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Prototype Synchronous RSG
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From: Mark Finnis [SMTP:mefinnis-at-medicine.adelaide.edu.au]
Sent: Sunday, August 16, 1998 8:04 AM
To: tesla-at-pupman-dot-com; USA-TESLA-at-list.iex-dot-net
Subject: Prototype Synchronous RSG
G'Day ..... as we say down here
Further to last post, have finished the prototype for my syncRSG. As I was
not 100% sure the motor would be big enough, nor that my NST supply would
survive, it is only a make-shift unit.
http://www.cobweb-dot-com.au/~dkfinnis/images/rsg_prototype2.jpg
http://www.cobweb-dot-com.au/~dkfinnis/images/rsg_prototype_tips.jpg
Anyhow, has allowed me to start playing, which after all is the only real
aim of the entire exercise. Motor (plate states 1/100 HP) appears to
handle the polycarbonate disk & electrodes OK. Only 1000 rpm, so this
probably helps in terms of windage etc.
Performance is not as good as the static gap. Series copper tube gaps get
hot+++ (a fan is definitely required). The interesting part, and real
reason for this post, is the *pattern* of the discharge is quite different.
With the static gap I basically get 1 sustained streamer which roams all
over the toroid in a violent chaotic manner (explaining the nice pics of
arc waves commented on previously). With the sRSG, the absolute length of
streamers is less, but I appear to get 4-5 streamers in unison emerging
from the toroid.
(before anyone states the obvious, yes I have a bigger toroid coming!)
Presentation F for the RSG is 100 bps, as we are at 50Hz down under.
I just found this interesting / confusing ??
Also of interest (to me anyway), trying the RSG for the first time I found
out what my safety gap is for ... was out of sync and *all* firing occurred
at the safety gap.
___________________________________________________________
Mark Finnis Hm: 61 8 82895205
Staff Specialist Wk: 61 8 82224000
Intensive Care Unit Fax: 61 8 82236340
Royal Adelaide Hospital Mbl: 041 23242268
www.health.adelaide.edu.au/icu
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