# Help with linear motor, magnetization?

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#### neazoi

##### Advanced Member level 5
Hello, attached is a picture of a cylinder magnet moving in and out of a coil, in a linear AC generator configuration.
Below it, there are 3 possible configurations for the magnetization of the magnet (axially/diametrically/radially).
Which of the 3 configurations will produce more voltage on the coil, assuming same motion, magnet mass and magnet strength conditions for all three of them?

#### Attachments

• mot.png
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#### KlausST

##### Super Moderator
Staff member
Hi,

use the first.
theoretically you will see no voltage with 2 and 3.

klaus

neazoi

### neazoi

Points: 2

#### neazoi

##### Advanced Member level 5
Hi,

use the first.
theoretically you will see no voltage with 2 and 3.

klaus

I was instructed by a physics guy to use something like the attached schematic. I am also showing the magnetic field lines short of.
It uses a magnet with NS-SN-NS, which will reverse the field four times per pass.
But I do not get it how this would produce more voltage. I think that this configuration will produce greater frequency AC not greater voltage. I thought that greater voltage could be produced only by increasing the speed of the moving magnet or the coil turns only.

#### Attachments

• mot2.png
5.3 KB · Views: 4

#### KlausST

##### Super Moderator
Staff member
Hi,

The greater frequency may cause a greater voltage. But in the NS SN configuration i have no clue about magnetic field strength...

It's interesting. Try it and post the results please.

Klaus

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