Nonlinear constant evaluation in a piezoelectric rod from analysis of second harmonic generation

The design of transducers requires a clear understanding of their electromechanical behavior. This involves precise linear modeling as well as characterization. With the development of novel techniques such as harmonic imaging as well as high-power applications, nonlinear aspects must also be taken...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2009-01, Vol.56 (1), p.167-174
Main Authors: Parenthoine, D., Haumesser, L., Meulen, F., Lethiecq, M., Tran-Huu-Hue, L.-P.
Format: Article
Language:English
Subjects:
Acoustic signal processing
Acoustics
Design engineering
Dielectric measurements
Displacement measurement
Distortion measurement
Electric variables measurement
Exact sciences and technology
Frequency conversion
Frequency ranges
Fundamental areas of phenomenology (including applications)
Harmonic analysis
Harmonic distortion
Harmonic generations
Mechanical variables measurement
Nonlinearity
Physics
Piezoelectric materials
Piezoelectric transducers
Piezoelectricity
Second harmonic generation
Transducers
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Summary:The design of transducers requires a clear understanding of their electromechanical behavior. This involves precise linear modeling as well as characterization. With the development of novel techniques such as harmonic imaging as well as high-power applications, nonlinear aspects must also be taken into account. In this study, harmonic generation in the mechanical displacement of a piezoceramic rod under high sinusoidal electric fields was measured. Theoretically, the nonlinearity can come from various sources: dielectric, mechanical, and electromechanical. The nonlinearity coming from external sources being eliminated or taken into account, it is shown here that the analysis, over a wide frequency range, of 2 parameters related to the harmonic distortion enables the respective identification of these sources and, at the same time, the evaluation of third-order constants of the material.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2009.1016