Zanzal
posted this
01 February 2019
- Last edited 01 February 2019
Thank you for your replies.
Zanzal, would you say that it's a good start for me to learn more about impedance matching, node and anti-node, etc... with this channel? : https://www.youtube.com/channel/UCop2ybGsiTYo1iyttgjNo8g
Greetings anothercat,
All sources of information can be valuable - the channel looks like it has relevant information. Anything Tesla related is very likely to have relevance.
Impedance matching is very simple idea. When you send energy down a transmission line and into a load, some of the energy will be reflected back. By matching the impedance in the load with the impedance in the transmission line you minimize the amount of energy reflected back or in other words you maximize the power into the load.
Because personally I tried to avoid radio science but I see more and more that I cannot have a free pass by taking shortcuts. I think I will need to jump into it.
A lot of successful AU inventors seem to also be radio guys. Though standing waves in wire can be used to transmit signals through the air, I'm more interesting in what gets propagated in the conductor and also in the immediate space around conductor (the dielectric-conductor boundary).
From what I seen concerning the quarter wavelength with an open wire, potential is at his maximum at the end of the line.
Yes, the oscilloscope will show an oscillating sinusoidal voltage potential of many times the original input, though if your scope is like mine it may not show anything if you have coupling set to ground (I don't know why that is, never really dug into it). If anyone has that problem they should switch coupling modes and it should fix it.
But does this potential energy at resonance represents more than the initial potential energy of the input?
The experiment I proposed only demonstrates a voltage gain, not an energy gain. Voltage gains as high as 20x are common place, but they can also be much higher or lower. I've induced such gains with input power as low as 4mW. Though the reliability on that number is low due to my equipment not being that great. For certain <20mW. I'm still researching means to convert these waves to active power. My current best efficiency is approximately 50% though to get that a large displacement current has to be generated in the transmission line. Compare that to a magnetic resonance device which is easily 100% (or more) and it seems rather low, but to me this is about knowledge as much as it is building generators.