Confirming the Delayed Lenz Effect

[Farmhand]

MileHigh, Those clips are both very cool, and that pulse timing viewing can be done and would be neat on a pulse motor, just like timing an "old"  car with a timing light  , I've done that thousands of times. The thing is that the timing is not only important to speed, an advanced timing is good for higher speeds and more efficiency but for Torque we want the timing to be a bit less advanced so that enough current can flow in the coils to produce the torque. That would take some mean programming. To run more efficiently for a given speed and load the micro would need to advance timing to get best efficiency, then if more load is added it would need to retard it back a bit from where it was so the motor didn't slow but allowed more current to flow and retain the same speed if possible, but if it cannot maintain speed then the timing would be even more "too far advanced" for the load/speed. For a constant load it would be easy, but for dynamic loading not so simple. Most methods make a compromise between speed in rpm possible and torque. In the last video, I showed that the acceleration is poor when the timing is set so as to give a higher speed when there is a varying load, with the fan the load gets more as the fan goes faster. With a pulse motor we cannot afford to lose momentum even for a moment, the momentum should be increased before the load is added so that the motor does not need to catch up under load, it only needs to hold it's own. So load switching can help that.

With my current coil arrangement, timing is not so critical in a given range over about 500 RPM and changing the pulse width will change the timing of the currents in the "charging" coil  by retarding it more which with my present coil arrangement will simply make the charging coil pull the next magnet more than push the one it should push, so I think it goes from push push on two magnets, to push pull on the same magnet, possibly if the main coil has a stronger pull then the main coil might go from pushing the north magnet to pulling the next south. Automatic timing advancement by design. To a degree, I think !!

I agree the generator load would be simpler. I'll rewind the little generator tonight and try it again, hopefully I can get it to produce 14 volts RMS or so with thick enough wire to allow the powering of a load. I might try a direct drive if I can manage it, if not I'll use a belt.

Using a generator coil with too much impedance is pointless, there is a voltage produced but it goes flat when a load is applied. and the rotor speeds up because the generator no longer needs to charge the capacitance associated to the coil to such a high voltage, so the load on the rotor is less, that is how Thane does it. Next paragraph explains it.

To produce acceleration under load or short circuit in a generator, the generator coil is wound so that it has significant self capacitance and impedance, when running with no load the generator coils self capacitance is charged and discharged with every cycle to the voltage observed and that is a "parasitic" load, so when the coil is shorted the impedance prevents a "real short circuit" but also stops the charging of the coils self capacitance and the coil itself because the wave form is flattened, that relieves the load on the "prime mover" and acceleration happens. It can be done even with a coil that has little resistance by adding a capacitor across the coil, when running with no "actual" load the capacitor is a significant "parasitic" load in itself, when it's added the generator rotor slows down because of it, if the capacitor produces resonance it slows the rotor even more, then when at resonance if the coil is shorted the generator rotor speeds up. Thane just winds the coils so they do the same thing. I don't understand how he thought it was free energy. Eventually when I find or wind the right coil I will show the acceleration under load using just the coil (no added capacitance), however using a capacitor I can produce acceleration under short circuit anytime. Just ask me and I'll show it again with this new setup, like I did with the other setup. It's a known effect and is in line with the laws of physical nature. And is predictable by using known physical laws.

In a Generator coil that works at reasonably high frequency I think we want to reduce the self capacitance of the generator coils to improve the unloaded efficiency of the generator, ie. make it easier to turn with no load. Thane makes his coils so they load up the "prime mover" right from the start up, shorting them reduces the load they present to the prime mover, and all his video's show that.

Anyone want another demonstration ? With wave forms ? Just say and I'll set it up.

Cheers

[hoptoad]

snip....
I think I understand better now the full implications of what you said. My apologies.
snip....

No apologies required. We all can learn from one another. Your experiments, presented information, and honest opinions are a refreshing addition to this thread.

Using a NSNS rotor is a step in the right direction if you wish to fully investigate the positive and / or negative impacts of rotor induced (back) emf on motor torque/speed characteristics.

Cheers

http://www.overunity.com/11350/confirming-the-delayed-lenz-effect/dlattach/attach/123521/image//

[TinselKoala]

You may find these of interest. Note that the Orbette is using Core Effect propulsion, not electromagnetic attraction or repulsion.

http://www.youtube.com/watch?v=W8S02SB-ENA
http://www.youtube.com/watch?v=mi_FJwpPrQk

[Farmhand]

Thanks Tinsel, That you tube dislike dropper hits me as well.    I get regular dislike's as well.

Hey is this type of controller OK for what I want to do ?  It's an ET-168_Stamp. I think it is what I need isn't it ?   http://www.futurlec.com.au/ET-Easy168_Stamp_Technical.jsp

I ordered some Allegro 3144 Hall sensors so I hope they will work for something.

Cheers

P.S. I'm also going to try a second switching phase so I can double the firing frequency and shorten the cogging distance, with 8 magnets set  N-S-N-S, then I could use a maximum of 16 coils on the rotor a coil between each magnet, but in reality there will just be two more coils or maybe one more if it works that way. Also maybe get it to self start with some circuit fiddling. I've got a bit more testing to do yet with this arrangement.

[Hoppy]

You may find these of interest. Note that the Orbette is using Core Effect propulsion, not electromagnetic attraction or repulsion.

http://www.youtube.com/watch?v=W8S02SB-ENA
http://www.youtube.com/watch?v=mi_FJwpPrQk

Excellent videos TK. I hope John Bedini looks at them to see that there is no free mechanical from the rotor as he puts it.