Efficiency characterization of piezoelectrics for power

J. H. Cho, J. C. Raupp, P. D. Hayenga, R. F. Richards, D. F. Bahr, C. D. Richards, M. J. Anderson

Research output: Contribution to journalConference articlepeer-review


The efficiency of energy conversion by piezoelectric devices depends upon the quality factor Q, and electromechanical coupling coefficient k2. Efficiency, Q, and k2 were measured for a piezoelectric cantilever and piezoelectric stack, and compared to a model of the efficiency in terms of Q and k2. The model and experiment agree very well.

Original languageEnglish (US)
Article numberIMECE2004-61739
Pages (from-to)17-22
Number of pages6
JournalAmerican Society of Mechanical Engineers, Advanced Energy Systems Division (Publication) AES
StatePublished - Jan 1 2004
Event2004 ASME International Mechanical Engineering Congress and Exposition, IMECE - Anaheim, CA, United States
Duration: Nov 13 2004Nov 19 2004


  • Efficiency
  • Electromechanical coupling coefficient
  • Piezoelectric power
  • Quality factor


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