Re: High Speed Streamer Pictures - Even more

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Greg Leyh <lod@xxxxxxxxxxx>

Hi Terry,

That's an impressive and clever feat of instrumentation; Congratulations!

One feature that seems to be apparent from your pics is that the 
light output of the arc is highly non-linear vs. current.  That is, 
the arc intensity seems to occur over a relatively short period of 
the current haversines.  Is that true, or am I not reading the time 
scales correctly?

-GL



> Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi,
>
> As I look though the pictures...  For streamer buildup and strike, 
> these are good ones:
>
> http://drsstc.com/~streakcam/pictures/32/PA090046b.JPG  (positive)
>
> http://drsstc.com/~streakcam/pictures/32/PA090023b.JPG  (negative)
>
> This shows a lot of "post strike" activity:
>
> http://drsstc.com/~streakcam/pictures/32/PA090039b.JPG
>
> Some show an odd 2X Fo feature usually before the main strike:
>
> http://drsstc.com/~streakcam/pictures/32/PA090024b.JPG
>
> Here is a "4X Fo" pre-strike feature:
>
> http://drsstc.com/~streakcam/pictures/32/PA090037b.JPG
>
> The current shows them up easily....
>
> Peter first found these higher than FO features...  Maybe a 2nd, 
> 3rd, 4th...  harmonic effect or something...  I think his higher 
> light sensitivity pictures show them better...  I can't keep track 
> of all my pictures, let alone his too ;-))
>
> Cheers,
>
>         Terry
>
>
> Hi All,
>
> Very busy day today!!
>
> Many questions, but not a lot of answers :o))
>
> First the easy stuff...  Peter was wondering if my Streak 
> Oscilloscope's bandwidth was "ok" since some of the readings looked 
> different than one would expect...  .....