scholarly journals Piezomagnetic strain-dependent non-linear magnetoelectric response enhancement by flux concentration effect

2013 ◽  
Vol 102 (17) ◽  
pp. 172904 ◽  
Author(s):  
Ying Shen ◽  
Junqi Gao ◽  
Yaojin Wang ◽  
Peter Finkel ◽  
Jiefang Li ◽  
...  
Keyword(s):  
Concentration Effect ◽  
Non Linear ◽  
Response Enhancement ◽  
Flux Concentration ◽  
Magnetoelectric Response ◽  
Strain Dependent

A New Method to Increase the Magnetoelectric Voltage Coefficients of Metglas/PVDF Laminate Composites

2009 ◽  
Vol 1199 ◽  
Author(s):  
Zhao Fang ◽  
David Sheng-Guo Lu ◽  
Ninad Mokhariwale ◽  
Mario Remond El Tahchi ◽  
Qiming Zhang
Keyword(s):  
Magnetic Field ◽  
Aspect Ratio ◽  
Magnetic Flux ◽  
Polyvinylidene Fluoride ◽  
Effective Means ◽  
Concentration Effect ◽  
Magnetic Flux Density ◽  
Laminar Composites ◽  
Voltage Coefficient ◽  
Flux Concentration

AbstractThe magnetic flux density inside a Metglas sheet is much higher than that of the applied external magnetic field due to its high magnetic permeability, which is known as the magnetic flux concentration effect. Magnetic flux concentration of Metglas as a function of its sheet aspect ratio (width/length) was investigated for Metglas/Polyvinylidene fluoride (PVDF) laminar composites. Both the simulations and experimental results suggest that the magnetic flux concentration effect is markedly enhanced when the aspect ratio of a Metglas sheet is reduced. Consequently the magnetostriction of Metglas and the magnetoelectric (ME) voltage coefficients of the laminar composites are enhanced. The ME voltage coefficient for a laminar composite with a 1 mm wide and 30 mm long Metglas sheet (25 μm thick) is 21.46 V/cm•Oe, which is much higher than those reported earlier in similar laminar composites without making use of the flux concentration effect. The results demonstrate an effective means to significantly enhance the sensitivity of the magnetostrictive/piezoelectric composites as weak magnetic field sensors.

scholarly journals Improved magnetoelectric effect in magnetostrictive/piezoelectric composite with flux concentration effect for sensitive magnetic sensor

AIP Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 047114 ◽  
Author(s):  
Hao Zhang ◽  
Caijiang Lu ◽  
Changbao Xu ◽  
Yingjie Xiao ◽  
Junguo Gui ◽  
...  
Keyword(s):  
Magnetoelectric Effect ◽  
Magnetic Sensor ◽  
Concentration Effect ◽  
Piezoelectric Composite ◽  
Flux Concentration
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