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 journalArticlepeer-review

    47 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

    Keywords

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

    Fingerprint

    Dive into the research topics of 'Butterfly-shaped ultra slim piezoelectric ultrasonic linear motor'. Together they form a unique fingerprint.

    Cite this