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Resonant frequency temperature coefficients for the piezoelectric resonators working in various vibration modes

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Abstract

Resonant frequency temperature coefficient is dependent on material properties, resonator dimensions and vibration mode. It could be effectively tuned by the resonator dimensions or by the domain structure in ferroelectric crystals. Optimum dimensions for the zero temperature coefficient resonator are calculated for ring radial vibration mode as a function of resonator dimensions (r 2/r 1 = 3.8 for hard PZT ceramics, APC841 type). There are similar results of the temperature coefficient calculations for PZT ceramics and crystal resonators. The temperature coefficient is generally smaller for higher overtones of resonant mode.

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Acknowledgement

This work was supported by the EU Fifth Framework Program-Thematic Network on Polar Electroceramics (POLECER, contract No. G5RT-CT-2001-05024).

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Authors and Affiliations

  1. Department of Physics and International Center for Piezoelectric Research, Technical University of Liberec, Liberec, Czech Republic

    J. Erhart, L. Rusin & L. Seifert

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  1. J. Erhart
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  2. L. Rusin
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  3. L. Seifert
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Correspondence to J. Erhart.

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Erhart, J., Rusin, L. & Seifert, L. Resonant frequency temperature coefficients for the piezoelectric resonators working in various vibration modes. J Electroceram 19, 403–406 (2007). https://doi.org/10.1007/s10832-007-9062-1

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  • DOI: https://doi.org/10.1007/s10832-007-9062-1

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