Piezoelectric ultrasonic motors: Overview

Kenji Uchino

Research output: Contribution to journalReview articlepeer-review

485 Scopus citations


This paper reviews recent developments of ultrasonic motors using piezoelectric resonant vibrations. Following the historical background, ultrasonic motors using standing and traveling waves are introduced. Driving principles and motor characteristics are explained in comparison with conventional electromagnetic motors. After a brief discussion on speed and thrust calculation, finally, reliability issues of ultrasonic motors are described.

Original languageEnglish (US)
Pages (from-to)273-285
Number of pages13
JournalSmart Materials and Structures
Issue number3
StatePublished - Jun 1998

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering


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