P2I-5 Study of Cross-Talk Reduction in Linear Array for Imaging in SHM Applications

This paper describes the simulations and experimental results of the border and placement effects on individual array elements including the frequency and electric response of the plate-ceramic set when bonding the ceramics at different positions from the border of the plate. Images of defects showing the dead zone, made with a linear piezoelectric array with eight 7 times 7 times 0.5 mm square piezoelectric plates bonded on a 1.1 mm thick aluminum plate at different positions, are also shown. Finally, the simulation of the cross coupling decrease when using 2-2 piezocomposite square plates, and its corresponding experimental measurements, are also included and compared with standard piezoceramic plates. Finite Element Modeling is performed using PZFlex