Quote from: powerunlimited on March 23, 2008, 08:32:59 PM
Hi Thane
I place 3/4 inch 5 neo magnets stacked on the shaft of the motor on top of the wheel,i monitor the rpm with a very accurate optical tach,.5 rpm accuracy,then let it run to get a stable speed,then short out the
coil, the wheel accelerates the same as with out the magnets remember the 5 magnets are all so rotating with the shaft,the effect is not effected by the presence of such strong magnets, it still accelerates.My set up is 6 holders two magnets on each holder, 3/4 inch neos, one coil.

@ PU,

CAN YOU:

1) TAKE ALL YOUR MAGNETS OFF - CHECK THE SPEED?

THEN

2) PUT THE MAGNETS BACK ON (6 x 2) - CHECK THE SPEED AGAIN?
- MAKE SURE YOUR MOTOR INPUT IS NOT CHANGED.

Thane

Quote from: innovation_station on March 23, 2008, 08:38:22 PM

Quote from: OilBarren on March 23, 2008, 07:50:48 PM
"But wait, I forgot to include the fact that the Neo is probably saturating most/all of the core the the coil is wound on likely making it little more than an air core". Aether22

AETHER22 THIS IS PROBABLY THE MOST INTERING PROPOSAL I HAVE HEARD YET...!
AN AIR CORE WOULD PRODUCE THE MINIMUM BACK EMF INDUCED FIELD.

SO WHY THE DIFFERENCE IN PERFOMANCE PRE AND POST 3" STEEL BAR?

WE HAVE ALSO CONSIDERED POSSIBLE MOTOR ACTION FROM THE ROTOR FLUX AT THE SHORTED COILS.
Thane

that is intresting
i  in reading this post got an idea   sorry guys ...   
but thane have you conssidered there may be some kind of wirless power tranmission between the coils motor and shorted generator coils
just poped into my head thought i would share it 
are your coils tuned  if they were would they not transmitt through resosnance
i just dont know enough about it  with out building .....
on my other ideas i shared they are only ideas and drawings and have yet to be proven true but what if .......

ist
happy easter everyone and God Bless

LIKE A WIRELESS RESONANT TESLA COIL?
VERY - VERY NEAT!

AGAIN THOUGH - HOW WOULD A 3" STEEL BAR MAKE OR BREAK THIS?

Thane

Quote from: OilBarren on March 23, 2008, 11:18:58 AM
"Put a coil round it."PB

THE MAGNETIC FIELDS ARE CONTAINED WITHIN THE FERROMAGNETIC MATERIAL (UNLIKE COPPER CURRENT BEARING WIRE) SO WHAT WILL THE COIL READ OTHER THAN STRAY FIELDS?

Thane

The alternating magnetic field in the shaft will induce a current in the coil. That's how a transformer works.

Quote from: polarbreeze on March 23, 2008, 09:08:48 PM

Quote from: OilBarren on March 23, 2008, 11:18:58 AM
"Put a coil round it."PB

THE MAGNETIC FIELDS ARE CONTAINED WITHIN THE FERROMAGNETIC MATERIAL (UNLIKE COPPER CURRENT BEARING WIRE) SO WHAT WILL THE COIL READ OTHER THAN STRAY FIELDS?

Thane

The alternating magnetic field in the shaft will induce a current in the coil. That's how a transformer works.

I DON'T KNOW ANYTHING AT ALL ABOUT TRANSFORMER OPERATION?
I AM WILLING TO LEARN THOUGH.
MAYBE SOMEDAY I WILL FIGURE OUT WHAT IS GOING ON HERE:
http://ca.youtube.com/watch?v=BJqnfR3B4oc

Thane

Quote from: OilBarren on March 23, 2008, 10:44:39 AM

Quote from: polarbreeze on March 23, 2008, 09:43:27 AM
The drive-frequency theory explains that too. Higher frequency means higher slip, which means higher torque, which delivers the acceleration you observed. It does not require additional electric power input because some of the power that was formerly being dissipated as heat is instead accelerating the motor.

OK NOW EXPLAIN WHY THE EFFECT IS THE SAME (ACCELERATION) WITH:

AN 18 POLE ROTOR
A 6 POLE ROTOR AND
A 2 POLE ROTOR -
A SINGLE MONO-POLE ROTOR

A 1 POLE STATOR COIL,
A 2 POLE STATOR COIL,
A 4 POLE STATOR COIL,
AN 8 POLE STATOR COIL
AND A 9 POLE STATOR COIL.

AND A TOROID COIL THAT DOES NOT PRODUCE BACK EMF IN THE AIR GAP BUT DOES INTORDUCE ROTOR FLUX INTO THE DRIVE SHAFT?

ALSO 1 MORE THEORY PLEASE...
WHY DOES THE ROTOR IN DEMO 2 SPIN FASTER AFTER THE STEEL BAR IS INSERTED BUT BEFORE THE COIL IS SHORTED?

Thane

I think the best approach will be to thoroughly analyse just one example by taking measurements and comparing them with various theories of operation. It will be very confusing to try to work with all variants at once. When a robust theory starts to emerge, then will be the time to see whether it also can be applied to other variants of the experiment. IMHO.
PB