Please use this identifier to cite or link to this item:
|Type:||Artigo de evento|
|Title:||Resonance Frequencies Of The Multilayered Piezotransducers|
|Abstract:||Piezoelectric transducers used in high power ultrasonic applications are composed of piezoelectric ceramics, metallic blocks and a central bolt that pre-stresses the assembly. The characterization of these transducers has been done by using numerical methods but, in many cases, simplified one-dimensional models are enough to a good physical interpretation of the problem. In this work it was used Masonś equivalent electric circuit for onedimensional modeling of composed transducers. It was employed Théveninś equivalent circuit to simplify the problem and evaluate the effects of the central bolt on the resonances. Some transducers were mounted and their resonance frequencies were measured. The results show a good fitting between the experimental and the calculated data. By using the presented model, with bolt included, it was verified that other new longitudinal vibration modes occur. This fact enhances the possibility of analysis of the behavior of transducers through the frequency spectrum.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.