The last two decades have witnessed an ever-increasing research effort devoted to the development and application of magnetoelectric (ME) sensing composites. Herein, the ME effect in a metallic/polymeric composite fabricated by adhering silver electrodes to two surfaces of one poly(vinylidine fluoride) (PVDF) disk is explored. To obtain obvious ME response, the resonance frequency of the experimental setup is measured. Furthermore, it is proved that the ME coupling in the composite (silver/PVDF/silver) originates from the product effect of the piezoelectric effect and ampere force produced by eddy currents under DC bias magnetic fields. By observing measurement results, the ME voltage is approximately considered to be proportional to both AC and DC magnetic fields. Consequently, the average ME voltage coefficient is obtained as 384.73 mV cm⁻¹ Oe at a DC magnetic field value of 1000 Oe. Considering the magnetic fields and eddy current, a theoretical model of ME coupling is developed by combining the ampere force expression and piezoelectric equations, which matches well with measurement results. Without the need of magnetic phase and an external power supply, the proposed disk with excellent linear responses and a considerable ME voltage coefficient has the potential for application in real-time monitoring sensors.

中文翻译：

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利用磁电盘中涡流和压电引起的安培力的机械介导乘积效应进行 AC/DC 磁场传感

在过去的二十年里，致力于磁电 (ME) 传感复合材料的开发和应用的研究工作不断增加。在此，研究了通过将银电极粘附到一个聚（偏二氟乙烯）（PVDF）盘的两个表面而制造的金属/聚合物复合材料中的 ME 效应。为了获得明显的 ME 响应，测量了实验装置的共振频率。此外，证明复合材料（银/PVDF/银）中的ME耦合源于直流偏置磁场下涡流产生的压电效应和安培力的乘积效应。通过观察测量结果，可以近似认为 ME 电压与 AC 和 DC 磁场均成正比。因此，平均 ME 电压系数为 384.73 mV cm^-1 Oe，直流磁场值为 1000 Oe。考虑到磁场和涡流，结合安培力表达式和压电方程，建立了ME耦合的理论模型，与测量结果吻合良好。无需磁相和外部电源，所提出的具有出色线性响应和可观 ME 电压系数的磁盘具有在实时监测传感器中应用的潜力。