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Em 08/01/2016 14:20, msweeney23@xxxxxxxxx escreveu:
Hi all, im seeing some behavior i cannot explain with my current non-pumped VDG and hoping we could start a discussion.
The machine is using a 14" steel collector and 10 ft latex belt. It is running beautifully without a traditional corona ring or opening radius due to a non-conductive corona-ring like solution i found by accident (imagine a 1 inch thick smooth rubber ring just below the collector opening).
Here is what i am seeing:
The collector charges quickly and without any leakage and spontaneously throws off hot loud discharges into empty air. The discharge starts off as a normal straight single spark for about 2-4 inches then suddenly branches off into 4 fainter thick ones reaching 10-20 inches out finally terminating in a blue 'mist'.
This is typical positive positive corona, with a straight initial
segment followed by many branches. If the sound is loud, probably they
are terminating in something nearby, forming a "failed spark", with a
"pop" sound, where a bright spark channel is not seen. Look at what
happens in the dark to see more details. It's really difficult to
photograph the phenomenon. If you look carefully at a normal spark, you
see the initial straight segment, and possibly faint lines where it
ends, one or more of them developing into the normal spark. If the
terminal were negative you would see similar formations at conductors
approximated to the terminal.