The TPU uncovered? (A PROBABLE technique.)

[pauldude000]

@jon

Good work.

Your scope shot does show the initial kick, but your system is also a damped wave. (The resonance of the "kick" dying out in the top of the square.)

I have been racking my brain to come up with a possible experiment which demonstrates only the kick itself. I think I have come up with something, and have initially tested the idea with pretty good success.....

I intend to demonstrate using one pancake coil wound CW, and a second one wound CCW both in the same plane. Both connected in parallel to directly short out any "transformer" effect, and with canceling mag fields which will cancel or "use up" and deaden out as much of the input signal and associated mag field effect as possible, leaving only the voltage artifact without resonation.

The initial test looks pretty good on scope, with an input driven only by a digital FG, it is putting in a signal at approx 9v, but the squares are deadened out to pretty much baseline with NO discernible damped wave resonance, and only the spike at the start of each wave peaking at around 14 or so Volts.

This should do, will have scope shots and diagram with instructions soon.

Paul Andrulis

[poynt99]

Paul,

i'm a little confused 

you had said before that you've seen this effect many times and it is a common occurrence.

now you're devising a fancy experiment using coils to show the effect?  i presumed by the way you were talking that showing this effect would be a snap once you got your camera working.

sorry, my confidence just went down a little.

i expected that you would be using a piece of wire just as SM said. nothing fancy, no coils, no canceled mag fields.

where and how have you seen the effect exactly?

@buzz-ard

i thought you were going to show us your kick too 

[forest]

Just two notes (untested):
- do 'make and break'  at the peak top to produce undamped oscillation
- avoid so called back EMF, if you build lenz-free device you will find something

I do not state that I know exactly what to do, these are only suggestions. I see back EMF as a waste not OU

[buzz-ard]

@jon - Excellent! You have to build to learn, and it looks as if you have taken that to heart. I'm a little curious about your circuit board - it doesn't appear to be a prototyping backplane, but instead a manufactured design. No matter - the build looks good. Keep it up!

@poynt - I don't believe I said I would post on this. My bench has been inaccessible for about two months so I haven't posted much of anything lately. (Air conditioning has been out, and in Texas that's a real problem.) But I'm anxious to get back into things, and will post some relevant scope shots soon as I'm back in the saddle. Kicks really aren't that unusual. Empirically, it's easy to experience - just turn on a stereo with the volume up and listen for the thump.

@Paul - Sorry I'm not in there with you. For Poynt's proof-of-concept, try a simple coil with at least 50 turns or more, and hit it hard. I've found that the kick is easier to see with a longer conductor. It happens too fast in just a short straight section of wire, and a bit of delay (or should I say the amount of time the pulse is in the wire) seems helpful for the scope to pick it up.

[poynt99]

@ Kicks really aren't that unusual. Empirically, it's easy to experience - just turn on a stereo with the volume up and listen for the thump.

that's just inrush current. a common thing, but not ou.

i hope we're not talking about this?