Sizing PZT Transducers in Impedance-Based Structural Health Monitoring

Artigo

Fecha

2011-06-01

Registro en:

IEEE Sensors Journal. Piscataway: IEEE-Inst Electrical Electronics Engineers Inc, v. 11, n. 6, p. 1405-1414, 2011.

1530-437X

http://hdl.handle.net/11449/9795

10.1109/JSEN.2010.2098865

WOS:000289805300016

0534385574959094

http://repositorioslatinoamericanos.uchile.cl/handle/2250/3886073

Autor

Minist Educ Brazil

Universidade Estadual Paulista (Unesp)

Virginia Polytech Inst & State Univ

Institución

Universidade Paulista Júlio de Mesquita Filho (Brasil)

Resumen

A theoretical and experimental analysis regarding the correct size of PZT (Lead Zirconate Titanate) transducers used in structural health monitoring (SHM) systems based on the electromechanical impedance (EMI) technique is presented. Tests were carried out on aluminum structures using 5A and 5H PZT patches of various sizes. The results show that the sensitivity of SHM systems for damage detection can be optimized if the transducers are correctly sized according to the proposed procedure.

Materias

Electromechanical impedance

PZT ceramics

structural engineering

structural health monitoring (SHM)

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