Magnetic Force
Magnetic Force
(OP)
Hello,
I am working on a project where I need to be able to calculate the force required to separate a small disc magnet from a piece of metal. Could someone point in the direction to where I can find the equations necessary to complete my task?
Thank You
I am working on a project where I need to be able to calculate the force required to separate a small disc magnet from a piece of metal. Could someone point in the direction to where I can find the equations necessary to complete my task?
Thank You





RE: Magnetic Force
F = 0.577 x B^2 x A
Where F = force [in lb-f]
and B = flux density at the interface [in Gauss]
and A = area in contact [in inches ^ 2].
The constant above [0.577] may change with extremes of geometry.
Check out the Field Calculator tool at our web site:
http://www.dextermag.com
Go to Tools -> Field Calculators
to see online calculators for disks and squares.
Hope this helps!
Best wishes
Gareth Hatch
Director of Technology
Dexter Magnetic Technologies Inc.
RE: Magnetic Force
Morgan Mead
RE: Magnetic Force
The key here is that F is directly proportional to B^2 x A.
Gareth
RE: Magnetic Force