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Overunity Machines Forum



Richard VIALLE's new theory about negative mass and overunity

Started by Pascuser, August 28, 2012, 07:03:17 PM

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zgreudz

Hi Verpies,

since you took the time to answer directly to the info I provided to Khwartz, I will answer to you directly. But as I told Khwartz by PM I have no time to spend in discussions on this forum, by lack of time, not by lack of interest. Furthermore, I have no will to argue for or against the subjects that are raised by Khwartz (not me) or by any other members, about the reality of the effects of RV theory. My own personnal belief is that the most probable overunity measurement comes from measurement errors. This does not prevent a rigorous study of the phenomena, there is always an occasion to learn something  :)

For Khwartz: please do not put me anymore in such situation, where I am kind of forced (by sheer politeness) to answer on your behalf. Thanks for your understanding.

By the way, my speciality is metrology at LOW frequency at very high precision (FemtoFarads, nanometers) , but not RF measurement. So by using some methods I am familliar whith, I may miss some big issue an RF engineer could see immediately.  :)

This will be my last replie for a long time I guess.  :)

So now back to the technical points:


Quote from: verpies on February 09, 2014, 10:29:02 AM
Sure
In some cases yes, but it can be a good method, especially if the RMS values refer to pure sine current and voltage waveforms and the phase offset is constant.

Also, multiplying URMS * IRMS * cos(Φ) is not the only method for measuring power with a scope.
The other method is quickly sampling and multiplying instantaneous values of current and voltage instead of calculating the RMS values of each component and multiplying them.  This method is immune to variable phase offsets and non-sinusoidal waveforms.
If the spectral purity of current and voltage waveforms has been verified by some kind of spectrum analyzer than it is acceptable proof that  that they indeed are pure. 
Eyeballing sine waves on a time-domain display does not ensure their purity above 4-bits of ENOB.  e.g. see this video.
Curve fitting assumes a certain form of the signal - it does not verify that form.
If the spectral purity has been verified in pt.1 & 2 then analytic sine curve fitting is appropriate.  If not - then it is not.

A more universal method of power measurement (independent of the waveform shape and phase shift) is to sample the current and voltage SIMULTANEOUSLY (at maximum ENOB of those ADCs) at high rate and multiply the instantaneous values for each sample pair.  Finally sum and divide the results of these multiplications to calculate the arithmetic mean.
At these sampling rates, I have no doubt that the horizontal resolution is sufficient for a signal having no more than 5MHz of harmonic content.  However, this information provides no data about the vertical quantization errors during these measurements.
Just because the scope samples at 2.5Gs/s does not mean that its internal RMS calculators run at this frequency and they make their internal calculations with ENOB2 precision (and that all of the ADC bits are even used) .  Do they, are they? 

For example, take a look at this guy - his was using a scope with 8-bit ADCs but was using only 2-bits of them, in one extreme case !!!  If his internal RMS calculator had calculated an RMS value based on this data, then the result would be worthless even if he fed his scope with pure sine waves.

Also, if sampling and multiplying instantaneous values of current and voltage was implemented instead of calculating the RMS values of each component, would this scope sample both channels simultaneously and multiply each sample pair at 2.5G multiplications per second in order to create the values for its "Math Channel" ?  (a.k.a. the instantaneous power channel).
Finally how does this scope calculate the arithmetical mean of this Math Channel?  Does it sum all the samples and divide them? With what internal precision and over how many samples?

Actually, I tried everything: I don't thrust too much scope's calculations so I used it as a data sampler. I did some FFT on the sampled data (via LTSpice by replaying the data), mostly for the GEGENE project because here the signal where really shitty. For the  RV U I calculated the data with an Excel spreadsheet and analysed the residues (difference beteween model and data). I think you make a point by suggesting that the sampling might be not simultaneous on the scope I have. I had the same doubt and I checked the data logging by using two different channels to test the same signal. I have not documented everything though. You can have a look (pardon my French ) at http://www.conspirovniscience.com/forum/index.php?showtopic=961&view=findpost&p=24626 and here for the GEGENE: http://www.conspirovniscience.com/forum/index.php?showtopic=1040&view=findpost&p=27533

Quote from: verpies
I have a difficulty comprehending this statement. 
Are those"raw samples' , numerical samples downloaded from the ADCs to a computer and then an RMS calculation is being performed on them there?

Yes,as I sait I prefer to work on numerical data ('"raw sample"), directly downloaded from scope and then do my own cooking. But sometimes it is handy to have an eye on the scopes measurements on screen, so I just checked them agains the raw data.

Quote
Does "aselfic" = non-inductive ?

Yep, sorry for the french garbled jargon. ;-)

Quote
So what is the measured resistance and inductance of this non-inductive current sensing resistor (CSR)?  At what frequency did the HP4784A measure the inductance of this resistor?
I did not read about these early tests if they were described in French.
Is the current probe inserted before or after the voltage measuring point (relative to the power source) ?

Indeed HP4784A is a low frequency device, limited to 1MHz, and I made the tests on components at 100kHz whith this device and compared the results on the measured components with the probe at 5MHz and 100kHz without significant dispersion. So yet it qualifies exactly the probe at 100kHz not 5MHz, but the component I used (R+L+C) are rather calm between 100k and 10MHz, resonnant frequencies are more in the 250MHz domain....  If you don'y mind reading some French, I think I put it on the link: http://www.conspirovniscience.com/forum/index.php?showtopic=961&view=findpost&p=24655 and mostly here:http://www.conspirovniscience.com/forum/index.php?showtopic=961&view=findpost&p=24860

Quote
The power transmission by stray capacitances and unexpected mutual inductances as well as EM really worries me.
Were those stray energy transfer paths measured at the operating frequency or much lower?
Where can I see the "distributed model" together with the values of these stray capacitances and mutual inductances? 
I know the JL Naudin has made similar measurements of those stray paths, but I lost the link to his article about it.

I put the model here (essentially it is only the library component for LTSpice and how to use it): http://www.conspirovniscience.com/forum/index.php?showtopic=974&view=findpost&p=24914 The data measurement are here: http://www.conspirovniscience.com/forum/index.php?showtopic=961&view=findpost&p=24923. I think I made all measurement at 100k but here we are dealing with 1nF...
I analyzed JLN data and they were bizarre (Capacitance values he measured were non physical, like association of 3 caps in triangle/star configuaration that needs a negative capacitance to give the measured results, this kind of stuff. I think his LCR meter was probably the cause)

verpies

Quote from: tim123 on February 08, 2014, 11:37:45 AM
and it's not a pure wave either.
Whaddaya mean it's not pure? 
Did you follow the guidelines outlined in the datasheet for using this comparator?
This comparator is used to convert a filtered sine wave into a square wave (...in effect: analog to digital).

Quote from: tim123 on February 08, 2014, 11:37:45 AM
- It has 2 pins that output a sine-wave at 2.5v Pk
If you need to amplify this analog sine wave output then use a strong op-amp or another type of analog amplifier.

Quote from: tim123 on February 08, 2014, 11:37:45 AM
- It has 2 pins (from the comparator) that output a 4.5v square wave
If obtaining a rectangular waveform is your goal, then you can use this digital output directly or to drive a digital amplifier.

Quote from: tim123 on February 08, 2014, 11:37:45 AM
Can anyone tell me how I should connect the DDS to the transistor?  :-\
You can connect this output resistively/directly to a JFET or BJT parts ...but not to most MOSFETs :)

Quote from: tim123 on February 08, 2014, 11:37:45 AM
...and I'd like to use that to drive my MOSFET.
Some logic-level MOSFET's gates can be driven by only 4V, but not many. 
For most Power MOSFETs you need a strong digital gate driver like the UCC27511.

Remember to set the right goals for your design:
Do you want an analog amplification or a digital amplification?
Do you want to amplify the output current or voltage or both (power) ?

P.S.
Most optocouplers cannot handle >1MHz signals and analog signals.
Transformers cannot handle DC nor low frequencies and high frequencies at the same time.

tim123

Quote from: verpies on February 09, 2014, 12:46:47 PM
Whaddaya mean it's not pure? 
Did you follow the guidelines outlined in the datasheet for using this comparator?
Hi Verpies,
  It's not pure if I connect it up wrong ;) - at least - that's how it looks on my DSO scope - it may be a sampling artifact...

Thanks for the info. a 'Gate Driver' is exactly what i need. I just didn't know it. :)

What I'm trying to do is drive an IRF450 mosfet from a sig-gen. The IRF450 really wants a 10v square wave.

I figured out that a differential amp might do it... And I got some cheap optos which do 10MBs - but only 5.5v...

The UCC27511 only seems to be available as SMD - not DIP... I can get a UCC27524P though...

Thanks again
Regards, Tim

tim123

Quote from: Khwartz on February 09, 2014, 11:16:56 AM
Dear tim, would it be possible for you to copy paste the verpies's previous post in "my" ex-proxithread with here, in COS, and ask if "someone" will have the kindness to invest too the time needed to specify each point on a futher level, so that we could stabilise each item up to a possible and wishfully standard procedure for each item, that then each of us could follow with good confidence?

Hi Khwartz,
  while I am somewhat in awe of Verpies understanding of, and his clear enumeration of the issues involved in these measurements, I'm not sure that presenting them to COS is the right thing to do...

If they were my questions, I would, of course. But Verpies is not doing a replication as far as I'm aware, and his questions - I believe - were rhetorical. He is not seeking answers to thse questions, and nor am I - at least - not today.

At the moment, I'm not at the stage where I need to know the answers the verpies questions, but if i get to that stage, and i think that it would help - i will ask the COS guys...

Pascal seems to be very frustrated with the whole project. It seems that despite his hard work he has been unable to replicate the effect. Perhaps he has given up on it. I think there is no 'right' way for the replication. If there was, Pascal would be happy...

I do think that there *is* something to be discovered in the general arrangement of: feeding signals into masses... Keely acheived OU & antigrav & more - all using sound, and for some reason, M. Vialle's generator reminds me of Keely's work... John Hutchison's HF anti-grav too...

I think it's remarkable that the speed of sound in 1m copper (3.6Km/s) is *exactly about* (It's a scientific term ;)) 1000 times less than the Vialle resonance... That is spooky. :)

So, what I'm saying is: as the right way to build or drive the device has not yet been found, we can't expect to follow a formula... We have to use our imagination and knowledge, and just try stuff out...

:)
Tim

verpies

Quote from: tim123 on February 09, 2014, 01:37:18 PM
The UCC27511 only seems to be available as SMD - not DIP... I can get a UCC27524P though...
UCC27524P does not have differential inputs nor independent source/sink outputs and is weaker than the UCC27511.
You do not need a DIP anyway, the SMD driver can be glued to the Power MOSFET because it needs to be very close to the MOSFET's gate terminal. 
See how closely Itsu had mounted his SMD driver to the transistor in this video.