Originally posted by orgonaut314
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Eric Dollard
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http://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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Originally posted by orgonaut314 View PostI have one question. Did anyone measure the magnetic field on the secondary coil and was it maximum at the top? It should be if the longitudional network is right but I never measured. Thanks.
Ok done a measurement and indeed the magnetic field is stronger on the last loop of the coil
New Extra Coil #3 + 20% 20 turn secondary
New Extra Coil #3 + 15% 17 turn secondary
Tuned secondary
Free secondary
Last edited by dR-Green; 06-16-2015, 11:38 PM.http://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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That is strange. In your case the magnetic field is lowest at the top of the secondary coil.
I restudied the longitudional simulation and it shows the current is most at the last coil. For details I had to multiply the coils current by 1/2 exept the last coil because the simulation did not allow two equal coils parallel. So you see in the picture a rising current from L2 till 2*L5. I zoomed in on the highest resonance.
Last edited by orgonaut314; 06-17-2015, 09:21 AM.
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Another two pictures. This time a simulation of the Tesla coil as a network. Eric calls it the shunt concatenated network. You see the mutual capacitances on top and the mutual inductance as the first coils left. The rest is the transversal transmission line. Don't mind the resistors they are there for the simulator only.
The voltage seems stronger with 4 elements and the same 0,7V input. It has the same type of resonance as the longitudional network.
Looks like this one:
Has someone measured the complete frequency spectre with his Tesla coil? DrGreen?Last edited by orgonaut314; 06-17-2015, 11:16 AM.
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Originally posted by orgonaut314 View PostWhen I measure the magnetic field on the secondary like this it rises from bottom till the top ring. Could you confirm this?
http://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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Originally posted by orgonaut314 View PostHas someone measured the complete frequency spectre with his Tesla coil?
From http://www.energeticforum.com/203695-post7.html
And http://www.energeticforum.com/204220-post12.htmlhttp://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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Hi drGreen I just did a complete measurement of resonance of the secondary. I measured with only the primary as a loop to my solid state frequency generator no tank capacitor.
very small peak at:
0.925MHz
something bigger peak at:
1.390MHz
I measured the very large peak at
2.766MHz
There is no resonance above this. I cannot plot the vallues because my nanoamp meter goes over the max when I have amplification that I can only just see the other peaks.
So they rise like the longitudional network just like Eric said. I included the tekst where Eric says literally that the Tesla coil is the shunt concatenated line (point a) that I simulated in the earlier post.
This is very strange. Your resonance seems a typical transversal resonance where current and voltage are out of fase, a halve wave resonance. Strange I have no explanantion. My coil is grounded and has an elevated capacity.
Last edited by orgonaut314; 07-17-2015, 09:45 AM.
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I measure the resonance with the meter on top, metallic connection. The argon tube works like an elevated cap. I found it very easy to pick up the wrong radiation in the past during measurements.
Last edited by orgonaut314; 06-20-2015, 10:48 PM.
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This is how it was determined that the coils are not in concatenated resonance at the design frequency (or thereabouts). The 3095 kc distribution shows a typical 1/4 wavelength over both coils as one.
The spectrum isn't the same as the coil's resonant frequencies. The spectrum shows the harmonics that are produced when the coil is driven at a certain frequency. There's another set of harmonics if you drive it at another resonant frequency.
Spectrum when primary is driven at 3892 kc
Spectrum when primary is driven at 1742.5 kc
http://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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Originally posted by orgonaut314 View PostI measure the resonance with the meter on top, metallic connection. The argon tube works like an elevated cap. I found it very easy to pick up the wrong radiation in the past during measurements.http://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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Yes true the resonance was 3,2MHz without the contact measurement but this way I am sure I measure the right point on the top of the coil for maximum radiation. I do not completely understand your spectrum and I do not think measuring without contact will change my spectrum. Perhaps with the extra coil you have a halve wave resonance with different harmonics?Last edited by orgonaut314; 06-17-2015, 05:16 PM.
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Originally posted by orgonaut314 View PostYes true the resonance was 3,2MHz without the contact measurement but this way I am sure I measure the right point on the top of the coil for maximum radiation. I do not completely understand your spectrum and I do not think measuring without contact will change my spectrum. Perhaps with the extra coil you have a halve wave resonance with different harmonics?
https://en.wikipedia.org/wiki/Frequency_spectrum
Like a piano note playing, you hear the pitch as the fundamental frequency, or the strongest frequency. But the "sound" which you recognise as a piano note consists of countless different harmonics/frequencies. If you remove all the harmonics from a piano note, or any instrument playing a continuous note, then you essentially end up with a pure sine tone at the fundamental frequency which sounds nothing like a piano. So a spectrum analyser simply shows you all the frequencies that combine to make up that sound, or whatever it is you are measuring. You can then reconstruct the sound simply through putting sine waves together in the same frequency relationships and amplitudes as was originally measured.
Harmonics - Sine, Square & PWM - YouTubehttp://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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Hi did you see this video where Eric explains transversal and longitudional analoques and how the harmonics are reversed in longitudional and how electric and manetic field are in fase?
https://m.youtube.com/watch?v=6BnCUBKgnnc
I have the feeling you don't understand what I tried to say?Last edited by orgonaut314; 06-17-2015, 10:51 PM.
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Originally posted by orgonaut314 View PostHi did you see this video where Eric explains transversal and longitudional analoques and how the harmonics are reversed in longitudional and how electric and manetic field are in fase?
https://m.youtube.com/watch?v=6BnCUBKgnnc
I have the feeling you don't understand what I tried to say?
The spectrum produced by the coil(s) is the spectrum measured and shown. They are different when the coils are tuned differently and have different resonant frequencies.http://www.teslascientific.com/
"Knowledge is cosmic. It does not evolve or unfold in man. Man unfolds to an awareness of it. He gradually discovers it." - Walter Russell
"Once men died for Truth, but now Truth dies at the hands of men." - Manly P. Hall
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