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http://dx.doi.org/10.6111/JKCGCT.2016.26.4.139

Effects of piezoelectric material on the performance of Tonpilz transducer using finite element method  

Seo, Jin-Won (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Choi, Kyoon (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Lee, Ho-Yong (R & D Center, Ceracomp Co., Ltd.)
Abstract
Effects of the shape and size of the piezoelectric materials on the performance of tonpilz transducers were studied with a computer simulation using a finite element method (FEM). The diameter and height of the donut-shaped piezoelectric ceramics head mass were changed as variables. And the effect of the stack number was also investigated. Finally, if the piezoelectric ceramics were changed to a piezoelectric single crystal having high piezoelectric constants, how the performances especially, the output power and the TVR transmittance were affected was simulated by FEM. As a result, the output of transducer could be increased to 10 times of PZT-4 with replacement of relaxor single crystal of the same size.
Keywords
Tonpilz; Piezoelectric transducer; Finite element method (FEM); Ultrasonic; Ceramic stack;
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Times Cited By KSCI : 3  (Citation Analysis)
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