BEHAVIOR OF DIELECTRIC PERMITTIVITY OF PIEZOMONOCRYSTALL NEAR THE RESONANT FREQUENCY

Authors

  • V.Gh. Mirzoyan Institute of Applied Problems of Physics, NAS RA
  • A.A. Sahakyan A.I. Alikhanyan National Science Laboratory (YerPhI), Armenia
  • P.V. Mirzoyan Institute of Applied Problems of Physics, NAS RA

DOI:

https://doi.org/10.46991/PSYU:A/2014.48.3.062

Keywords:

dielectric permittivity, resonant frequency, piezoelectric crystals, capacitance, inductance

Abstract

The behavior of the quartz dielectric permittivity ($\epsilon$) depending on the frequency of the applied alternating electric field is investigated. Peculiarities of quartz $\epsilon$ near the resonant frequency in the range from 1 kHz to 1 MHz and shows that the excitation of the piezoelectric crystal odd resonance frequency value of the real part of permittivity repeatedly ($\epsilon^{\prime}$) increases, when the driving frequency of the crystal is close to the resonance frequency of the low frequency and a further increase in the frequency of the alternating electric field, the value of $\epsilon^{\prime}$ abruptly changes sign, becoming negative. The absolute value of $\epsilon^{\prime}$ increases by more than an order of magnitude. With further increase in the excitation frequency value of $\epsilon^\prime$ increases continuously and monotonically and tends to the value off resonance. Similar results were obtained for the odd high harmonics. The imaginary part of permittivity ($\epsilon^{\prime\prime}$ ) negligible in the vicinity of the resonance frequencies of the odd. In the even of resonance frequencies of visible changes of $\epsilon$ is not observed.

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Published

2014-11-03

How to Cite

Mirzoyan, V., Sahakyan, A., & Mirzoyan, P. (2014). BEHAVIOR OF DIELECTRIC PERMITTIVITY OF PIEZOMONOCRYSTALL NEAR THE RESONANT FREQUENCY. Proceedings of the YSU A: Physical and Mathematical Sciences, 48(3 (235), 62–65. https://doi.org/10.46991/PSYU:A/2014.48.3.062

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Section

Physics