I have a very simple PMA concept. I take a flat plate (plastic), drill a hole through the center and hot glue 4 magnents onto the plate. Each magnent is alternating in current (meaning if you for every positive the two closest magnents are negative). Each magnent is about 2 inches long with a 1 inch gap. I place the plate on a fan axle, screw it in place, and turn said fan on. Now I take a copper wire (just your average copper wire that I stripped from an old fan) and coiled it about 70 times +/- 1 turn (also tried different windings) with a seperation of 1.25 inches meaning that while the magnent passes one end of the coil on a positive the other end of the coil will be meeting a negative. I then take the inner and outer leads and place them on a voltmeter. I then place the stationary winding at distances ranging from 1 mm to 4 inches away from the magnents as they turn. I am unable to produce any voltage (yes I have tested the volt meter). I have altered the speed also. Whats wrong?
2006-10-21 08:16:06 · 2 answers · asked by Anmont 2 in Science & Mathematics ➔ Physics
Coming out of the windings is AC not DC switch your meter to AC ,it will be ragged but it should be there. or connect a bridge rectifier and a small load resistor ,also a capacitor to smooth out the ripple.
2006-10-21 09:19:13 · answer #1 · answered by JOHNNIE B 7 · 0⤊ 0⤋
Your description is a sprint obscure. The magnets ought to be oriented +/- +/- +/- +/- in a circle, so the interior of reach ends of magnets oppose. Is your meter set to AC? and on a small variety 10 V? or much less.
2016-12-08 18:36:48 · answer #2 · answered by ? 4 · 0⤊ 0⤋