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Proceedings Paper

Distributed transducer shading via spatial gradient electrodes
Author(s): Shawn Edward Burke; Jeanne M. Sullivan
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Paper Abstract

A general means of shading, or spatial gain-weighting, induced-strain distributed transducers is developed using spatially-tailored electrode patterns to facilitate the modally-structured measurement and control of structural components over a wide bandwidth. The electrode patterns consist of an array of parallel rectangular `line' patches of unequal width and spacing. For panels, the pattern is 2D. A numerical optimization procedure is described for selecting the number, width, and pattern of these electrodes given a specification of desired modal coupling over a bandwidth of interest. The design method may be used to develop electrode patterns for large-area piezopolymer transducers for ASAC sensing, or for designing piezoceramic chip actuator arrays. Beam and plate examples are presented.

Paper Details

Date Published: 8 May 1995
PDF: 11 pages
Proc. SPIE 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems, (8 May 1995); doi: 10.1117/12.208308
Show Author Affiliations
Shawn Edward Burke, Boston Univ. (United States)
Jeanne M. Sullivan, Air Force Phillips Lab. (United States)

Published in SPIE Proceedings Vol. 2443:
Smart Structures and Materials 1995: Smart Structures and Integrated Systems
Inderjit Chopra, Editor(s)

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