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Analysis of dependence between magnetic properties of granulated ferromagnetic specimens and relation of its length to diameter
https://doi.org/10.32446/0368-1025it.2020-6-46-51
Abstract
Paper studies the problems about experimental determining magnetic parameters of nonuniform granular magnetics. It has been noted that the existing shortage of direct and (or) indirect experimental data on the magnetic properties of granular ferromagnetic specimens with different values of a relative length, in particular, has a negative impact on the validity of the requirements and decisions to create and ensure the performance of relevant functional elements, movable operating elements of various equipments and devices. By the example of cylindrical specimens of balls with the range of relative length 1–16 within the framework of effective medium macromodel the dependences of induction, magnetic permeability, susceptibility, magnetization and field intensity have been obtained. It has been shown that in the range of field intensity 9–47 kA/m values of induction and magnetization of investigating specimens increase, that indicates the absence of magnetic saturation of such granular (as opposed to solid) magnetics. And this is the case at almost stable values of magnetic susceptibility and permeability. Obtained results are useful in designing movable operating elements of various equipments and devices.
About the Authors
A. V. Sandulyak
MIREA – Russian technological university
Russian Federation
Russian Federation
Alexander V. Sandulyak
Moscow
R. Y. Tkachenko
MIREA – Russian technological university
Russian Federation
Russian Federation
Roman Y. Tkachenko
Moscow
D. A. Sandulyak
MIREA – Russian technological university
Russian Federation
Russian Federation
Darya A. Sandulyak
Moscow
M. N. Polismakova
MIREA – Russian technological university
Russian Federation
Russian Federation
Maria N. Polismakova
Moscow
A. A. Sandulyak
MIREA – Russian technological university
Russian Federation
Russian Federation
Anna A. Sandulyak
Moscow
V. A. Ershova
Moscow polytechnical university
Russian Federation
Russian Federation
Vera A. Ershova
Moscow
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Review
For citations:
Sandulyak A.V., Tkachenko R.Y., Sandulyak D.A., Polismakova M.N., Sandulyak A.A., Ershova V.A. Analysis of dependence between magnetic properties of granulated ferromagnetic specimens and relation of its length to diameter. Izmeritel`naya Tekhnika. 2020;(6):46-51. (In Russ.) https://doi.org/10.32446/0368-1025it.2020-6-46-51
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