Introduction to piezoelectric actuators: Research misconceptions and rectifications

Kenji Uchino

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


The field of piezoelectric actuators is really an interdisciplinary area, to which applied physicists and materials, electrical and mechanical engineers primarily converge. Because of the narrow knowledge of junior researchers, they occasionally publish misleading information, some sort of misconceptions, reflected in the delay of innovative developments of the next generation. This paper reviews the top 10 of these misconceptions, which are primarily related to the understanding of ionic displacement and strain, efficiency, the energy transmission coefficient, the constraint dependency of piezo-material properties, mechanical impedance matching, the piezoelectric damping mechanism, resonance and antiresonance, best-selling devices, and system design principles.

Original languageEnglish (US)
Article numberSG0803
JournalJapanese Journal of Applied Physics
Issue numberSG
StatePublished - 2019

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


Dive into the research topics of 'Introduction to piezoelectric actuators: Research misconceptions and rectifications'. Together they form a unique fingerprint.

Cite this