High-efficiency piezoelectric motor combining continuous rotation with precise control over angular positioning

A. E. Glazounov, S. Wang, Q. M. Zhang, C. Kim

    Research output: Contribution to journalArticlepeer-review

    11 Scopus citations

    Abstract

    The letter describes a piezoelectric motor that combines the merits of piezoelectric materials, such as high power density generated at electromechanical resonance, and a precise control of displacement. The motor utilizes a direct coupling mechanism between the stator and rotor, where a clutch drives the rotor via locking it. The direct coupling makes it possible to transmit the whole power generated in the piezoelectric element to the rotor, and thus achieve the high efficiency of the motor. It also allows the combining of two regimes of operation: continuous rotation and a stepwise motion within a 360° interval with a high resolution of angular displacement.

    Original languageEnglish (US)
    Pages (from-to)862-864
    Number of pages3
    JournalApplied Physics Letters
    Volume75
    Issue number6
    DOIs
    StatePublished - Aug 9 1999

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

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