Temperature field of the piezoelectric transformer operating in longitudinal vibration mode

Author

Hu, Junhui

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

Volume

1

fYear

2002

fDate

8-11 Oct. 2002

Firstpage

1003

Abstract

In this study, a theoretical model of the steady-state temperature field in a bar-shaped piezoelectric transformer operating in longitudinal vibration mode is developed, and the characteristics of the temperature field are analyzed numerically. Being different from previous work, the effects of the stress distribution and the relative positions of input and output parts on the internal loss distribution are taken into account in this model. The calculated temperature rise and its distribution agree well with the experimental data. Using this model, useful guidelines for the thermal design of this transformer are obtained.

Keywords

internal stresses; piezoelectric devices; potential transformers; temperature distribution; vibrations; bar-shaped piezoelectric transformer; internal loss distribution; longitudinal vibration mode; piezoelectric transformer; steady-state temperature field; stress distribution; temperature distribution; temperature field; temperature rise; thermal design; Boundary conditions; Electrodes; Equations; Internal stresses; Piezoelectric materials; Resistance heating; Resonant frequency; Steady-state; Temperature distribution; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE

ISSN

1051-0117

Print_ISBN

0-7803-7582-3

Type

conf

DOI

10.1109/ULTSYM.2002.1193565

Filename

1193565