A new method of determining the equivalent circuit parameters of piezoelectric resonators and analysis of the piezoelectric loading effect

Author

Kim, J.S. ; Choi, K. ; Yu, I.

Author_Institution

Dept. of Phys., Seoul Nat. Univ., South Korea

Volume

40

Issue

4

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

424

Lastpage

426

Abstract

An inductive method of piezoelectric resonance detection is applied to the determination of equivalent circuit parameters of piezoelectric resonators. Using this method one can measure the resonance frequency and mechanical Q-factor of a resonator directly as well as their dependences on the electrical impedance which is connected to the resonator. From the equivalent circuit analysis the changes in resonance frequency and Q-factor due to the piezoelectric loading effects are determined. Measurements on two typical commercial piezoelectric resonators, an AT-cut quartz crystal and a PZT ceramic resonator, are in good agreement with the analysis.<>

Keywords

Q-factor; crystal resonators; equivalent circuits; AT-cut quartz crystal; PZT ceramic resonator; PbZrO3TiO3; SiO/sub 2/; electrical impedance; equivalent circuit parameters; inductive method; mechanical Q-factor; piezoelectric loading effect; piezoelectric resonators; resonance frequency; Ceramics; Circuit analysis; Electric variables measurement; Equivalent circuits; Frequency measurement; Impedance measurement; Mechanical variables measurement; Q factor; Resonance; Resonant frequency;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.251294

Filename

251294