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Re: Rotary Spark gap and Tesla Magnifier System
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Rotary Spark gap and Tesla Magnifier System
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From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
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Date: Mon, 25 Mar 1996 15:28:10 +1200
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>Received: from rata.vuw.ac.nz (root-at-rata.vuw.ac.nz [130.195.2.11]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id UAA15392 for <tesla-at-grendel.objinc-dot-com>; Sun, 24 Mar 1996 20:28:32 -0700
Hi all,
I was interested to see this from Richard Hull...
> That is correct guys, The series rotary type gap we developed a few years
> back is perfect for magnifier work. It is lousy for two coil systems
> though, as it quenches too fast!! It has become the mainstay of our
> magnifier work here in Richmond. The gap is the weakest point in any Tesla
> system. Most folks never quite get it right. The magnifier demands heroic
> efforts in this area with common couplings of 0.5 or more!
I am currently building such a gap for use with 2 and 3 coil systems.
The intention is to add in as many series poles as the number of disk
electrodes will allow to reduce dwell time while keeping BPS constant
(given a constant disk speed). The wheel will have 12 rotating
contacts allowing for a maximum of 24 series gaps.
I have scoped and calculated a 2-coil system I have as needing an
optimum quench time of 25uS (k about 0.12) but have not yet had the
luxury of reducing quench time to this optimum. I was wondering, can
you give us some details of your gap system and some idea of the
quench times it can allow please?
Malcolm