Torsional inchworm ultrasonic piezomotor combining continuous rotation with precise control over angular positions and high torque output

Qiming Zhang, A. Glazounov

    Research output: Contribution to journalConference article

    Abstract

    The paper 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, which is based on the shear piezoelectric response, 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 combining 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)661-665
    Number of pages5
    JournalProceedings of the IEEE Ultrasonics Symposium
    Volume1
    StatePublished - Dec 1 1999
    Event1999 IEEE Ultrasonics Symposium - Caesars Tahoe, NV, USA
    Duration: Oct 17 1999Oct 20 1999

    Fingerprint

    piezoelectric motors
    rotors
    torque
    Torque
    Rotors
    ultrasonics
    Ultrasonics
    output
    Piezoelectric motors
    clutches
    Piezoelectric materials
    Clutches
    stators
    Stators
    locking
    radiant flux density
    shear
    intervals
    high resolution

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics

    Cite this

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    abstract = "The paper 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, which is based on the shear piezoelectric response, 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 combining two regimes of operation: continuous rotation and a stepwise motion within a 360° interval with a high resolution of angular displacement.",
    author = "Qiming Zhang and A. Glazounov",
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    N2 - The paper 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, which is based on the shear piezoelectric response, 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 combining two regimes of operation: continuous rotation and a stepwise motion within a 360° interval with a high resolution of angular displacement.

    AB - The paper 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, which is based on the shear piezoelectric response, 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 combining two regimes of operation: continuous rotation and a stepwise motion within a 360° interval with a high resolution of angular displacement.

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