang, Qing Ming; Uchino, Kenji.

In: IEEE transactions on ultrasonics, ferroelectrics, and frequency control, Vol. 50, No. 3, 01.03.2003, p. 312-320.

Research output: Contribution to journalArticle

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