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ISO longer sparks at less i
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From: Robert W. Stephens [SMTP:rwstephens-at-headwaters-dot-com]
Sent: Thursday, June 18, 1998 12:08 AM
To: Tesla List
Subject: Re: ISO longer sparks at less i
> From: Dale Hall [SMTP:Dale.Hall-at-trw-dot-com]
> Sent: Wednesday, June 17, 1998 9:06 PM
> To: Tesla List
> Subject: ISO longer sparks at less i
>
>
> ISO = In Search Of
>
> MultiTap_MultiGap, Multi<>Cap_Single_Tap, Multi=Cap_Multi<>Tap
>
> Progressive_Tap_MultiGap, Progressive_Tap_Gap
>
> To list:
> I am pondering methods to achieve longer spark discharges (SD) while reducing
> required input power. My theory is that a long SD's may be achieved by
> providing properly timed multiple close spaced primary energy dumps with a
> delay before the next burst. The nature of the SD's will change from hundreds
> of widely varying in length to fewer, each of a longer length thus requiring less
> overall average input power to achieve the fewer but max length SD's.
> (rates: DC=infinitely variable <1 to >20?, ac=50/60 unipol or 100/120 bipol)
>
> For the AC input case it would be nice for 2*120=2.4KW to provide SD's of 6' to
> up to 20' maybe more. I think this can be achieved. The trade off should be the
> number of cap dumps per second must be redistributed (bunched) with the
> overall number reduced. In the RSG case increasing the break rate increases
> SD length provided there is adequate input power available. At 480 bps / 60 Hz
> = 8 SD's per cycle (4 in pos cycle 4 in neg cycle) or one every 16.67/8 =
> 2.08ms which represents the time the Pri Cap has to charge before it is
> switched to the Pri inductor. The challenge is to come up with an approach that
> allows multiple closely spaced switched charges (2 for now more later) in ~10us
> up to ~1ms bursts occuring only once (all pos or all neg) or twice per cycle
> (oneof ea polarity to see if bipolarity is a factor in producing longer SD's) -
> separatedby 8.3ms or 16.7ms. The RSG implementation could be an inner row
> for the extra cap positioned to align just after the outer row breaks.
> A differential concentric adjustment scheme would be desirable.
>
> The DC input case would allow more flexibility in time between bursts allowing
> further reduction of input power vs SD length as it needn't keep step with the
> varying sine wave. Its implementation could consist of vacuum switches and
> timed electronic activation. The DC case could be set up for unipolarity or
> bipolarity. DC should permit very long SD's at very low average input power
> since the time between bursts is unconstrained.
>
> The general approach is to use two (more later) primary charge sources to allow
> two (or more) close spaced primary energy dumps. This requires two charge
> sources (NST's), two Discharge Caps of equal value and two (or more) switch
> paths to two spaced taps. The first dump at "before streamer" resonance is
> followed by a second at a little higher inductance tap (further along the turn
> = lower Fres) to account for a slightly larger Sec top capacitance streamer
> which slightly lowers Fres, corrected with a little more inductance.
> The second streamer will hopefullly build onto and enlarge the first streamer.
>
> Alternately two slightly different capacitances and two (or more) switch paths
> to the same tap could affect the same result.
>
> Unknown for either is if it is possible to switch multiple dumps of high energy
> close together without one triggering the other. Then again this coupled
> triggering might be usable and desirable in the quest for adding subsequent
> charge to the existing streamer.
>
> Has anyone tried this ? likely to ? comments ? Dale, Redondo Beach, Calif
Dale,
I think that your idea to redistribute a given quantity of input
energy in the temporal regieme to create packets of higher than
usual power/higher break rate oscillation cycles is merritorious
and deserves some experimentation. I agree that this would be easier
to implement (more experimentation room) with a DC powered system.
I would expect the "look" of the resulting streamer display to be
somewhat different than what we are used to seeing.
Great idea for experimentation!
How about we call it the ISO-9000, (In Search Of 9000 cm [~300
foot]sparks), a *much* better use of that term IMO.
He who normally considers achronyms sacred unless employed for evil,
useless and or really stupid purposes.
Robert W. Stephens
Director
Lindsay Scientific Co.
RR1 Shelburne, ON Canada L0N-1S5
Tel: 1-519-925-1771 Fax:
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