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From: Mike Poulton
Subject: Combustion-triggered spark gap?
Date: 26 Nov 2002 13:51:21 GMT
Organization: MTP Technologies
As I was thinking about electromagnetic can crushers, coin shrinkers,
and other cool devices based on monstrous capacitors, my mind turned to
the switch needed to discharge such a contraption. The websites I have
seen speak of either big metal bars (which weld themselves in place) or
triggered spark gaps. The triggered spark gap is probably the better of
the two switching methods. As I was considering how to trigger a gap
which must reliably hold off 25kV, I thought of using a flame. Picture
a vented combustion chamber with two metal balls in it, spaced an inch
or so apart. The balls are the spark gap electrodes. Fill the chamber
with a flammable mixture of propane and air, and ignite with a spark
plug. The ionized gas would conduct and cause the gap to break down and
discharge the device. Has anyone ever heard of this being done?
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