Loop Antennas A balanced magnetic loop antenna is used to characterize the output of the Tesla coil transmitter in the form of electromagnetic radiation, i.e.,...
wireless_energy_trans...
wireless_energy_trans...
Feb 1, 2009 9:51 am
1247
Here is a link to a good reference on loops for measuring signal strength: http://www.vk1od.net/shieldedloop/index.htm Not very sensitive unfortunately. More...
... When was that? The correct phrase is: for absorbing incoming EM waves, the effective aperature of an electrically small loop antenna is greatly increased...
This feedback antenna circuit may increase sensitivity to low level 'Tesla wave' signals while at the same time minimizing the influence of stray capacitive...
Hello, I just found this group while searching for parts for my next Tesla experiment. Since this is right up my ally, I thought I would join. I started...
Hello, I just found this group while searching for parts for my next Tesla experiment. Since this is right up my ally, I thought I would join. I started...
I've used 2 operating frequencies, 750kHz and 580kHz. The primary coil is 4.5ft in diameter, the secondary is 4ft. The extra coil was 10AWG enameled copper...
Hi everyone, I've attached some pictures of my experiment. Atleast I've attached them to this email. Is there a more official way of posting pictures? ...
Hi Charlie, Thanks for the pictures and the excellent descriptions - they help to clarify your interesting setup. I think I understand why you have gotten ...
Hello Bert and Everyone, Your explanations really helped give a better view. But I don't see a difference between the currents flowing through my wire and...
Charlie: Your last two notes are very interesting are are clear enough about how you are doing your experiments. How about sending along Bert's private note?...
I didn't think Bert's message was private, it says "to:wireless_energy_transmission group". If you want I can resend it. My reply was to the group as well...
Classical electrodynamics deals with electric and magnetic fields and interactions caused by macroscopic distributions of electric charges and currents. This...
"The scientist makes use of a whole arsenal of concepts which he imbibed practically with his mother's milk; and seldom if ever is he aware of the eternally...
My secondary coil is roughly a 500 meter long AWG 14 wire and should resonate at approximately 150 kHz. I am "measuring" roughly 300 kHz with an oscilloscope...
Hi Gerhard, What is the diameter of your secondary and coil winding length, and what are you using for a topload? In addition to resonating at the fundamental...
Ed: Thanks for trying to help out. The secondary is wound on a 88 cm high wooden whiskey barrel 56 cm diameter on top and bottom, 65 cm in the middle. All iron...
Try placing the primary with the secondary (the primary near the bottom of the secondary), then exciting the secondary with a function generator at the...
Hi Gerhard, It's possible that the combination of your tank capacitor and primary winding can't be tuned low enough to be in tune with your secondary/topload....
Hello Charlie: This is good advice and I can understand the effect that the hand would have when placed near the upper half of the secondary. How would this...
Hello Charlie: This is good advice and I can understand the effect that the hand would have when placed near the upper half of the secondary. How would this...
Gerhard: I made a rough estimate of the resonant frequency of your coil, assuming the sphere was somewhat higher than you say. I get a resonant frequency of...
Ed is right, the quarter wavelength stuff just gives a really gross estimate and it all depends on the inductance and capacitance of the coil. In my first...
http://www.ttr.com/corum/index.htm See part III for a guide to measure your coil's characteristics. From Class Notes: Tesla Coils and the Failure of...
Charlie asked, 'would capacitive coupling not work in this case?' Capacitive coupling is one of the proposed mechanisms for explaining the operation of Tesla...
boxa wrote: no the inductive/capacitive effect going on does not follow the square laws of fields, thats why teslas system is alot different than basic radio...
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