Skip to search.

Breaking News Visit Yahoo! News for the latest.

×Close this window

wireless_energy_transmission · Wireless Energy Transmission

The Yahoo! Groups Product Blog

Check it out!

Group Information

  • Members: 200
  • Category: Electrical
  • Founded: Nov 18, 2006
  • Language: English
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Real people. Real stories. See how Yahoo! Groups impacts members worldwide.

Messages

Advanced
Messages Help
Messages 1640 - 1697 of 1954   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand Author Sort by Date ^
1640 Gary Peterson
garylpeterson Send Email
Jul 7, 2011
6:38 pm
Here is a short abstract of the presentation TESLA'S WORLD WIRELESS TELECOMMUNICATIONS SYSTEM to be made at the upcoming Tesla Science Center at Wardenclyffe...
1641 Greg Leyh
lod@... Send Email
Jul 9, 2011
2:17 am
Neat... is there a webpage with more info?...
1642 Gary Peterson
garylpeterson Send Email
Jul 9, 2011
2:58 pm
CONFERENCE ON WIRELESS ENERGY When: November 5, 2011 Where: Brookhaven National Laboratory, Long Island, NY Topic: Wireless Energy The Tesla Science Center at...
1644 Thuan Yi Goh
ketaraenergy Send Email
Jul 25, 2011
2:18 am
Hi Gary, Nice to have 'met' you. My name is Goh and i'm writing you from malaysia. i have interest in the tesla technology as part of my fascination and ...
1645 Gary Peterson
garylpeterson Send Email
Jul 26, 2011
2:30 pm
Goh, ... was the ... The smale-scale Tesla wireless system demo apparatus and circuit diagram are from Konstantine Meyl. Additional images are posted at ...
1646 Charles Van Neste
cwvanneste Send Email
Jul 26, 2011
3:51 pm
Hi Gary and everyone else, I have a quick question for you Gary.  In your setup, what are you using as ground?  How deep does it go, etc.  Also, I believe...
1647 Gary Peterson
garylpeterson Send Email
Jul 26, 2011
8:06 pm
I use two independennt ground terminals, one at the transmitter, the other at the receiver. At the transmitter I have two copper bonded steel rod (5/8" x 8')...
1648 Thuan Yi Goh
ketaraenergy Send Email
Jul 28, 2011
4:10 am
and also, i'm very interested in the research you've shared by Strebkov regarding more efficient ways of transmitting power - its published in 2001 - what are...
1651 Gary Peterson
garylpeterson Send Email
Aug 3, 2011
12:30 pm
Thuan Yi Goh wrote: ". . . in Tesla's Wardenclyffe attempt . . . I believe there is one more component missing - would you know anything about that?" Can you...
1652 Thuan Yi Goh
ketaraenergy Send Email
Aug 3, 2011
2:38 pm
Hello, i cannot be sure about this, for there are many unofficial leads on the internet, but i read that what Tesla did was to also sink metal rods into the ...
1653 Gary Peterson
garylpeterson Send Email
Aug 4, 2011
4:13 am
Do you know anything about this? A. Yes. You see the underground work is one of the most expensive parts of the tower. In this system that I have invented it...
1654 Rick
r.saunders1706 Send Email
Aug 5, 2011
4:38 pm
We know in theory that the overall resistance of the earth is small compared with that of a metal such as copper. To obtain a pair of low-resistance ground...
1655 Charles Van Neste
cwvanneste Send Email
Aug 6, 2011
1:35 am
Well said Rick.  This is why in transmission sub stations they will take a wire mess and bury it under the ground, then hammer rods deeper into the ground all...
1656 Rick
r.saunders1706 Send Email
Aug 6, 2011
2:52 pm
The two ground terminals are to be installed at the bottom of 120-foot deep shafts excavated or drilled directly below the elevated terminal support...
1657 Gary Peterson
garylpeterson Send Email
Aug 7, 2011
6:23 pm
Charles, Why would 30 shallow ground rods work better than a single deep one of equivalent contact surface area? It seems to me the use of multiple shallow...
1658 Charles Van Neste
cwvanneste Send Email
Aug 8, 2011
6:49 pm
I was just talking about the surface area of the ground.  More surface area would be better than a deeper ground.  Ideally though I would think you would...
1659 Gary Peterson
garylpeterson Send Email
Aug 9, 2011
5:37 pm
Charles wrote: "More surface area would be better than a deeper ground." This would only be true if the structure were intended to launch radio waves, that is...
1661 infinitegoldenbraid
infinitegold... Send Email
Aug 10, 2011
8:39 pm
What Rick and Gary have shared on the subject of grounding is insightful and theoretically correct, and is pointing in the right direction for the practical...
1686 Gary Peterson
garylpeterson Send Email
Aug 25, 2011
6:54 pm
Is there a webpage with more info? Yes, at http://events.r20.constantcontact.com/register/event?llr=qi4icbhab&oeidk&#92; =a07e4l3ala05b707f08 ...
1687 Charles Van Neste
cwvanneste Send Email
Sep 3, 2011
6:22 am
Hello everyone, I have a question about the secondary of a Tesla coil.  I keep seeing in many places that the secondary has an aspect ratio that is very long...
1688 Bert Hickman
bert_hickman Send Email
Sep 3, 2011
1:49 pm
Hi Charles, The peak output voltage is proportional to sqrt(Lsec/Lpri), so there is some advantage to using a high secondary inductance. However, "candlestick&quot;...
1689 Gary Peterson
garylpeterson Send Email
Sep 3, 2011
3:39 pm
Bert, You wrote, ""candlestick"; coils tend to be inefficient" and of "a balancing act [being required] to arrive at optimal performance." How do you gauge...
1690 Bert Hickman
bert_hickman Send Email
Sep 3, 2011
4:10 pm
Hi Gary, ... Yes. However, the lower Q of candlestick coils will introduce higher system losses than larger diameter, shorter length coils. So, I suspect that ...
1691 Charles Van Neste
cwvanneste Send Email
Sep 3, 2011
5:05 pm
Hi Bert, So basically the longer coils are to keep the high voltage top away from the base and to reduce coupling with the primary at the expense of some lost...
1692 Gary Peterson
garylpeterson Send Email
Sep 3, 2011
5:47 pm
Bert, You wrote, "I suspect [candlestick coils] would also be less efficient even for non-sparking, intentionally radiating systems." Once again, how do you...
1693 Charles Van Neste
cwvanneste Send Email
Sep 3, 2011
6:00 pm
Hi Gary, I was taking Bert's comments as the voltage magnification efficiency (not power input).  So if you input 10 Volts, a secondary that generates 10,000...
1694 Bert Hickman
bert_hickman Send Email
Sep 3, 2011
8:20 pm
Higher Efficiency simply means lower loss. All other things being the same, a higher Q coil in a resonant circuit with the same inductance will lose less...
1695 Gary Peterson
garylpeterson Send Email
Sep 3, 2011
9:37 pm
Bert, Charles' original question was, "I keep seeing in many places that the secondary has an aspect ratio that is very long compared to its diameter. What is...
1696 Bert Hickman
bert_hickman Send Email
Sep 3, 2011
10:28 pm
Hi Charles, The difference is whether you are exciting the secondary from a continuous or quasi-continuous source of RF (such as a solid state or vacuum tube...
1697 Charles Van Neste
cwvanneste Send Email
Sep 3, 2011
11:07 pm
Thanks Bert.  All the system's I've used were CW so that makes sense. Charles ________________________________ From: Bert Hickman <bert.hickman@...> ...
Messages 1640 - 1697 of 1954   Oldest  |  < Older  |  Newer >  |  Newest
Add to My Yahoo!      XML What's This?

Copyright © 2010 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines NEW - Help