Share Email Print
cover

Proceedings Paper

Active piezoelectric diaphragms
Author(s): Robert G. Bryant; Robert T. Effinger; Isaiah Aranda; Ben M. Copeland; Ed W. Covington
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Several active piezoelectric diaphragms were fabricated by placing unelectroded piezoelectric disks between copper clad films patterned with Inter-Circulating Electrodes (ICE). When a voltage potential is applied to the electrodes, the result is radially distributed electric field that mechanically strains the piezo-ceramic along the Z-axis, rather than the expected in-plane direction. Unlike other out of plane piezoelectric actuators, which are benders, these Radial Field Diaphragms strain concentrically yet afford high displacements while maintaining a constant circumference. This paper covers the fabrication and characterization of these diaphragms as a function of poling field strength, ceramic diameter and line spacing, as well as the surface topography, the resulting strain field and displacement as a function of applied voltage ranging from DC to 10 Hz.

Paper Details

Date Published: 11 July 2002
PDF: 12 pages
Proc. SPIE 4699, Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics, (11 July 2002); doi: 10.1117/12.474988
Show Author Affiliations
Robert G. Bryant, NASA Langley Research Ctr. (United States)
Robert T. Effinger, Texas A&M Univ. (United States)
Isaiah Aranda, Texas A&M Univ. (United States)
Ben M. Copeland, NASA Langley Research Ctr. (United States)
Ed W. Covington, NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 4699:
Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics
Christopher S. Lynch, Editor(s)

© SPIE. Terms of Use
Back to Top