Novel approach to make low cost, high density PZT phased array and its application in structural health monitoring

Details

Event

International Workshop on Structural Health Monitoring

2009 September 9-11; Stanford, CA

Speakers

Baomin Xu
Buhler, Steve
Karl Littau
Elrod, Scott A.
Uckun, Serdar
Event

Novel approach to make low cost, high density PZT phased array and its application in structural health monitoring

In this paper we present a cost effective method to fabricate flexible, high density piezoelectric tape, and explore its potential application as a new type of Lamb wave phased array for Structural Health Monitoring (SHM) through simulating the Lamb wave propagation generated from single element and multi-element arrays. The piezoelectric tape consists of many patterned and densely packed PZT (lead zirconate titanate) elements sandwiched between two flexible films/foils. The PZT elements can have different shapes and distribution densities and can be addressed individually and/or by groups. The piezoelectric tape phased array can be easily integrated into various mechanical structures and has good conformability to curved surfaces.

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