Some electromagnetism questions. Please help!

[johnnyBronny]

Hello,

I am working as a Research engineer, and, recently, some problems arose when working on a project. As a mechanical engineer, I don't understand much from elecromagnetism, so here I am. I have a machine with moving parts and I want to attract the metallic part of the machine with a magnet or so. However, I am having some problems:


-If I want to have a magnetic field, do I have to pass a current? what is the relation between the current intensity and the resulting magnetic field?
-How can I have an electroiman that magnetically attracts steel objects, like plates or beams?

I know I can use windings, but I still don't know what this is. Can someone explain? where shall I put the windings? on both objects?​

-How can I have a magnetic device that attracts objects from the two sides? Shall I have two magnetic devices? or How?

I know I can use windings to pull, but to push I need a to induce a current. Is that correct?​

-What kind of electroimans can I use having in mind that I need to control the flux? and what is the cost?


This is for objects with dimensions of 0.1-1.5 m distances between objects of 0.01-0.1 m


Thanks,
regards,
Johnny

 

[Skogsgurra]

As it happens, there was a similar question only a few days ago. Please read thread239-376151 for more information.

Gunnar Englund

http://www.gke.org

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Half full - Half empty? I don't mind. It's what in it that counts.

 

[IRstuff]

hmmm, curious that two people, in a span of barely a week post nearly identical postings, particularly if it's from the same person

Part of what the OP is asking for is not physically possible. Magnets cannot "push" or repel anything that is not already magnetic. Some steels are not influenced by magnets.

Please refrain from double posting or splitting portions of the same question into different threads.

TTFN
faq731-376

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