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

[gyulasun]

Hi Bruce,

Basically I fancy the idea of a short circuited coil on a toroid, but certainly NOT for good.  The problem is that a short circuited coil highly reduces any flux that may develop in the core either from outside induction or from the excitament from another coil on the same core.
Just short circuit a secondary coil of an unplugged mains transformer and check its primary inductance with inductance meter.
So if the Steorn Orbo does use a second layer of winding that has not been shown and they short circuit it, then it can only be done for a very short time by a controlled switch, hidden somewhere in their setup.
All the other part of your circuit seems ok, including the 5V too. So remove the short, and test the core again.

rgds, Gyula

Good Evening,

A question to all of the knowledgable people on this thread:   

1.  I have completely wound my metglass core (1.12") to where there is nearly no hole at all.  It is wound with 26 awg magnet wire.

2.  It has the first layer that is shorted with itself.

3.  I am using the following circuit (below) with an IRFZ30 Mosfet.

4.  I am using 5 volts, 2 amps for power.

5.  I can not use my 12 volt battery because the shorted first layer allows the current to flow and melts the wire, and I even used two 1 ohm 10 watt resistors in series and they heat up, so I did away with the 12 volt battery.

6.  Old scope is not working and I am going to order a new one.

7.  Used an LED to make sure that mosfet is switching.

Do I need to wrap another Metglass, but without shorting the first layer?

The problem is either:
1.  Shorted first layer is a problem
2.  Switching circuit is not very good
3.  2 amps is not enough current.

Any and all assistance is appreciated.  I am very good at the mechanical but need some assistance with getting this going.  I have a beautiful setup with two rotors.  One with weak magnets and one rotor with 4 pairs of strong magnets.

Thank you for your assistance,

Bruce
http:/energyfreedomreport.com

[woopy]

@ Gotoluc

Thanks very much for sharing all your experiments here and on all the other place where you post

I am very interested in the Orbo config and also in the Ossie motor . I have seen your last experiment with the "assymetrical winding coil" and i have made a rapid and crude replication.
As you said that if it was different polarity on the magnet it could be better, i did mount this coil vertically and i used HDD magnet for this very first test. An it work at once without problem, from 1.5 to 7.2 volts and than my setup is much too bumpy. But good test.

But the aim of this post is that i measured the inductance of the coil when the magnet is passing this very particular coil.


First the semicoil (not joined ) are 1.2 ohms each    and once joined  they have 2.3 ohm  (      3 layers of 0.3 mm wire  about 5 meter on each semicoil  on a standard ferrite core )

second the inductance not joined  are 70 mh each   and once joined   they have about 286 mh ??

than when i let the magnet pass in front of the coil unjoined the behaviour of the inductance is normal that is it drops progressively  from 70 mh to o.o1 mh at TDC  and back up 70 mh

But once joined  the inductance begin at   286 mh,

than approaching the magnet the inductance drop rapidly and began to turn negative until  - 536 mh      MINUS 536 mh and than go up to - 105 mh at tdc   than the magnet passes the coil and same effect on the other side up to 286 mh.

is it possible to get negative inductance ??  Is my meter fooling me ?  Have you any idea  ?

I enclose some pictures to better explain

Regards

[haithar]

do you have knowledge of the method which your LCR-meter uses to measure inductance?

[B2moos]

Hi Bruce

My circuit diagram.
The current of first layer activates the bulb reed switch and shorted second layer.

Mustapha

[gyulasun]

Woopy,

Yes, I also think the "negative" display on inductance is inherent of the LCR meter.
If I can make out correctly the "negative" value is shown in the same measuring range 2 Henry, where the 282mH is shown.  Try to switch to a lower range when the negative numbers are seen and sould find one range where the display is positive again.

rgds, Gyula