Flexural-mode piezoelectric transducers are extensively used as acoustic actuators. The usefulness of equivalent circuit modelling to characterise this kind of piezoelectric source has been long recognised, even the conventional models are empirical or even they assume drastic approximations. The aim of the study is to improve this kind of equivalent network in such a way that it permits to link together the basic physical parameters, avoiding overly intricate formulation even it does not assume usual approximations. The equivalent network obtained shows a classical structure, the expressions of the parameters of the circuit being however known analytically as simple functions of the parameters of the system. In order to valid the modelling, an application is given when loading the piezoelectric source with a resonator.
Authors:
Lotton, Pierrick; Lihoreau, Bertrand; Bruneau, Michel; Gusev, Vitali
Affiliations:
Laboratoire d'Acoustique de l'Université du Maine, Le Mans, France ; Laboratoire de Physique de l'Etat Condensé, UMR CNRS, L e Mans, France(See document for exact affiliation information.)
AES Convention:
114 (March 2003)
Paper Number:
5757
Publication Date:
March 1, 2003
Session Subject:
Acoustical; Perceptual Models
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.