STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[k4zep]

Hi Ben,
was the first picture DSC04415.JPG of your
posting in:
http://www.overunity.com/index.php?topic=8411.msg217358#msg217358
the timebase set to 5 millisec/div or was it set to 5 microseconds/div ?

If it was set to
5 millisec/div
the tau=L/R is about 0.5 millisec,
so if we would know the ohmical resistance of the coil,
we could calculate L= tau/R

Then you need to use a much higher DC supply voltage to only
switch on for about 0.1 Milliseconds( 1/5th tau) to  reach the same input current
level as you used now after about 2 Milliseconds.

I simply don't remember, if VERY important, could do it again.  I didn't take notes.

[k4zep]

Okay Ben,
let´s calculate some more:

From:
http://www.overunity.com/index.php?topic=8411.msg217358#msg217358

I can see, that you used a 10:1 divider scope head, as the
voltage in the upper trace is about 8.5 milliVolts at a 0.1 Ohm shunt
maximal input current amplitude pulse.

So it was 12.4 Volts DC input at maximum 0.85 amps then,
that gives a DC resistance of about 14.5 Ohms for the coil.

Could you please verify this with a multimeter ?Current resistor not percision but marked .1 ohm,  Coil is 12.6 ohms  on my good FLUKE.
Many thanks.

As tau=L/R is the time the waveform reaches about 63 % of the maximum amplitude
it is about 0.5 Milliseconds in your scope shot. ( a higher horizontal res scope shot would help)

Actual measured rist time @ 100% is 62.5 uS, very darn fast as HXFET is VERY FAST and inductance very low.

So we can calculate now L of your toroidal coil:

L= tau/R= 0.0005 sec / 14.5 Ohms = about 34 microHenries

So now we can calculate what amount the coil L can store maximum
of magnetic field energy when it is energized by
0.85 amps in your example:

W= 0.5 x L x I^2

So we have 0.5 x 0.000034 H x (0.85 amps)^2= 12.3 microWattsseconds

So you see the coil has much too low Henries to store enough energy
for better BackEMF recovery.

Would be good, if the coil would at least have a few hundred MilliHenries.  You have changed gears here and back to regenerator stuff.  We do not want any apparent inductance to get ideal suupressiosn of back emf or inductive kickback.  Funny thing in a bifilar coil there is a kickback from that strange windings .

Regards, Stefan.
[/quote/

[PaulLowrance]

I'm very open minded about Steorn having the smoking gun, but the people who keep saying there's not bemf are wrong, and I've already explained it. Again, you cannot do the bemf tests without any current in toroid coil. The toroid coil *must* have current going through it if you want to see the bemf. Many pages back in this thread I told Ben how to measure this, and how it's working, but it seems this was ignored.

IMO the excess energy effect, if any, is in the magnetic viscosity.

Enjoy

[broli]

I'm very open minded about Steorn having the smoking gun, but the people who keep saying there's not bemf are wrong, and I've already explained it. Again, you cannot do the bemf tests without any current in toroid coil. The toroid coil *must* have current going through it if you want to see the bemf. Many pages back in this thread I told Ben how to measure this, and how it's working, but it seems this was ignored.

IMO the excess energy effect, if any, is in the magnetic viscosity.

Enjoy

I hope you accept the superposition principle. Basically in this case it means the induced voltage will just add up with any other wave regardless of it's nature. If it was a constant value it would add up and show the sum of the two, but it would act the same if the initial wave was at 0 volts. So whether current is applied or not during the induced moment the result should be the same.

People have been overlooking something else with the Orbo though, I'm sure MH will notice it since he's so smart. I have some very good reasons to believe this motor is mechanical overunity not electrical. But not wasting the electrical energy by recovering it is a bonus and should defently not be ignored.

[k4zep]

I'm very open minded about Steorn having the smoking gun, but the people who keep saying there's not bemf are wrong, and I've already explained it. Again, you cannot do the bemf tests without any current in toroid coil. The toroid coil *must* have current going through it if you want to see the bemf. Many pages back in this thread I told Ben how to measure this, and how it's working, but it seems this was ignored.

IMO the excess energy effect, if any, is in the magnetic viscosity.

Enjoy

Hi Paul,

I remember the post and accepted it as a theory.  Also the theory of magnetic viscosity is not mentioned in nominal magnetic writings.
Would you like to elaborate on the magnetic viscosity theory?  All ideas at this point are considered and appreciated.

Respectfully.
Ben