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

[broli]

delete this post.

[happyfunball]

HUGE experiment by JLN labs!  I had heard Sean from Steorn mention the importance of "POSITION" of the toroidal coils, and NOW we know why!  So, to briefly recap, we now have three main specs to work with...  1.  Proper permeablity of core for needed Saturation.  2.  Magnets, paired of 1 Tesla or 10000 gauss each, one facing North and one facing South.  3.  The EXACT position on the Netral line between the two magnets for the Toroid.    Ahh...the smell of progress! 

But...Hmm...it still appears that there are TWO toroid, one above the other on the Demo, and they are not positioned on the neutral line.  I wonder if JLN Labs had held the toroid with the hole facing the magnets, and tested with one magnet in front of it, if the CEMF would be nil.  This would also make sense based on the Demo rigs....hmm...
Cheers,

Bruce

I still don't see how placing a coil midline between two N-S magnets would work. Seems like it's basically the same as measuring coil CEMF with no magnets and declaring CEMF cancelled.

[PCB]

1. Does anyone have the circuit diagram of Steorn's Demo (there was a relay, variable resistor and an optical switch and I'm sure other components). They surely cannot be using the relay to switch the current through the coil? Also, the voltage drop across the coil must be less than 1.5V. since they used the variable resistor to reduce the current though the coil in the demo when switching over from the pulse motor. This supports the idea that there are not many turns on the toroid.

2. Does anyone have a design for Steorns' bearing setup?

3. Has anyone worked out what gauge wire they are using?

I think its important to build a prototype as close as possible to theirs, not create a new design. 

[PCB]

I found this exploded view of Steorn's demo system. Not quite the same as the unit show the other day. Has double stator coils plus plus generator pickup coils.

http://www.steorn.com/images/rig01.pdf

Sorry if its already been posted.

[wings]

1. Does anyone have the circuit diagram of Steorn's Demo (there was a relay, variable resistor and an optical switch and I'm sure other components). They surely cannot be using the relay to switch the current through the coil? Also, the voltage drop across the coil must be less than 1.5V. since they used the variable resistor to reduce the current though the coil in the demo when switching over from the pulse motor. This supports the idea that there are not many turns on the toroid.

2. Does anyone have a design for Steorns' bearing setup?

3. Has anyone worked out what gauge wire they are using?

I think its important to build a prototype as close as possible to theirs, not create a new design. 

oops seems that orbo run on magnetic bearings ...

"SM: One of the key problems that we have always faced in implementing Orbo are bearings. The reason is that a typical Orbo interaction involves very strong radial forces that change direction in very small angular displacements. Hence an Orbo system built using traditional bearings is like driving you car at high speed over speed bumps â€" you can do it, but after a small distance you car will simply break down. The key technical advance that we have made with respect to implementation is a move away from the use of traditional bearing technologies to the use of our own passive magnetic bearing technology, ZeroF."
from
http://dispatchesfromthefuture.com/