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研究了Pb(Zr,Ti)O3/Terfenol-D(Tb1-xDyxFe2)合金叠层结构的磁电压特征。介电常数和磁导率随频率变化特征表明,复合样品的电-机械谐振和磁-机械谐振不在同一频率。电-机械谐振和磁-机械谐振均可以增强磁电耦合效果,电-机械谐振对磁电耦合的影响比磁-机械谐振的影响大得多。磁电压的相位差在电-机械谐振频率附近增加0.75π~π,在磁-机械谐振频率附近出现明显的突变。磁电压显示出中心线对称分布,样品的不同位置对磁电压输出的贡献不同。磁电压的不同分布是由于应变的分布方式和谐振模式造成的。
The magnetic voltage characteristics of Pb (Zr, Ti) O3 / Terfenol-D (Tb1-xDyxFe2) The characteristics of dielectric constant and permeability with frequency show that the electro-mechanical resonance and magneto-mechanical resonance of composite samples are not at the same frequency. The electro-mechanical resonance and the magneto-mechanical resonance can both enhance the magnetoelectric coupling effect, and the influence of the electro-mechanical resonance on the magneto-electric coupling is much greater than that of the magneto-mechanical resonance. The phase difference of the magnetic voltage increases by 0.75π ~ π in the vicinity of the electro-mechanical resonance frequency, and a clear mutation occurs near the magnetic-mechanical resonance frequency. The magnetic voltage shows a symmetrical centerline distribution, and the contribution of the different locations of the sample to the magnetic voltage output is different. The different distributions of magnetic voltages are due to the distribution of strain and resonance modes.