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      PZT-PMNS 세라믹의 공진특성 및 압전 정수의 전계의존성 = The Electric Field Dependence of the Resonance Characteristics and Piezoelectric Constant of the PZT-PMNS Ceramics

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      https://www.riss.kr/link?id=A82290424

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      In this paper, the variable tendency of the piezoelectric constant and resonance characteristics of the piezoelectric ceramics due to the electric field is studied.
      The practical application of piezoelectric ceramics is not only pa plied in field of small signal. For example, in case of an ultrasonic motor, 120 ~ 130Vrms of driving voltage is needed and that of an piezoelectric pump, 200 ~ 220Vrms of voltage is required. Therefore, to examine the characteristics of piezoelectric ceramics in large signal contributes to reducing the susceptibility to the multifarious application and securing the ease of the production of control circuit. These contributions may be connected to the expansion of industrial application.
      We fabricated disk-type piezoelectric ceramic samples by using conventional method and measured the resonance characteristics of these samples under from low to high voltage driving conditions. According to increasing the value of the input voltage, we measured the resonance frequency of the piezoelectric ceramic, and inquired into the cause of these phenomena.
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      In this paper, the variable tendency of the piezoelectric constant and resonance characteristics of the piezoelectric ceramics due to the electric field is studied. The practical application of piezoelectric ceramics is not only pa plied in field o...

      In this paper, the variable tendency of the piezoelectric constant and resonance characteristics of the piezoelectric ceramics due to the electric field is studied.
      The practical application of piezoelectric ceramics is not only pa plied in field of small signal. For example, in case of an ultrasonic motor, 120 ~ 130Vrms of driving voltage is needed and that of an piezoelectric pump, 200 ~ 220Vrms of voltage is required. Therefore, to examine the characteristics of piezoelectric ceramics in large signal contributes to reducing the susceptibility to the multifarious application and securing the ease of the production of control circuit. These contributions may be connected to the expansion of industrial application.
      We fabricated disk-type piezoelectric ceramic samples by using conventional method and measured the resonance characteristics of these samples under from low to high voltage driving conditions. According to increasing the value of the input voltage, we measured the resonance frequency of the piezoelectric ceramic, and inquired into the cause of these phenomena.

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