High-authority telescoping actuators with single-crystal piezoelectric materials

Carl C.M. Wu; David Lewis III; Seung Eek Eagle Park

doi:10.1117/12.388172

12 June 2000 High-authority telescoping actuators with single-crystal piezoelectric materials

Carl C.M. Wu, David Lewis III, Seung Eek Eagle Park

Proceedings Volume 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies; (2000) https://doi.org/10.1117/12.388172
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

The displacement output of the telescoping actuators, as developed in the NRL, depend on the material properties. Recently developed relaxor ferroelectric materials, with compositions near the morphotropic phase boundary and in single crystal forms, show high strain output capability and high coupling coefficients. These materials, when design into devices, would provide high performance, in terms of displacement output, and high transduction efficiency. We have utilized one of these single crystal materials, namely, lead zinc niobate-lead titanate, PZN-PT, for the construction of the NRL telescoping actuators. The evaluation of the piezoelectric performance of these single crystal-based telescoping actuators showed much higher displacement outputs than that for the ones previously made with polycrystalline PZT ceramics.

Citation Download Citation

Carl C.M. Wu, David Lewis III, and Seung Eek Eagle Park "High-authority telescoping actuators with single-crystal piezoelectric materials", Proc. SPIE 3991, Smart Structures and Materials 2000: Industrial and Commercial Applications of Smart Structures Technologies, (12 June 2000); https://doi.org/10.1117/12.388172

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