Evaluation of the mechanical quality factor under high power conditions in piezoelectric ceramics from electrical power

H. N. Shekhani, Kenji Uchino

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The main methods used to measure the mechanical quality factor in piezoelectric ceramics under high power resonance conditions are the electrical impedance method and the transient method. These methods are limited in their ability to provide relevant data from an application perspective because of the conditions under which the measurements must occur. In this research, a unique approach for characterizing the mechanical quality factor in piezoelectric materials has been developed. This method allows for the calculation of the quality factor from data at a single frequency, which is not possible with other methods. This technique has been applied to a hard PZT material for vibration conditions ranging from antiresonance to resonance at a vibration velocity of 100. mm/s RMS. Results from the quality factor measurement from impedance data and from the new method have a deviation of <2% at resonance, proving the validity of the new electrical power method.

Original languageEnglish (US)
Pages (from-to)541-544
Number of pages4
JournalJournal of the European Ceramic Society
Volume35
Issue number2
DOIs
StatePublished - Feb 1 2015

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Piezoelectric ceramics
Vibrations (mechanical)
Acoustic impedance
Piezoelectric materials

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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Evaluation of the mechanical quality factor under high power conditions in piezoelectric ceramics from electrical power. / Shekhani, H. N.; Uchino, Kenji.

In: Journal of the European Ceramic Society, Vol. 35, No. 2, 01.02.2015, p. 541-544.

Research output: Contribution to journalArticle

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