"It will be a science fair project and not really looking to make real power"
A couple hints:
1st and most important, make
SURE the coils are the right side up.
An upside down coil will cancel out a coil that is the right side up, so it is very important.
3 phase will have rectifier losses, meaning the first 1.4V is lost in the rectifiers.
If it does not get some kind of result with 3 phase, use the coils and make it single phase, because the 'power spikes will be higher.
Then can drive back to back Red LEDs directly from the raw AC, with no rectifier losses.
"Just measure what does get generated and show the performance"
Problem here is the spikes will be short lived and far appart.
Typical meter you would have, or be willing to buy, is not likely to show any kind of stable reading.
Could put a cheap capacitor on the rectified DC output to get some kind of stable peak voltage reading.
Capacitors can be dangerous.
Like ballons full of electricity.
Take precautions, like maybe a 1M drawdown resistor on the capacitor,
and make sure it can not be shorted out, which is like the ballon breaking!
Sketchs.
One shows the output in single phase.
The only time it makes a spike is when the magnets are passing coils.
One shows both ways to connect the Red LEDs.
180 ohm 1/4W resistors would be fine.
Like I said, shoot me an email.
G-
