Articles | Volume 4, issue 1
J. Sens. Sens. Syst., 4, 217–227, 2015
https://doi.org/10.5194/jsss-4-217-2015
J. Sens. Sens. Syst., 4, 217–227, 2015
https://doi.org/10.5194/jsss-4-217-2015

Regular research article 12 Jun 2015

Regular research article | 12 Jun 2015

Increasing the sensitivity of electrical impedance to piezoelectric material parameters with non-uniform electrical excitation

K. Kulshreshtha et al.

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Cited articles

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Kaltenbacher, M., Lahmer, T., Leder, E., Kaltenbacher, B., and Lerch, R.: FEM based determination of real and complex elastic, dielectric and piezoelectric moduli in piezoceramic materials, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 55, 465–475, 2008.
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Short summary
In this paper we show that for radially symmetric piezoceramic disks non-zero sensitivity of the electrical impedance to the whole material parameter set can be computed using a system of 3-ring electrodes and non-uniform electrical excitation. We formulate an optimisation problem for increasing this sensitivity. However, the system displays multiple optimal configurations for the radii of said ring electrodes and we have shown some results from optimising such configurations using simulations.