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Coil winding / Re: How to determine the limits of a coil / magnet configuration
« Last post by brandnewb on March 24, 2024, 11:54:56 AM »I can already tell that running 96 magnets at 3.7 Hz at a 3.75 degree spacing per disk. And both disks spaced at 17mm from each other will never get me to where I need to get using 0.71mm diam wires.
You see I can only get 31 coil legs in that space to have 3 phases non overlapped. yes yes yes I abandoned overlapping phases because it just leaves no space for cores and although unconfirmed I now again think it will hinder the field forming abilities of coils.
So either we increase the rotation speed of the PMA or we decrease the wire thickness.
choices choices.
Now here comes the conundrum.
How can a gravity torque test ever be useful if it depends on the field the electromagnets (coils) produce. And that means they need to be rotated over at service speed. Not at all a gravity torque test can ever provide.
Someone like @joestru please get back in here and make some sense out of this all
You see I can only get 31 coil legs in that space to have 3 phases non overlapped. yes yes yes I abandoned overlapping phases because it just leaves no space for cores and although unconfirmed I now again think it will hinder the field forming abilities of coils.
So either we increase the rotation speed of the PMA or we decrease the wire thickness.
choices choices.
Now here comes the conundrum.
How can a gravity torque test ever be useful if it depends on the field the electromagnets (coils) produce. And that means they need to be rotated over at service speed. Not at all a gravity torque test can ever provide.
Someone like @joestru please get back in here and make some sense out of this all