Butterfly-shaped ultra slim piezoelectric ultrasonic linear motor

Won Hee Lee, Chong-Yun Kang, Dong Soo Paik, Byeong Kwon Ju, Seok Jin Yoon

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A new piezoelectric ultrasonic linear motor, shaped 'Butterfly' wings, has been developed for use in thin electronic products, such as cellular phones and PDAs. The butterfly piezoelectric transducer with a volume of 9 mm × 8 mm × 1 mm is composed of an elastic plate which includes a tip for energy transfer, two protrusions, and two piezoelectric ceramics. The ultra slim butterfly motor with a thickness of ∼1 mm could be achieved by positioning the layered piezoelectric transducer and a linear guide in parallel. The manufactured motor based on FEM analysis was successfully driven at the resonance frequency range that combines the longitudinal and transverse vibration modes. The maximum velocity of 88 mm/s was achieved at a driving frequency close to the pure vibration modes such as the longitudinal or transverse modes. In opposite, the maximum thrust force of 162 g was obtained at a middle frequency between two vibration modes.

Original languageEnglish
Pages (from-to)127-130
Number of pages4
JournalSensors and Actuators, A: Physical
Volume168
Issue number1
DOIs
Publication statusPublished - 2011 Jul 1

Fingerprint

Piezoelectric transducers
Linear motors
vibration mode
ultrasonics
piezoelectric transducers
Ultrasonics
Piezoelectric ceramics
Personal digital assistants
Energy transfer
elastic plates
transverse oscillation
piezoelectric ceramics
Finite element method
wings
thrust
positioning
frequency ranges
energy transfer
vibration
products

Keywords

  • Elliptical motion
  • Longitudinal and transverse modes
  • Piezoelectric ceramics
  • Ultrasonic linear motor

ASJC Scopus subject areas

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

Cite this

Butterfly-shaped ultra slim piezoelectric ultrasonic linear motor. / Lee, Won Hee; Kang, Chong-Yun; Paik, Dong Soo; Ju, Byeong Kwon; Yoon, Seok Jin.

In: Sensors and Actuators, A: Physical, Vol. 168, No. 1, 01.07.2011, p. 127-130.

Research output: Contribution to journalArticle

Lee, Won Hee ; Kang, Chong-Yun ; Paik, Dong Soo ; Ju, Byeong Kwon ; Yoon, Seok Jin. / Butterfly-shaped ultra slim piezoelectric ultrasonic linear motor. In: Sensors and Actuators, A: Physical. 2011 ; Vol. 168, No. 1. pp. 127-130.
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