Studies of high-frequency magnetic permeability of rod-shaped CrO2nanoparticles

2007 ◽  
Vol 204 (3) ◽  
pp. 755-762 ◽  
Author(s):  
L. Z. Wu ◽  
J. Ding ◽  
C. P. Neo ◽  
L. F. Chen ◽  
C. K. Ong
Keyword(s):  
Magnetic Permeability ◽  
High Frequency

High-frequency magnetic permeability of single- and multilayered (Co41Fe39B20) x (SiO2)100–x nanocomposites

2016 ◽  
Vol 58 (12) ◽  
pp. 2453-2456 ◽  
Author(s):  
O. S. Tarasova ◽  
A. V. Sitnikov ◽  
Yu. E. Kalinin ◽  
S. N. Starostenko ◽  
A. B. Granovskii
Keyword(s):  
Magnetic Permeability ◽  
High Frequency

Electronic tuning of magnetic permeability in Co2Z hexaferrite toward high frequency electromagnetic device miniaturization

2011 ◽  
Vol 98 (20) ◽  
pp. 202502 ◽  
Author(s):  
Yajie Chen ◽  
Andrew Daigle ◽  
Trifon Fitchorov ◽  
Bolin Hu ◽  
Michael Geiler ◽  
...  
Keyword(s):  
Magnetic Permeability ◽  
High Frequency ◽  
Electromagnetic Device ◽  
Electronic Tuning ◽  
Device Miniaturization

Increasing the high-frequency magnetic permeability of MnZn ferrite in polyaniline composites by incorporating silver

2013 ◽  
Vol 333 ◽  
pp. 30-38 ◽  
Author(s):  
V. Babayan ◽  
N.E. Kazantseva ◽  
I. Sapurina ◽  
R. Moučka ◽  
J. Stejskal ◽  
...  
Keyword(s):  
Magnetic Permeability ◽  
High Frequency ◽  
Mnzn Ferrite ◽  
Polyaniline Composites

scholarly journals High-frequency magnetic permeability of nanocomposite film

2005 ◽  
Vol 293 (3) ◽  
pp. 938-946 ◽  
Author(s):  
N.A. Buznikov ◽  
I.T. Iakubov ◽  
A.L. Rakhmanov ◽  
A.O. Sboychakov
Keyword(s):  
Magnetic Permeability ◽  
High Frequency ◽  
Nanocomposite Film

scholarly journals Magnetic Flow Scattering in Ferrite Rings

2019 ◽  
Vol 5 (01) ◽  
Author(s):  
Andrew Chubykalo ◽  
Augusto Espinoza ◽  
Viktor Kuligin
Keyword(s):  
Magnetic Flux ◽  
Magnetic Permeability ◽  
High Frequency ◽  
Experimental Measurements ◽  
Magnetic Flow ◽  
High Magnetic Permeability

It is shown that, contrary to the prevailing opinion, the scattering of the magnetic flux, even in ferrites with high magnetic permeability, is very large. A description of the technique for measuring the parameters of ferrites and inductors on ferrite rings is given. The results of experimental measurements of parameters for various grades of ferrites and various values of magnetic permeability are presented. Recommendations on the design of high-frequency transformers and inductors on ferrite rings are given.

scholarly journals A High-Frequency Phase Feature for the Measurement of Magnetic Permeability Using Eddy Current Sensor

2021 ◽  
Author(s):  
Mingyang Lu ◽  
Xiaobai Meng ◽  
Ruochen Huang ◽  
Liming Chen ◽  
Anthony Peyton ◽  
...  
Keyword(s):  
Magnetic Permeability ◽  
High Frequency ◽  
Impedance Measurement ◽  
Destructive Testing ◽  
Zero Crossing ◽  
Linear Feature ◽  
Signal Features ◽  
Fast Processing ◽  
Lift Off ◽  
Phase Term

Electromagnetic sensing has been used for diverse applications of non-destructive testing, including the surface inspection, measurement of properties, object characterization. However, the measurement accuracy could be significantly influenced by the lift-off between sensors and samples. To address the issue caused by lift-offs, various strategies have been proposed for the permeability measurement of ferromagnetic steels, which mainly involves different sensor designs and signal features (e.g., the zero-crossing feature). In this paper, a single high-frequency scenario for the permeability retrieval is introduced. By combining the signal of two sensing pairs, the retrieval of magnetic permeability is less affected by the lift-off of sensors. Unlike the previous strategy on reducing the lift-off effect (directly taking the phase term out of the integration) using the Dodd-Deeds analytical method, the proposed method is based on a high-frequency linear feature of the phase term. Therefore, this method has the merit of high accuracy and fast processing for the permeability retrieval (a simplified version of Dodd-Deeds analytical formulas after the integration). Experimental measurement has been carried out on the impedance measurement of designed sensors interrogating ferromagnetic dual-phase steels. For sensor lift-offs of up to 10 mm, the error of the permeability retrieval is controlled within 4 % under the optimal frequency.

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