however - the national high mag field guy said he can get 1 ton off of ten amps. but really teh equation - is that it? electromagnets are jus this totally dope energy efficient method of motion thats just getting ignored? help me out guys lets do this how do i build my mag launcher???
The "L" term in the equation is the length of the coil. Fat wire make a long "L" term for a given number of turns. Ideally you want to concentrate the turns as close as possible.
ideally id want a high number for U - it just seems like 10amps, 10turns, 1cm, w the 0.25 for permeability of iron gives an unrealistic amount of force. from above 1T can lift 6.3kg (13.889 lbs) 5cm
I mean if thats the facts - than Id LOVE LOVE LOVE to get my hands on 2cm of 0.00AWG wire (1cm thick) and attach it to a deep cycle marine battery blast it w 300Amps. (thin wire can't handle the amps)
however - the national high mag field guy said he can get 1 ton off of ten amps. but really teh equation - is that it? electromagnets are jus this totally dope energy efficient method of motion thats just getting ignored? help me out guys lets do this how do i build my mag launcher???
Core saturation.It's gotta be the permeability value for the core.
because if I do 1 layer of the coil with 5 turns - that makes the length (L) of the gap 0.0036576m (the height/diamter of the 7AWG magnetwire) that will make a coil of, ok lets make it a 1cm diameter iron core plus the 5 turns so; 10 x 0.0036576m + the 1cm core = 4.66cm wide and 3.66mm tall. and connect that to 10Amps - I still get a huge number for the force T value of = 3,417 T
Do you know what core saturation is?It's gotta be the permeability value for the core.
because if I do 1 layer of the coil with 5 turns - that makes the length (L) of the gap 0.0036576m (the height/diamter of the 7AWG magnetwire) that will make a coil of, ok lets make it a 1cm diameter iron core plus the 5 turns so; 10 x 0.0036576m + the 1cm core = 4.66cm wide and 3.66mm tall. and connect that to 10Amps - I still get a huge number for the force T value of = 3,417 T
Do you know what core saturation is?
You can only stuff so much lines of magnetic flux into a core. Even if I had iron and wire that never melted, I can't just pump a million amps through something the size of my fist to make a super strong, super small electromagnet. Basically, how big something is limits how powerful it can be. Might be obvious but you're running into the specifics of it and the limitations of paper napkin calculations.Im reading about it now - please explain!
ok core materials than?
but is the value listed in the wikapedia link with common material values what Id need to use for U?
https://en.wikipedia.org/wiki/Permeability_(electromagnetism)#Values_for_some_common_materials
Nope, you are confusing it with "Wraps". If your wire is 0.5mm and your solenoid is 50 mm long, you can get 100 turns per wrap. If you need 200 turns, you'll need two wraps, turns = 200 and L = 50.What do you mean? I have been thinking that L,the gap is the number levels in the coils i.e. if it's just 1 level of the wire w 5 turns the L would be the height/diemeter of the magnet wire. e.g. if I my N value is 10 - 5 turns on 2 levels my L value is 0.0073152m ~ 2 x the hight/diameter of the magnet wire.
essentially the length of the core
Right?
It doesn't work that way here. People say what people say. Welcome to the community.PLEASE ONLY COMMENT IF YOU HAVE ACTUAL KNOWLEDGE OF WHAT EQUATION TO USE TO FIND THE FORCE OF AN ELECTROMAGNET IN REGARDS TO COIL DESIGN.
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So basically this has been a bunch of people who don’t know anything about electromagnets telling a another guy who doesn’t know anything about electromagnets he’s wrong - save that **** for reddit.
I NEED ACTUAL HELP!
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