FIELD: physics.
SUBSTANCE: invention relates to protection of the measuring technique from the influence of low frequency magnetic fields and it can be used for screening devices that located near high-voltage equipment. The invention is directed to increase the effectiveness of screening that provided by the fact that the magneto-screen is in the form of a closed shell surrounding the shielded cavity. Besides the shell is made of two layers while the inner layer is made of ferromagnetic material and the outer layer is made of conductive material and it closed in planes perpendicular to the directions of the external magnetic field.
EFFECT: increasing the effectiveness of screening for measuring technique from the influence of low frequency magnetic fields.
1 dwg, 6 dwg
Title | Year | Author | Number |
---|---|---|---|
MULTILAYER ELECTROMAGNETIC SCREEN | 2009 |
|
RU2381601C1 |
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|
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FERROMAGNETIC SCREEN | 0 |
|
SU769643A1 |
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DEVICE FOR TESTING MAGNETIC INDUCTION MEASURING ARRANGEMENTS | 0 |
|
SU866512A1 |
Authors
Dates
2012-02-10—Published
2010-09-20—Filed