The theory and the experiment show that the matching circuit composed of an inductor and a capacitor can change the resonant frequency and the effective electromechanical coupling coefficient.
理论与实验表明，由电感和电容组成的匹配电路，使换能器的共振频率发生了变化。
The dielectric constant, pyroelectric coefficient, thickness extension vibration electromechanical coupling factor and their temperature dependence are investigated.
研究了它们的介电常数，热电系数，厚度伸缩振动机电耦合系数及其温度依赖性。
The dielectric constant, pyroelectric coefficient, thickness extension vibration electromechanical coupling factor and their temperature dependence are investigated.
研究了它们的介电常数，热电系数，厚度伸缩振动机电耦合系数及其温度依赖性。
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