Cooling effects in Steorn eOrbo

[PaulLowrance]

The IR gun batteries are probably fine. It complains when they're low. I don't think that's the cause though.

[PaulLowrance]

BTW, here's a bit of good news. For the last ... oh 30 minutes it's been running without the IR gun, which was replaced with a dual indoor / outdoor thermometer probe. Placed the probe on the toroid. Prior to the test both indoor & outdoor temperatures agreed. Then fired up the dremel, and the toroid temperture has been about 0.2°F lower.     That's something at least. It does not wow me like the first experiment where the toroid temperature dropped about 3°F below ambient, or at least that's what the IR gun said.

What's interesting is that over time (usage) the cooling effect has slowly gone down. The first experiment wowed me. The 2nd experiment was very impressive, but didn't wow me. The 3rd experiment is ... limping; i.e., very small cooling effect. So far this is a pattern, unless I can figure out a way to make it work well all the time.

[PaulLowrance]

Actually, further details is that the toroid temperature during this run, which has been going for ~~ 1/2 hour, started about 1°F above ambient, and it  s l o w l y  closed the gap. Just a few minutes ago it was 0.2°F *below* ambient, but now it's 0.4°F below ambient. 

So for the moment it's doing better. ... Just checked it again, and it's now 0.6°F below ambient!!

Still inconclusive, as it all needs to be checked over & over again, and lots of calibration & control tests are needed, but it's fun stuff. 

[PaulLowrance]

It was interesting watch this over time. It just seems like the effect slowly dies out over time, and builds up when resting. During this run the instrument said the toroid went up to 0.6°F below ambient temperature, which it maintained for awhile, and then began to slowly decline to it eventually went settled near ambient.

So I'll let it rest for a day.

[k4zep]

It was interesting watch this over time. It just seems like the effect slowly dies out over time, and builds up when resting. During this run the instrument said the toroid went up to 0.6°F below ambient temperature, which it maintained for awhile, and then began to slowly decline to it eventually went settled near ambient.

So I'll let it rest for a day.

Yes my friend, you gotta know when to hold them, know when to fold them and know when to walk away!!!!!!!  Hey, try grounding one of those legs of the coil, the same ground the scope ground or ps ground was attached to??

Later
Ben