Three Dimensional Characterization of Complex Parameters of Piezoceramic Disks Using an Identification Technique

Nachef, Sylvain; Brissaud, M.; Noterman, Didier

doi:10.1016/b978-0-7506-0389-8.50093-7

Cited by 6 publications

(1 citation statement)

References 3 publications

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“…The fitting method presented here could certainly be improved using an automatic identification technique based, for instance, on least mean-square method [32] or on simplex algorithm [33]. In this case, the electrode parameters (geometrical dimensions, mass per unit volume, and elastic parameters) could also be introduced in the model and estimated using this method.…”

Section: Discussionmentioning

confidence: 99%

Modelling of a cantilever non-symmetric piezoelectric bimorph

Brissaud

Ledren

Gonnard

2003

J. Micromech. Microeng.

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The aim of this paper is the modelling of a non-symmetric bimorph constituted by a piezoelectric material deposited on an alumina substrate and used either as an actuator or a sensor. Theoretical modelling based on the flexural modes of the structure is carried out and the influence of the electrode characteristics (geometrical dimensions and elastic parameters) is introduced in the modelling for calculating the bimorph bending displacement. In actuator mode, the electrical admittance of the cantilever non-symmetric bimorph is stated and the intrinsic electromechanical coupling factor linked to the bimorph bending motion is deduced and compared with that defined in IEEE Standards. The analytical modelling was used for characterizing a cantilever bimorph constituted by a piezoelectric thick film deposited on an alumina substrate. A trial and error fitting method is described for determining the elastic, piezoelectric and dielectric constants of the piezoelectric material. The influence of the electrode parameters is calculated and the measurement uncertainty is deduced. In sensor mode the open voltage delivered by the bent piezoelectric layer and the electrical equivalent circuit of the bimorph are given. Theoretical results are compared with those obtained by the finite element method, and discussed.

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Section: Discussionmentioning

confidence: 99%

Modelling of a cantilever non-symmetric piezoelectric bimorph

Brissaud

Ledren

Gonnard

2003

J. Micromech. Microeng.

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Characterization of rectangular and cylindrical piezoceramics using three dimensional modelling

Brissaud

2016

Ferroelectrics

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New transmission line analogy applied to single and multilayered piezoelectric transducers

Dion

1993

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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It is shown that a piezoelectric element vibrating in an extensional or shear mode can be modeled rigorously by systematic use of the transmission line analogy and the superposition theorem. A schematic representation of such an element which is in a way more intuitive than others representations is introduced. The stresses on the electroded faces are considered as sources of stress applied at the two ends of an acoustic transmission line, since the acoustical perturbations may be considered as originating on these faces. Using transmission line theory, a complete set of expressions is found for electrical impedance, acoustic stresses, and velocities. Computed results are exactly the same as those given by the classical method, even if the computation sequence is almost entirely different. An intuitive graphical model for a piezoelectric element is proposed. It is also shown that the acoustic velocities on opposite faces of an asymmetrical loaded piezoelectric plate are exactly equal at the antiresonance frequency when internal losses are neglected. The programs developed can be used efficiently for practical multilayered transducer design.

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Three Dimensional Characterization of Complex Parameters of Piezoceramic Disks Using an Identification Technique

Cited by 6 publications

References 3 publications

Modelling of a cantilever non-symmetric piezoelectric bimorph

Modelling of a cantilever non-symmetric piezoelectric bimorph

Characterization of rectangular and cylindrical piezoceramics using three dimensional modelling

New transmission line analogy applied to single and multilayered piezoelectric transducers

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