Re: Measuring Streamer characteristics

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi Bob,

Greg measured the streamer current for the Electrum directly from inside 
the sphere (he was INSIDE it while it was running!) with a hand held 
scope.  I have a top load sphere with fiber probes built into it.  This is 
how we came up with the 220K +1pF per foot of capacitance model for a 
streamer load.

http://hot-streamer-dot-com/TeslaCoils/MyPapers/modact/modact.html

http://hot-streamer-dot-com/TeslaCoils/MyPapers/smallar/smallar4.html

http://www.lod-dot-org/electrum/electrumspecs.html

http://www.lod-dot-org/electrum/electrumfull.jpg

Cheers,

         Terry

At 10:15 AM 9/29/2004, you wrote:
>Hi all,
>
>It would be nice to be able to visually monitor how a streamer grows  but 
>what we really need is its electrical characteristics.
>
>Suppose we took a toroid  and drilled a hole in its outer edge then 
>mounted a round ended metal rod  in the hole such that it protruded an 
>adjustable distance from the toroid surface and insulated from it.
>
>Next we add a fiber optic current probe between the rod and toroid to 
>monitor the current and add an antenna to monitor the toroid voltage. 
>Perhaps if the antenna is mounted on the opposite side to the break out 
>point it would only be weakly effected by the streamer
>
>Using this set up it should be possible to monitor the current flow in to 
>the streamer directly and adjust the break voltage.
>
>Perhaps a target can also be set up and its current flow to ground 
>monitored to check that a strike has occurred.
>
>Bob
>
>