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Comparison of Methods for the Measurement of Piezoelectric Coefficients

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2 Author(s)
Fialka, J. ; Central Eur. Inst. of Technol. (CEITEC), Brno Univ. of Technol., Brno, Czech Republic ; Benes, P.

The charge constant of piezoelectric material is one of the crucial constant values. At the present time, the measurement of this value is mostly realized by means of three techniques: the frequency method, the laser interferometer technique, and the quasi-static method. These techniques have been practically applied to piezoelectric ceramic samples. Our paper presents comparison of the individual methods with regard to their accuracy and the demands placed on the instrumentation and preparation of the piezoelectric material samples. A “soft” ceramic product marketed under the production code of NCE51 was used in the experiments. The methods are described in detail, including the process of sample preparation, description of the experiments, and procedure of calculating coefficients from the measured values.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:62 ,  Issue: 5 )