9 March 2014 Vibration characteristics of a discal piezoelectric transducer with spiral interdigitated electrodes
Author Affiliations +
Abstract
Torsional vibrations of circular tubes, rods, rings, and disks are widely used as operation modes of acoustic wave transducers in various piezoelectric devices. In this paper, a piezoelectric disk with spiral interdigitated electrodes is proposed to generate in-plane torsion in a simple and effective manner. Design and working principle of the torsional transducer are introduced. Vibration characteristics of the transducer with a constant spiral angle are studied. A simplified model is established to investigate the basic dynamic characteristics of torsional vibration accompanying with radial vibration. Electric admittance, resonant frequencies, and mode shapes with different boundary conditions are calculated. Resonant frequencies as functions of several structural parameters are discussed.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chengliang Pan, Chengliang Pan, Wei-Hsin Liao, Wei-Hsin Liao, Yongbin Liu, Yongbin Liu, Zhihua Feng, Zhihua Feng, } "Vibration characteristics of a discal piezoelectric transducer with spiral interdigitated electrodes", Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 90571A (9 March 2014); doi: 10.1117/12.2046196; https://doi.org/10.1117/12.2046196
PROCEEDINGS
10 PAGES


SHARE
Back to Top