Quote from: aether22 on March 23, 2008, 10:50:12 PM
So, let's make a summary.

Theories:

Magnetic field theory (AKA back-emf)
Aether Theory
Energy transfer theory (from IST)
PB's slip theory

Couple of things, Aether:

1. "PB's slip theory" is not a separate theory. I was building on Thane's hypothesis that there's magnetic feedback going down the shaft and theorizing on how that could be affecting the speed. It is a fact that greater slip produces greater torque and therefore will accelerate the motor, which is the effect that Thane has observed.

2. "Aether theory" has not been clearly stated anywhere on this forum. I think it would be very helpful if you could summarize that theory in a short post so that everyone can have the same idea of what this theory entails.

PB

Quote from: polarbreeze on March 24, 2008, 07:12:01 AM

Quote from: aether22 on March 23, 2008, 10:50:12 PM
So, let's make a summary.

Theories:

Magnetic field theory (AKA back-emf)
Aether Theory
Energy transfer theory (from IST)
PB's slip theory

Couple of things, Aether:

1. "PB's slip theory" is not a separate theory. I was building on Thane's hypothesis that there's magnetic feedback going down the shaft and theorizing on how that could be affecting the speed. It is a fact that greater slip produces greater torque and therefore will accelerate the motor, which is the effect that Thane has observed.

THIS IS VERY FREAKY BECAUSE GREATER SLIP SHOULD CAUSE THE MOTOR STATOR COIL TO DRAW MORE CURRENT FROM THE SOURCE WHICH IT CLEARLY DOES NOT.

Thane

Quote from: OilBarren on March 24, 2008, 07:29:12 AM

Quote from: polarbreeze on March 24, 2008, 07:12:01 AM

Quote from: aether22 on March 23, 2008, 10:50:12 PM
So, let's make a summary.

Theories:

Magnetic field theory (AKA back-emf)
Aether Theory
Energy transfer theory (from IST)
PB's slip theory

Couple of things, Aether:

1. "PB's slip theory" is not a separate theory. I was building on Thane's hypothesis that there's magnetic feedback going down the shaft and theorizing on how that could be affecting the speed. It is a fact that greater slip produces greater torque and therefore will accelerate the motor, which is the effect that Thane has observed.

THIS IS VERY FREAKY BECAUSE GREATER SLIP SHOULD CAUSE THE MOTOR STATOR COIL TO DRAW MORE CURRENT FROM THE SOURCE WHICH IT CLEARLY DOES NOT.

Thane

Thane, you may want to observe the stator current closely in real time and see what happens to it at the moment the acceleration takes place. You will probably find that it RISES momentarily, ie during the time there is increased slip and increased torque, and THEN it drops back to a lower level when the rpm stabilizes again. You'll likely need to capture it on a scope because the meter may not be able to show it as it's a transient thing.

PB

Quote from: polarbreeze on March 24, 2008, 09:26:25 AM

Quote from: OilBarren on March 24, 2008, 07:29:12 AM

Quote from: polarbreeze on March 24, 2008, 07:12:01 AM

Quote from: aether22 on March 23, 2008, 10:50:12 PM
So, let's make a summary.

Theories:

Magnetic field theory (AKA back-emf)
Aether Theory
Energy transfer theory (from IST)
PB's slip theory

Couple of things, Aether:

1. "PB's slip theory" is not a separate theory. I was building on Thane's hypothesis that there's magnetic feedback going down the shaft and theorizing on how that could be affecting the speed. It is a fact that greater slip produces greater torque and therefore will accelerate the motor, which is the effect that Thane has observed.

THIS IS VERY FREAKY BECAUSE GREATER SLIP SHOULD CAUSE THE MOTOR STATOR COIL TO DRAW MORE CURRENT FROM THE SOURCE WHICH IT CLEARLY DOES NOT.

Thane

Thane, you may want to observe the stator current closely in real time and see what happens to it at the moment the acceleration takes place. You will probably find that it RISES momentarily, ie during the time there is increased slip and increased torque, and THEN it drops back to a lower level when the rpm stabilizes again. You'll likely need to capture it on a scope because the meter may not be able to show it as it's a transient thing.

PB

PB - For crying out loud, get you behind to Thane's lab ASAP. You could make a really important contribution to the research, so what is the delay?

Quote from: aether22 on March 23, 2008, 10:50:12 PM

...Shaft saturation, place neodymium magnets in attraction on the shaft...

I think using the neo's is a bit hit-and miss. I suggest the most effective way to saturate the shaft will be to do it with a (DC) electromagnet. If you want the field to be axial, you can put a (static) coil around the shaft. If you want it to be radial, you can position the electromagnet radially adjacent to the shaft.

PB

PS - but see my post below also because I don't think it's necessarily a good idea to be adding complexity to the system when its existing behaviour has not yet been measured and modelled.