摘要
基于自偏置磁-机-电耦合效应,提出了一种新型电流传感器,其由磁电层合材料Sr Fe12O19/Fe Cu Nb Si B/PZT、质量块、基座组成。磁电层合材料Sr Fe12O19/Fe Cu Nb Si B/PZT具有自偏置磁-机-电耦合效应。通过该磁电层合材料与载流电线周围的涡流磁场耦合,该新型电流传感器具有较大的输出电压和电流灵敏度,无需额外的直流偏置磁场等优点。实验结果表明,所提出的传感器在载流电线的电流频率为50 Hz时具有198.91 m V/A的较高灵敏度,并且电流传感器的输出电压与施加的50 Hz电流大小之间呈现出良好的线性关系。另外,提出的传感器还可以区分小至0.01 A的微小电流。这种基于自偏置磁-机-电耦合效应的电流传感原型器件在电流监测领域具有极大的应用前景。
This paper presents a novel current sensor based on self-biased magnetic-mechanical-electric coupling effect,which is composed of a magnetoelectric laminate SrFe12 O19/FeCuNbSiB/PZT,a mass and a base. The magnetoelectric laminate SrF e12 O19/FeCuNbSiB/PZT has a self-biased magnetic-mechanical-electric coupling effect. By coupling the vortex magnetic field around a current-carrying cable,the proposed sensor has a large output voltage and electric current sensitivity without additional DC bias magnetic field. Experimental results demonstrate that the presented sensor has a higher sensitivity of 198.91 mV/A at 50 Hz current and the induced output voltage shows a good linear relationship to the applied 50 Hz current. Also,the sensor can distinguish small step changes of 0.01 A current. The proposed current sensor based on self-biased magnetic-mechanical-electric coupling effect has great application prospect in current monitoring field.
引文
[1] Crescentini M,Marchesi M,Romani A,et al. A Broadband,OnChip Sensor Based on Hall Effect for Current Measurements in Smart Power Circuits[J]. IEEE Instrumentation and Measurement Society,2018,67(6):1470-1485.
[2] De Marcellis A,Reig C,Cubells-Beltrn M D,et al. Monolithic Integration of GMR Sensors for Standard CMOS-IC Current Sensing[J]. Solid-State Electronics,2017,135:100-104.
[3] Lu Caijiang,Li Ping,Wen Yumei,et al. Zero-Biased Magnetoelectric Composite Fe73.5Cu1Nb3Si13.5B9/Ni/Pb(Zr1-x,Tix)O3for Current Sensing[J]. Journal of Alloys and Compounds,2017,589:498-501.
[4]王英,杨爱超,周煦光,等.一种采用压电复合音叉的电流传感器研究[J].传感技术学报,2018,31(3):342-346.
[5] Wang Yaojin,Li Jiefang,Viehland D. Magnetoelectrics for Magnetic Sensor Applications:Status,Challenges and Perspectives[J]. Materials Today,2017,17(6):269-275.
[6]南策文.多铁性材料研究进展及发展方向[J].中国科学:技术科学,2015,45(4):339-357.
[7]何泓材,林元华,南策文.多铁性磁电复合薄膜[J].科学通报,2008,53(10):1136-1148.
[8]张纳,王博文,李淑英,等.基于磁场传感器的层状磁电复合材料动态特性的有限元模型研究[J].仪器仪表学报,2010,31(7):1528-1533.
[9] Carlos A F Vaz,Jason Hoffman,Charles H Ahn,et al. Magnetoelectric Coupling Effects in Multiferroic Complex Oxide Composite Structures[J]. Adv Mater,2010,22:2900-2918.
[10] Sebastian Salzer,Robert Jahns,Andre Piorra,et al. Tuning Fork for Noise Suppression in Magnetoelectric Sensors[J]. Sensors and Actuators A:Physical Volume,2016,237:91-95.
[11] Dong S,Li J F,Viehland D. Vortex Magnetic Field Sensor Based on Ring-Type Magnetoelectric Laminate[J]. Appl Phys Lett,2005,85(12):2307-2309.
[12] Shuxiang Dong,John G Bai,Junyi Zhai,et al. CircumferentialMode,Quasi-Ring-Type,Magnetoelectric Laminate Composite—A Highly Sensitive Electric Current and/or Vor-Tex Magnetic Field Sensor[J]. Appl Phys Lett,2005,86(18):182506.
[13]卢诗华,于歆杰,楼国锋.一种基于磁电层合材料的新结构大电流传感器[J].电工技术学报,2016,31(23):70-76.
[14] Lu Caijiang,Li Ping,Wen Yumei,et al. Magnetoelectric Composite Metglas/PZT-Based Current Sensor[J]. IEEE Transactions on Magnetics,2014,50(11):4006004.
[15] Chung Ming Leung,Siu Wing Or,Shengyao Zhang,et al. RingType Electric Current Sensor Based on Ring-Shaped Magnetoelectric Laminate of Epoxy-Bonded Tb0.3Dy0.7Fe1.92Short-Fiber/Nd Fe B Magnet Magnetostrictive Composite and Pb(Zr,Ti)O3Piezoelectric Ceramic[J]. Journal of Applied Physics,2010,107:09D918.
[16] Shi Zhan,Tong Yongshuai,Deng Shuwen,et al. Magnetoelectric Sensor with Miniature Universal Tunable Bias Magnetic Circuit[J]. Applied Physics Letters,2013,103:032903.
[17]鲍丙豪,骆英,田兴成,等.纵向极化与磁化的压电/磁伸材料磁电效应理论及实验[J].中国科学:物理学力学天文学,2011,41(1):71-77.
[18] Dibin Zhu,Michael J Tudor,Stephen P Beeb. Strategies for Increasing the Operating Frequency Range of Vibration Energy Harvesters:A Review[J]. Measurement Science and Technology,2010(21):022001.