Can an Electro-Permanent Magnet Work as a Temporary Lifting Device?

  • Level: Undergrad 
  • Thread starter ctech4285
  • Start date
  • Tags Tags
    Magnet
1 reply · 3K views · last reply
ctech4285
Messages
31
Reaction score
0
So I am trying to come up with a magnet parts lifting device that can be temporarily turned off

Their theory was, take two magnets (7x7x1.5mm in this case) place them between two iron plates with opposing poles and there should not be any field lines leaving the iron.
Take away one of the magnets and the work load closes the field line path, exerting a force

Well it did not work, with two opposing magnets present the force is only slightly less than with one.

Any ideas where I went wrong?
 
Attachments
  • 3D rendered diagram of an electro-permanent magnet lifting device: two gray iron plates with a green block and red block between them, labeled Work Load, To be replace with a electro magnet, Iron, and Iron (trasparent).
    electro-permanent_magnet.JPG
    19 KB · Views: 543
this is exactly what i had in mind
 
Attachments
  • Schematic of an electro-permanent circuit in two phases: resting phase on the left and operating phase on the right, showing steel cores, magnets, solenoids and a ferro-magnetic load with a numbered key.
    epm_schem.jpg
    19.1 KB · Views: 678