Magnetoelectric effects in multilayered magnetostrictive/piezoelectric composites with Fe-based nanocrystalline alloy at zero bias magnetic field

2014 ◽  
Vol 595 ◽  
pp. 87-91 ◽  
Author(s):  
Lei Chen ◽  
Ping Li ◽  
Yumei Wen ◽  
Yong Zhu
Keyword(s):  
Magnetic Field ◽  
Nanocrystalline Alloy ◽  
Bias Magnetic Field ◽  
Zero Bias ◽  
Piezoelectric Composites ◽  
Magnetoelectric Effects

scholarly journals Self-Biased Bidomain LiNbO3/Ni/Metglas Magnetoelectric Current Sensor

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7142
Author(s):  
Mirza I. Bichurin ◽  
Roman V. Petrov ◽  
Viktor S. Leontiev ◽  
Oleg V. Sokolov ◽  
Andrei V. Turutin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Lithium Niobate ◽  
Resonance Region ◽  
Current Sensor ◽  
Bias Magnetic Field ◽  
Piezoelectric Composites ◽  
Current Consumption ◽  
Bending Mode ◽  
Increased Sensitivity ◽  
Working Characteristic

The article is devoted to the theoretical and experimental study of a magnetoelectric (ME) current sensor based on a gradient structure. It is known that the use of gradient structures in magnetostrictive-piezoelectric composites makes it possible to create a self-biased structure by replacing an external magnetic field with an internal one, which significantly reduces the weight, power consumption and dimensions of the device. Current sensors based on a gradient bidomain structure LiNbO3 (LN)/Ni/Metglas with the following layer thicknesses: lithium niobate—500 μm, nickel—10 μm, Metglas—29 μm, operate on a linear section of the working characteristic and do not require the bias magnetic field. The main characteristics of a contactless ME current sensor: its current range measures up to 10 A, it has a sensitivity of 0.9 V/A, its current consumption is not more than 2.5 mA, and its linearity is maintained to an accuracy of 99.8%. Some additional advantages of a bidomain lithium niobate-based current sensor are the increased sensitivity of the device due to the use of the bending mode in the electromechanical resonance region and the absence of a lead component in the device.

RESONANT MAGNETOELECTRIC EFFECTS IN Ni/Pb(Zr,Ti)O3/FeCo TRILAYERED SEMICIRCULAR COMPOSITES

2013 ◽  
Vol 20 (01) ◽  
pp. 1350004 ◽  
Author(s):  
H. HONG ◽  
Y. G. WANG ◽  
K. BI ◽  
F. G. CHEN
Keyword(s):  
Magnetic Field ◽  
Field Frequency ◽  
Zero Bias ◽  
Resonant Frequencies ◽  
Magnetoelectric Effects ◽  
Magnetic Field Frequency ◽  
Voltage Coefficient ◽  
The Magnetic Field ◽  
Effective Excitation ◽  
Multifunctional Devices

Magnetoelectric (ME) effect has been studied in semicircular composites with a negative magnetostrictive/piezoelectric/positive magnetostrictive Ni/Pb(Zr,Ti)O3/FeCo trilayered structure. The ME behavior of the Ni/Pb(Zr,Ti)O3/FeCo is different from those in previous studies and zero-bias ME effects and four remarkable resonant peaks have been observed in the dependence of the ME voltage coefficient on the magnetic field frequency in the 1–150 kHz range. The effective excitation of the acoustical oscillations provided by the positive and negative magnetostrictive layers is responsible for the multifrequency ME effects. The results open up a suitable way to make multifunctional devices with multi-resonant-frequencies and/or zero-bias operations.

Structure design and driving voltage optimization of a novel giant magnetostrictive actuator

2017 ◽  
Vol 31 (03) ◽  
pp. 1750022 ◽  
Author(s):  
Guangming Xue ◽  
Peilin Zhang ◽  
Zhongbo He ◽  
Dongwei Li ◽  
Canwei Cai
Keyword(s):  
Magnetic Field ◽  
High Speed ◽  
Current Model ◽  
Experimental System ◽  
Structure Design ◽  
Driving Voltage ◽  
Bias Magnetic Field ◽  
Zero Bias ◽  
Voltage Wave ◽  
Magnetostrictive Actuator

Typical giant magnetostrictive actuator (GMA) cannot meet the requirement of driving a high-speed on–off valve for limitation in bias magnetic field exerted on giant magnetostrictive material. To solve this problem, a novel GMA is designed with zero bias magnetic field. Furthermore, to satisfy the requirement of the displacement direction, a “T” type transfer rod is joined to convert material’s elongating into actuator’s shortening. Simultaneously, long responding time of the actuator, especially the rising time of coil current, is also considered in this paper. The transient-state current is modeled based on the equivalent circuit considering parallel resistance of the coil, and from computed result, high opening voltage can be taken to promote responding speed of the actuator, and then an optimized driving voltage wave is presented. At last, with the help of an experimental system, the current model is verified and the driving effect of optimized voltage wave is tested and analyzed.

Microwave magnetoelectric effects in ferrite—piezoelectric composites and dual electric and magnetic field tunable filters

2007 ◽  
Vol 24 (1) ◽  
pp. 5-9 ◽  
Author(s):  
A. S. Tatarenko ◽  
V. Gheevarughese ◽  
G. Srinivasan ◽  
O. V. Antonenkov ◽  
M. I. Bichurin
Keyword(s):  
Magnetic Field ◽  
Tunable Filters ◽  
Piezoelectric Composites ◽  
Magnetoelectric Effects ◽  
Electric And Magnetic Field

Magnetoelectric Effect in Magnetostrictive/Polymer and Piezoelectric Composites

Aerospace ◽  
2003 ◽  
Author(s):  
Nersesse Nersessian ◽  
Siu Wing Or ◽  
Gregory P. Carman
Keyword(s):  
Magnetic Field ◽  
Piezoelectric Layer ◽  
Magnetoelectric Effect ◽  
Bias Magnetic Field ◽  
Piezoelectric Composites ◽  
Voltage Coefficient

A 1200m V/cmOe magnetoelectric voltage coefficient was measured in a Terfenol-D/epoxy and PZT-5H[2-2] composite. The magnetoelectric effect is a result of a coupling between the magnetostrictive (Terfenol-D/epoxy) and piezoelectric (PZT-5H) layers. The coupling was achieved mechanically by bonding the piezoelectric layer in between two magnetostrictive layers. The maximum in magnetoelectric voltage coefficient was measured at a frequency of 8Hz and a bias magnetic field of 103kA/m. The magnetoelectric voltage coefficient was observed to be highly dependent upon the bias magnetic field.

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