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Magnetic quenched gaps
From: NTesla[SMTP:ntesla-at-ntesla.csd.sc.edu]
Sent: Tuesday, September 23, 1997 7:36 PM
To: tesla-at-pupman-dot-com
Subject: Magnetic quenched gaps
>Tesla List wrote:
>>
>> From: Greg Leyh[SMTP:lod-at-pacbell-dot-net]
>> Sent: Monday, September 22, 1997 5:35 PM
>> To: Tesla List
>> Subject: Re: FW: Magnetic quenched gaps
>>
>> David Huffman wrote:
>>
>> > I have a question/problem with magnetic quenching. I can see how the
>> > magnetic field can divert the arc in the gap and will cause it to
>> > extinguish sooner then it would without the magnet. During the time
>> > when the energy is mostly in the secondary (notch) and the gap is
>> > filled with ions with relatively little movement, the magnetic field
>> > applies very little force (F = qvB) on the stuff you want to remove
>> > from the gap. It would seem that an air blast would work as good or
>> > better since to be effective the field needs to be very large.
>>
>> The air blast definitely needs to be supersonic, if it is to displace
>> the entire gap volume in the 10's of microseconds allotted.
>> But such a blast is a double-edged sword, as it will drastically affect
>> the high current period of the arc, which should not be disturbed.
>> I suppose it's a matter of whether the gap needs so much help quenching
>> that it's worth it to reduce the gap performance somewhat.
>>
>> -GL
>
>
>Hmmm.."what if" a synchroized motor driving a piston compressor?
>I guess the inertial lag of the air column would prevent it
>accellerating supersonic......or would the motor need to be
>extremely large to stay synchronous with such a load? Just food for
>thought.
>Randy
Hmmm...just off the top of my head, what about forcing compressed air
through some sort of impeller, with the fins being the same number as the
number of gaps on the spark gap? The idea is to get pulses of air, sort of
the same way the water is pulsed in a shower massage. The compressed
air-pressure would determine the speed of the air-pulses, and if timed
correctly to synch with the rotary gap, might that not eliminate the
"misfire" condition, while still allowing first-notch quenching?
Just a thought,
Dan