Investigation of transient magnetoelectric response of magnetostrictive/piezoelectric composite applicable for lightning current sensing

• Published in: Sensors and actuators. A. Physical. 2021-10, Vol.329, p.112789, Article 112789
• Main Authors: Zhou, Hai, Xu, Changbao, Lu, Caijiang, Jiang, Xueling, Zhang, Ziyan, Wang, Jingqi, Xiao, Xiaobing, Xin, Mingyong, Wang, Lei
• Format: Article
• Language: English
• Subjects: Damping; Damping oscillation; Electric currents; Laminates; Lightning; Magnetic sensor; Magnetoelectric composite; Magnetostriction; Piezoelectricity; Resonant frequencies; Terfenol alloys; Transient current; Transient magnetic field; Triangles
• ISSN: 0924-4247; 1873-3069
• DOI: 10.1016/j.sna.2021.112789

Fig. 1. Configuration of Terfenol-D/PZT/Terfenol-D laminate and experimental setup details. This paper investigates the transient magnetoelectric (ME) response of the symmetric Terfenol-D/PZT/Terfenol-D laminate structure driven by transient current. The time-domain output voltages are investigated in detail under the currents generated by the square, sine, and triangle transient voltages. The damping oscillation phenomenons at natural frequency are observed with the fast-changing current and weaken when the width of the transient voltages are equal to the times of the natural period of laminate. Furthermore, the transient ME responses driven by the 8/20μs lightning current are also investigated. For detecting the amplitude of the 8/20μs lightning current, the detection sensitivity reaches 6.8 mV/A in the range of 90–2742 A. These results show that the ME composite is an ideally sensing device for the lightning current sensing. [Display omitted] •This paper investigates the transient magnetoelectric response of theTerfenol-D/PZT/Terfenol-D laminate.•Damping oscillation phenomenons at natural frequency are observed with the fast-changing current.•For detecting the amplitude of 8/20μs lightning current, the detection sensitivity reaches 6.8 mV/A in the range of 90–2742 A.•ME composite is an ideally sensing device for the lightning current sensing. This paper investigates the transient magnetoelectric (ME) response of the symmetric Terfenol-D/PZT/Terfenol-D laminate structure driven by transient current. The time-domain output voltages are investigated in detail under the currents generated by the square, sine, and triangle transient voltages. The damping oscillation phenomenons at natural frequency are observed with the fast-changing current and weaken when the width of the transient currents are equal to the times of the natural period of laminate. Furthermore, the transient ME responses driven by the 8/20μs lightning current are also investigated. For detecting the amplitude of the 8/20μs lightning current, the detection sensitivity reaches 6.8 mV/A in the range of 90–2742 A. These results show that the ME composite is an ideally sensing device for the lightning current sensing.