Distributed transducer shading via spatial gradient electrodes

Shawn Edward Burke; Jeanne M. Sullivan

doi:10.1117/12.208308

8 May 1995 Distributed transducer shading via spatial gradient electrodes

Shawn Edward Burke, Jeanne M. Sullivan

Proceedings Volume 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems; (1995) https://doi.org/10.1117/12.208308
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

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.

Citation Download Citation

Shawn Edward Burke and Jeanne M. Sullivan "Distributed transducer shading via spatial gradient electrodes", Proc. SPIE 2443, Smart Structures and Materials 1995: Smart Structures and Integrated Systems, (8 May 1995); https://doi.org/10.1117/12.208308

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