A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics

Stephen A. Wilson, Philip J. Rayner, John Gore, Adrian R. Bowles, Richard C. McBride

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A comparative study has been made to explore the potential benefits of newly available single-crystal ferroelectric materials when used in a practical device, in this case an ultrasonic micro-motor. This type of micro-motor exhibits exceptional power-to-weight characteristics, which could be exploited beneficially, for example, in unmanned air-vehicle (UAV) systems. The operating principles of a range of commercial and experimental motor designs were evaluated objectively in order to identify areas of performance that can potentially be enhanced using PMN-PT single-crystal piezoelectric ceramics. Based on this analysis a practical motor design was selected for construction and experimentation. Detailed numerical analysis indicated that a motor constructed from single crystal PMN-PT could be expected to provide an improvement in motor stall-torque by up to a factor of 2.8 and a no-load speed improvement by a factor of 1.5 when compared with motors based on standard polycrystalline lead-zirconate-titanate (PZT) ceramics. In practice single-crystal versions of the motor were found to produce double the power output of their polycrystalline counterparts. Overall efficiency was found to be improved two-fold. There were significant discrepancies between the numerical predictions for the single-crystal devices and their measured performance, whereas the polycrystalline devices were found to perform closely in line with predictions.

    Original languageEnglish
    Title of host publicationIndustrial and Commercial Applications af Smart Structures Technologies 2008
    EditorsL. Porter Davis, Benjamin K. Henderson, M. Brett McMickell
    Place of PublicationBellingham
    PublisherSPIE-International Society for Optical Engineering
    ISBN (Print)9780819471161
    DOIs
    Publication statusPublished - 2008
    EventSPIE Smart Structures/NDE 2008: Industrial and Commercial Applications of Smart Structures Technologies II - Town and Country Resort & Convention Center, San Diego, United States
    Duration: 10 Mar 200811 Mar 2008
    http://spie.org/x22926.xml

    Publication series

    NameProceedings of SPIE
    Volume6930

    Conference

    ConferenceSPIE Smart Structures/NDE 2008: Industrial and Commercial Applications of Smart Structures Technologies II
    CountryUnited States
    CitySan Diego
    Period10/03/0811/03/08
    Other15th Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring
    Internet address

    Cite this

    Wilson, S. A., Rayner, P. J., Gore, J., Bowles, A. R., & McBride, R. C. (2008). A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics. In L. P. Davis, B. K. Henderson, & M. B. McMickell (Eds.), Industrial and Commercial Applications af Smart Structures Technologies 2008 [693013] (Proceedings of SPIE; Vol. 6930). Bellingham: SPIE-International Society for Optical Engineering. https://doi.org/10.1117/12.776321
    Wilson, Stephen A. ; Rayner, Philip J. ; Gore, John ; Bowles, Adrian R. ; McBride, Richard C. / A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics. Industrial and Commercial Applications af Smart Structures Technologies 2008. editor / L. Porter Davis ; Benjamin K. Henderson ; M. Brett McMickell. Bellingham : SPIE-International Society for Optical Engineering, 2008. (Proceedings of SPIE).
    @inproceedings{f92b1809ff044f6da996de17b5bf0d86,
    title = "A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics",
    abstract = "A comparative study has been made to explore the potential benefits of newly available single-crystal ferroelectric materials when used in a practical device, in this case an ultrasonic micro-motor. This type of micro-motor exhibits exceptional power-to-weight characteristics, which could be exploited beneficially, for example, in unmanned air-vehicle (UAV) systems. The operating principles of a range of commercial and experimental motor designs were evaluated objectively in order to identify areas of performance that can potentially be enhanced using PMN-PT single-crystal piezoelectric ceramics. Based on this analysis a practical motor design was selected for construction and experimentation. Detailed numerical analysis indicated that a motor constructed from single crystal PMN-PT could be expected to provide an improvement in motor stall-torque by up to a factor of 2.8 and a no-load speed improvement by a factor of 1.5 when compared with motors based on standard polycrystalline lead-zirconate-titanate (PZT) ceramics. In practice single-crystal versions of the motor were found to produce double the power output of their polycrystalline counterparts. Overall efficiency was found to be improved two-fold. There were significant discrepancies between the numerical predictions for the single-crystal devices and their measured performance, whereas the polycrystalline devices were found to perform closely in line with predictions.",
    author = "Wilson, {Stephen A.} and Rayner, {Philip J.} and John Gore and Bowles, {Adrian R.} and McBride, {Richard C.}",
    year = "2008",
    doi = "10.1117/12.776321",
    language = "English",
    isbn = "9780819471161",
    series = "Proceedings of SPIE",
    publisher = "SPIE-International Society for Optical Engineering",
    editor = "Davis, {L. Porter} and Henderson, {Benjamin K.} and McMickell, {M. Brett}",
    booktitle = "Industrial and Commercial Applications af Smart Structures Technologies 2008",

    }

    Wilson, SA, Rayner, PJ, Gore, J, Bowles, AR & McBride, RC 2008, A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics. in LP Davis, BK Henderson & MB McMickell (eds), Industrial and Commercial Applications af Smart Structures Technologies 2008., 693013, Proceedings of SPIE, vol. 6930, SPIE-International Society for Optical Engineering, Bellingham, SPIE Smart Structures/NDE 2008: Industrial and Commercial Applications of Smart Structures Technologies II, San Diego, United States, 10/03/08. https://doi.org/10.1117/12.776321

    A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics. / Wilson, Stephen A.; Rayner, Philip J.; Gore, John; Bowles, Adrian R.; McBride, Richard C.

    Industrial and Commercial Applications af Smart Structures Technologies 2008. ed. / L. Porter Davis; Benjamin K. Henderson; M. Brett McMickell. Bellingham : SPIE-International Society for Optical Engineering, 2008. 693013 (Proceedings of SPIE; Vol. 6930).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    TY - GEN

    T1 - A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics

    AU - Wilson, Stephen A.

    AU - Rayner, Philip J.

    AU - Gore, John

    AU - Bowles, Adrian R.

    AU - McBride, Richard C.

    PY - 2008

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    N2 - A comparative study has been made to explore the potential benefits of newly available single-crystal ferroelectric materials when used in a practical device, in this case an ultrasonic micro-motor. This type of micro-motor exhibits exceptional power-to-weight characteristics, which could be exploited beneficially, for example, in unmanned air-vehicle (UAV) systems. The operating principles of a range of commercial and experimental motor designs were evaluated objectively in order to identify areas of performance that can potentially be enhanced using PMN-PT single-crystal piezoelectric ceramics. Based on this analysis a practical motor design was selected for construction and experimentation. Detailed numerical analysis indicated that a motor constructed from single crystal PMN-PT could be expected to provide an improvement in motor stall-torque by up to a factor of 2.8 and a no-load speed improvement by a factor of 1.5 when compared with motors based on standard polycrystalline lead-zirconate-titanate (PZT) ceramics. In practice single-crystal versions of the motor were found to produce double the power output of their polycrystalline counterparts. Overall efficiency was found to be improved two-fold. There were significant discrepancies between the numerical predictions for the single-crystal devices and their measured performance, whereas the polycrystalline devices were found to perform closely in line with predictions.

    AB - A comparative study has been made to explore the potential benefits of newly available single-crystal ferroelectric materials when used in a practical device, in this case an ultrasonic micro-motor. This type of micro-motor exhibits exceptional power-to-weight characteristics, which could be exploited beneficially, for example, in unmanned air-vehicle (UAV) systems. The operating principles of a range of commercial and experimental motor designs were evaluated objectively in order to identify areas of performance that can potentially be enhanced using PMN-PT single-crystal piezoelectric ceramics. Based on this analysis a practical motor design was selected for construction and experimentation. Detailed numerical analysis indicated that a motor constructed from single crystal PMN-PT could be expected to provide an improvement in motor stall-torque by up to a factor of 2.8 and a no-load speed improvement by a factor of 1.5 when compared with motors based on standard polycrystalline lead-zirconate-titanate (PZT) ceramics. In practice single-crystal versions of the motor were found to produce double the power output of their polycrystalline counterparts. Overall efficiency was found to be improved two-fold. There were significant discrepancies between the numerical predictions for the single-crystal devices and their measured performance, whereas the polycrystalline devices were found to perform closely in line with predictions.

    U2 - 10.1117/12.776321

    DO - 10.1117/12.776321

    M3 - Conference contribution

    SN - 9780819471161

    T3 - Proceedings of SPIE

    BT - Industrial and Commercial Applications af Smart Structures Technologies 2008

    A2 - Davis, L. Porter

    A2 - Henderson, Benjamin K.

    A2 - McMickell, M. Brett

    PB - SPIE-International Society for Optical Engineering

    CY - Bellingham

    ER -

    Wilson SA, Rayner PJ, Gore J, Bowles AR, McBride RC. A comparative study of ultrasonic micro-motors based on single crystal PMN-PT and polycrystalline PZT ceramics. In Davis LP, Henderson BK, McMickell MB, editors, Industrial and Commercial Applications af Smart Structures Technologies 2008. Bellingham: SPIE-International Society for Optical Engineering. 2008. 693013. (Proceedings of SPIE). https://doi.org/10.1117/12.776321