Hi. I've got a project going and I need to make an efficient electromagnet. The problem is that I'm pretty much a noob at this, so I could use some hints and tips at how to make it as efficient as possible.
The electromagnets I'm building are supposed to repell eachother (when putting + next to + and vice versa). The electromagnets are supposed to only be turned on for a very short time and then turned off again, and I need them to be as powerful as possible for this short period of time. The shape of the electromagnets are supposed to be tubular.
What metal should I use? Where can I get hold of this metal?
What wire should I use to wrap around the rod? Does it need to be thick or thin? What metal is best used for this wire? What batteries should I use? Is there a ratio between the diameter of the wire and the rod that would make it more efficient?
Should I make several layers of the wire wrapped around the rod or just one? Should I put insulation outside the wire? These types of basic facts is what I'm looking for, but I dont mind more advanced ideas either (tho I'm not that fluent in "electro-lingo" )
At the moment I have an approx. 1cm diameter iron rod, and I use 0.6mm diameter copper wire to wrap around it (it has some lacquer around it as insulation). I dont know if its soft iron or not. I have tried paralell circuiting 5x 9v batteries to the magnet but it diddent seem to make it very powerful. So if any of you have any tips or hints on how to make this as powerful as possible for a short amount of time I would greatly appreciate it. I'm planning on using a high current and high voltage to make it more powerful (as high as possible from circuiting batteries). Also it would be preferrable if the magnetic field dissapated as quickly as possible after the current has stopped.
And I'm also wondering how I can greatly increase the voltage of the current. As far as I have understood, I can make a tranformer to incfrease the voltage by wraping copper wire around two permanent magnets (facing in the opposite direction) and let the current flow throught this.
If anyone has any hints or tips or any how-to's I'd greatly appreciate it.
The electromagnets I'm building are supposed to repell eachother (when putting + next to + and vice versa). The electromagnets are supposed to only be turned on for a very short time and then turned off again, and I need them to be as powerful as possible for this short period of time. The shape of the electromagnets are supposed to be tubular.
What metal should I use? Where can I get hold of this metal?
What wire should I use to wrap around the rod? Does it need to be thick or thin? What metal is best used for this wire? What batteries should I use? Is there a ratio between the diameter of the wire and the rod that would make it more efficient?
Should I make several layers of the wire wrapped around the rod or just one? Should I put insulation outside the wire? These types of basic facts is what I'm looking for, but I dont mind more advanced ideas either (tho I'm not that fluent in "electro-lingo" )
At the moment I have an approx. 1cm diameter iron rod, and I use 0.6mm diameter copper wire to wrap around it (it has some lacquer around it as insulation). I dont know if its soft iron or not. I have tried paralell circuiting 5x 9v batteries to the magnet but it diddent seem to make it very powerful. So if any of you have any tips or hints on how to make this as powerful as possible for a short amount of time I would greatly appreciate it. I'm planning on using a high current and high voltage to make it more powerful (as high as possible from circuiting batteries). Also it would be preferrable if the magnetic field dissapated as quickly as possible after the current has stopped.
And I'm also wondering how I can greatly increase the voltage of the current. As far as I have understood, I can make a tranformer to incfrease the voltage by wraping copper wire around two permanent magnets (facing in the opposite direction) and let the current flow throught this.
If anyone has any hints or tips or any how-to's I'd greatly appreciate it.