Re: Rotary gap gaps, LDPE vs. HDPE

To: tesla-at-pupman-dot-com
Subject: Re: Rotary gap gaps, LDPE vs. HDPE
From: Richard Hull <hullr-at-whitlock-dot-com>
Date: Thu, 19 Sep 1996 11:01:25 -0700

Tesla List wrote:
> 
> >From tesla-at-grendel.objinc-dot-comWed Sep 18 23:53:57 1996
> Date: Wed, 18 Sep 1996 10:00:26 +0700
> From: tesla-at-grendel.objinc-dot-com
> To: tesla-at-pupman-dot-com
> Subject: Re: Rotary gap gaps, LDPE vs. HDPE
> 
> >>>
> There is no maximum separation!  I run a very microscopic separation
> .020"!  This is very dangerous unless your rotary is very stable and has
> very fine machining.  I would imagine that .060" to .200 would be the
> norm depending on what you wanted from the system.  Close separation
> allows for series quencher gaps.  Too wide and opening forces all your
> energy to be dissapated in the electrodes of the rotary and can actually
> cause flaming.  It is a matter of trial and error.  You should always
> make the electrodes so that they can be varied of a fairly wide range.
> 
> <<<
> 
> Well, to split hairs, there is indeed a maximum separation.  I imagine that
> you have never had more than a 5" distance between the rotary and stationary
> electrodes. :-)
> 
> The question
> is really about the range of adjustment of the rotary gap.  I guess I'll
> just screw in the stationary electrode holders as far as they go, and make
> the gap in such a way that they will just collide with the moving electrodes
> when adjusted to the extreme close point.
> 
> Therefore, the range of adjustment is from 0" to about 2" on each side.
> 
> Chip


That's right, I always allow for collision adjustment of my electrodes, 
this gaurantees full range adjustment  I have never seen or heard of an 
adjustment for much more than 1/4" max.  I have a max open distance on my 
system of .2".

Richard Hull, TCBOR