A magnet, traveling charged particle or electric current consists
of a magnet around them, which an area consisting of a magnetic force that can act
on another magnet, traveling charged particle or electric current. When you
drop iron filings around the magnet this field is quite evident, and along the
lines of this field you will see a certain pattern forming.
In a practical application when a magnetic field of Magnetic Chuck is used, there are
instances when an object has to be protected from this field, and this process
is done by a procedure called shielding. Shielding material is used, which changes
the lines of the magnet. Along a path of least resistance that it creates the
material in fact, "conducts" the field lines.
Therefore, you should not take shielding in its literal
meaning, as lines of the magnet are not blocked or stopped, and only their path
is altered. For field lines to travel the shielding material offer a low energy
pathway, and is a better conductor than air.
Shielding is not a difficult procedure; however, to get the
best results one has to consider several factors. Firstly, there should not be
sharp corners around the shape of the shield, as lines of the magnet will be
resistant to make sharp turns. Therefore, shields in cylindrical and spherical
shapes are most effective.
The size of the shield is the next aspect to consider. To more
lines of the Motor arc Magnets a the large shield will be exposed; however, to travel through the shield these lines
will not be induced. Usually, in a practical home setting, for shielding the
space that is beyond two to three feet from the magnetic source a shield
measuring six-foot square would be sufficient.
With layering the material and increasing its thickness the
efficacy of the shield is increased. Lastly, there will be a difference in proper
alignment of the shield surface. The magnetic field's orientation is affected
by the way the shield is placed as it encounters the shield's surface.
Before you start your project on shielding the field, consider
all factors, measure the magnetic field and determine the level of attenuation
is required.
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