Why are magnetic keeper used to store magnet
Importance of Magnetic Keepers in Storing Magnets
The use of magnetic keepers is essential in storing magnets to maintain their magnetic properties and prevent them from losing their strength over time. Let's delve into the reasons why magnetic keepers are crucial in preserving the magnetism of magnets:
Preventing Demagnetization
- When magnets are left in an open circuit state, they can gradually lose their magnetism due to various factors such as exposure to external magnetic fields, temperature changes, and mechanical shock.
- Placing a magnetic keeper across the poles of a magnet creates a closed magnetic circuit, which helps to maintain the magnetic field within the magnet and prevents demagnetization.
Preserving Magnetic Strength
- Magnetic keepers help to preserve the magnetic strength of magnets by reducing the risk of magnetic flux leakage.
- By creating a closed loop for the magnetic field, the keeper ensures that the magnetic flux remains concentrated within the magnet, thereby maintaining its strength.
Protecting Surrounding Objects
- Using magnetic keepers also helps to protect surrounding objects and equipment from the strong magnetic fields of the magnets.
- By containing the magnetic field within the keeper, the risk of interference with nearby electronic devices or magnetic-sensitive materials is minimized.
Enhancing Longevity
- Properly storing magnets with magnetic keepers can prolong their lifespan and ensure that they remain effective for a longer period.
- By safeguarding the magnet's magnetic properties, the keeper helps to maintain the magnet's performance and longevity.
In conclusion, the use of magnetic keepers is crucial in storing magnets to prevent demagnetization, preserve magnetic strength, protect surrounding objects, and enhance the longevity of the magnets. By implementing magnetic keepers, one can ensure that their magnets retain their magnetic properties effectively.
Why are magnetic keeper used to store magnet
A
magnet keeper, also known historically as an
armature, is a
paramagnetic
bar made from soft iron or steel, which is placed across the poles of a
permanent magnet
to help preserve the strength of the magnet by completing the
magnetic circuit
; it is important for magnets that have low magnetic
coercivity
, such as
alnico
magnets.
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