Application of the Lock-in Technique in Magnetoelectric Coupling Measurements of the PZT/Terfenol-D Composite

This paper presents a study of magnetoelectric (ME) properties the PZT/Terfenol-D composite with varying number layers. The consists piezoelectric and magnetostrictive phases that are mechanically coupled. purpose this setup is to gain control over electric polarization material via an external magnetic field. Unlike most similar composites, our samples utilize commercial patch instead pure PZT. At present, researchers face two main problems regarding materials: (i) effect observed far below room temperature for single-phase materials, (ii) ME coupling too weak be commercially viable. Our research was carried out lock-in technique on we synthesized. Relatively strong room-temperature between both samples. Two types characteristics were investigated: voltage versus AC field frequency, DC We detected multiple, grouped signal peaks ascribed different resonance modes. Uniquely, form band-like which might important step in bringing materials closer wider use.