A novel tiny ultrasonic linear motor using the radial mode of a bimorph

Hyun Phill Ko, Sangsig Kim, Sergjus N. Borodinas, Piotr E. Vasiljev, Chong Yun Kang, Seok Jin Yoon

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)


The new-typed tiny ultrasonic motor has been introduced to have compact and simple structure. The linear motion of a new-type linear motor is operated by a principle of inertia displacement. The motor can be realized by the central movement of transducing part, which is the maximum displacement of the up-and-down movement. The transducing parts, using different diameters, 3.0 and 5.0 mm and thickness of 0.1 and 0.2 mm metal disks, were fabricated and the dynamic characteristics of the motors were measured. The motor with piezoelectric ceramic of Ø3 needs higher operating voltage than the motor with the piezoelectric ceramic of Ø5.

Original languageEnglish
Pages (from-to)477-481
Number of pages5
JournalSensors and Actuators, A: Physical
Issue number2
Publication statusPublished - 2006 Jan 10


  • Actuating force
  • Inertia
  • Linear actuator
  • Transducing part
  • Ultrasonic motor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering


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