Pulsed DC Transformer with Embedded Magnets

[XS-NRG]

hmmm....... like this post..

I like it too Clow...i mean Poit

[Poit]

I like it too Clow...i mean Poit

Wheres my troll certificate damn it!! I feel so left out

[MasterPlaster]

Wheres my troll certificate damn it!! I feel so left out

OK, all those who want to get their TROL certificate must join the club first:
http://www.youtube.com/watch?v=tdbt-sx5MDc&feature=related

[TinselKoala]

Oscilloscopes as we use them are often thought of as qualitative instruments; we look at waveshapes and make rough estimates of frequencies just by eyeballing, most of the time.

But let's not forget that the oscilloscope is actually a QUANTITATIVE instrument, and when used correctly can give a lot more information than is commonly realized.

Even a relatively low-bandwidth analog scope can be used to good advantage if it's understood. Of course, a 2-channel instrument is necessary, but most scopes that actually function have at least 2 channels.

(There's a difference between a dual-channel scope and a true dual-beam scope, but we won't go into that just yet.)

So, even if your scope can't do the fancy math functions like trace multiplication and integration over time, you can still get the same data from it, with a little paperwork and creativity.

Say you want to measure the energy output over a period of time from a common Joule Thief, but all you've got is a 2-channel analog scope, some ordinary 100 MHz 10x attenuated probes, some graph paper, and a pencil.

First you need to calibrate the scope and the probes. The scope will have a "calibration" thingie on it somewhere, that puts out a square wave at a specific frequency and voltage. You hook your probe up to that, and then tweak the "calibration" fine tuning knobs on the vertical amp (voltage) and the timebase until the trace you see is right on the correct graticle lines for the calibration voltage/frequency. Then you tweak the little variable cap in the probe itself until you get the best-looking square wave from the calibrator. Now you are ready to take some measurements !!

Now you want to monitor voltage across the load on one channel and the voltage DROP across a low-value current-viewing resistor on the other channel. Use a value like 0.1 Ohm, and be careful about your ground (common) probe hookups. By Ohm's law, you can then read Amps instead of Volts on the scope's vertical scale for that channel. Check your math ! so you know that a graticle division corresponds to so many milliamps, etc. I usually put masking tape labels for the settings I'm using on the scope so I don't get (too) confused.

Now display at least 2 complete waveforms, but not more than 4. Set your zero references carefully to some convenient mark on the graticle (ground the probe tip or select "ground" on the coupling switch, this will give you that channel's "zero" voltage line).
Over two complete cycles, at each minor horizontal graticle division, write down the voltage and current values from the two scope traces. You will wind up with  2 columns, voltage and current at 40 or 50 time clicks. Now multiply the values at each time click to give "instantaneous power", sort of. Graph this result carefully on decent graph paper that has small squares that you can count.

You have drawn, of course, an approximation of an instantaneous power curve, and now..... by adding up the graph paper squares enclosed by the power curve .... you can approximate the energy integral over the time represented by your two cycles. The vertical axis represents power in Watts of course and the horizontal is time, so each minor square's volume represents some portion of a Joule, depending on the scaling. The area under the power curve represents energy.

If you have access to a precision laboratory balance you can cut out the instantaneous power curve and weigh it.

Depending on how careful you are, you can get very close to the true value of the energy integral using this method.

Close enough to tell the difference between a COP < 1 and a COP = 280, certainly. Or even COP >17. (LOL)

Of course, if you like, you can all omit measurements altogether and just continue trolling along, I don't mind.

[quarktoo]

yes, by intent or not it's worse. quark2 needs to either grow a thicker skin or adjust
his sensitivity to people saying things other than what he expects/wants from them.

flashes of brilliance seen through the smoke of doom. go figure.

tak

Since you seem to have difficulty following along, I'll try and compile a little snapshot of what happened.

1. I asked him to explain the amplification of the speed of voltage. When presented with this super basic question about electricity, physics professors run for the ban button because it crushes their magical understanding of what produces electricity and opens the floodgates for ideas on how to produce OU devices.

2. Rather than answer the question, he attempted to pander to me and then argue the question was opaque - I.e., If you can't defend your case, attack the law.

3. Then he attempted to use higher order thinking by asking a complex question that very few people could understand in an attempt to destroy my credibility.

I not only answered his question but handed him his ass on a silver platter by telling him how to wind the coil (Rodin coil) and explained why it works which seems to puzzle scientists. I even went so far as to explain how the arc of the covenant works at a scientific level which nobody in the history of Earth has ever done. I and many Jewish Rabbi's would consider that knowledge sacred. My writing is like the layers of the onion, you need to look beyond the first layer if you can.

4. When he saw that happen, he went back and changed the question from a toroid question to cylinder magnet question. At this point, my psychic ability (TheBuzz notified me from the heavens) told me to go back and check his post for changes. I spotted the change 3 pages back. The Gods told me to wait for him to post his deception and then upload the screen shots I had taken and take him down hard. I instead posted some screen shots and washed my hands of him right then and there.

It was after my post that he went back and changed that. Then he most likely went into Profile -> look and layout and changed his time offset to claim his edits occurred prior to my post.

I was not born yesterday tak22. I have an IQ just slightly above average. I also have TheBuzz talking to me from the heavens. Even without without the benefit of a gold star that Ramset apparently stole a year ago, TheBuzz (SaintBuzz to his friends) was able to see that evil without out even descending and doing the deed himself. (hates frozen hells) TheBuzz is a protector and that is what the troll society offers its members.

I don't think you understand what you are dealing with here tak22. TheBuzz can create and destroy with a thought and has proven that many times before credible witnesses. He can see through time and space into the future.

If you are smart, you will be careful how you treat his messiah. Not a threat, just good advice my friend. My skin is plenty thick evidenced from the fact that I laughed harder today than I have in 10 years or more, have been banned from OU 8 times in 10 years and still come back for a laugh now and then.

I expose posers that are trying to profit from those that have lesser minds, That is something I do FOR the web site - a hobby.

If you think this or any other interweb site means something to me, you don't get something. This is entertainment for someone who is obviously incredibly bored.

Speaking of bored, now I am bored with you and this thread.

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