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

[gravityblock]

People should be encouraged to take COP measurements. How long something runs on a battery is meaningless, lol.

The variable theoretical maximum COP of a standard heat pump can be as high as 9.22. The usual home heat pump has an efficiency of only about 50% or less, so at least half of all its energy input is lost.  As you can see, COP measurements could be meaningless also.  The real test is a self-runner with a super cap.


GB

[captainpecan]

People should be encouraged to take COP measurements. How long something runs on a battery is meaningless, lol.

What good is a high COP if you are not able to make use of all the extra energy to keep it running? How long a battery runs can sometimes be even more important than just the COP alone. Take your Orbo replication and your claims of COP>2.5 and try measuring your COP again after your battery has died and let me know how it turns out! LOL. 

[captainpecan]

Ossie,
the last motor you have built is more or less a good and well
timed Newman motor with a feedback loop of the BackEMF spikes
into the battery.

That's a pretty good observation.  There does seem to be some similarities here, although I believe Ossie's layout could be better for many reasons.  Not to mention being able to get many more turns out of much less wire, and sheer ease of build.

If you would chop the input current e.g. 10 times during the incoming
of the magnets, you would get many more spikes all charging up the battery.

So maybe for a quick test just use a function generator driving a relay with 2 switches on them
instead of the 2 reed relays and see, what this will get you in back energy back to the
battery.
Then you can set the driving frequency of the relay maybe to 40 Hz and it will
then make and break the contacts several times, when the magnet aproaches
and goes away from the coil.
This will induce big spikes back to the battery.

Many thanks.

Regards, Stefan.

Although that does sound like a great addition, I'm afraid we tend to make things much more complicated than they need to be as soon as we find a good result.  Adding more components does equal more voltage drops, and more power needed to run even though we stand to gain more for each pulse. Chopping it up would also hinder the rpms.  Maybe keeping it simple is not so bad, because the ability to run it on a AAA battery is pretty nice.  For instance simply pulsing both on the way in and also on the way out.  Since there is 2 peaks for every pass there is a possibility of using both.

[markdansie]

The reason ORBO will have no credability while they have it hooked up to a battery in preference to closed loop with a Cap is the battery effect. Just by utilising a batery it can jump up in volts especially if it is pulsed. I use to recondition bateries by pulsing them and their performance improved dramatically in many instances. The use of a battey can induce chemical changes. How often have you flatenned a batery and come back to find it is partially charged again.
No Cap no cigar...it really is that simple.
Mark

[exnihiloest]

...Gravity is a weak force that has no instruments to measure it directly...

Misinformation. Since general relativity, we know the effects of gravity as indistinguishable from the effects of acceleration, so any accelerometers are gravimeters.
http://en.wikipedia.org/wiki/Gravimeter