Jump to content

How do I make a coil cover half of a circle


DARK0717

Recommended Posts

19 minutes ago, DARK0717 said:

How much resistance does a coil make in comparison to the repelling force of an n52 magnet

The resistance of a coil depends on the length and thickness of the wire. (And what it is made of.)

The repelling force of a magnet depends on the strength of the two magnets and the distance. (Nearby it will be an inverse square law, becoming an inverse cube law at greater distance. I think.)

You cannot relate these two things. It is like asking "how much flavour does a strawberry have in comparison to the fuel economy of a Ferrari"

Link to comment
Share on other sites

The magnets inside the pistons are quite close to each other. The method I think of to "turn off" the magnets is by matching the poles using an electromagnet from within a metal attached to them both

It is similar to this

MAG.gif

Edited by DARK0717
Link to comment
Share on other sites

If the generator shall provide one positive and one negative smooth pulses per turn, it's called a two-poles alternator.

Then the good design lets a magnet be the rotor, and the coil surrounds it at the stator. Called Gramme design. Check the drawing there
https://en.wikipedia.org/wiki/Alternator
https://en.wikipedia.org/wiki/File:Alternator_1.svg

Iron at the stator is useful, among others to shield the world from the dangerous magnetic field, but with rare-earth magnets the iron is not mandatory for a decent induction.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.