Micro piezoelectric ultrasonic motors

K. Uchino, S. Cagatay, B. Koc, S. Dong, P. Bouchilloux, M. Strauss

Research output: Contribution to journalArticlepeer-review

82 Scopus citations


This paper reviews recent developments of micro ultrasonic rotary motors using piezoelectric resonant vibrations. Following the historical background, four ultrasonic motors recently developed at Penn State University are introduced; windmill, PZT tube, metal tube, and shear-type motors. Driving principles and motor characteristics are described in comparison with the conventional ultrasonic motors. Motors with 1.5 mm in diameter and 0.8 mN·m in torque have been actually developed.

Original languageEnglish (US)
Pages (from-to)393-401
Number of pages9
JournalJournal of Electroceramics
Issue number1-3
StatePublished - Jul 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Mechanics of Materials
  • Materials Chemistry
  • Electrical and Electronic Engineering


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