# Re: TC Empirical Design (fwd)

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---------- Forwarded message ----------
Date: Mon, 15 Dec 1997 21:05:03 +1100
From: Peter Electric <elekessy-at-macquarie.matra-dot-com.au>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: TC Empirical Design

You have mentioned this program many times before and it sounds very
usefull. The only thing you haven't mentioned is how we get a copy?

Cheers,

Peter E.

Tesla List wrote:

> From:   John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
> Sent:   Saturday, December 13, 1997 5:11 PM
> To:     tesla-at-pupman-dot-com
> Subject:        TC Empirical Design
>
>   From the comments that have been made on the Tesla List it appears
> that
> empirical design is a confusing process. For example, it is not a
> theoretical modeling process. It is a modeling process based on real
> world
> data from actual coil building and testing by Tesla coilers.
>
>   Most people are not familiar with empirical design because it is not
>
> taught in schools. There are many reasons for this including the fact
> that
> it is a very specialized subject (making fuse time/current curves,
> automobile miles per gallon, TC watts per foot of spark, aircraft
> carriers,
> etc.).
>
>   All complex engineering projects must be designed empirically
> including
> Tesla coil design. In brief, for TCs this is implemented by collecting
> test
> data from real world coils, such as "input watts per foot of spark".
> If this
> data covers a range from 10 watts to 10 000 watts it is possible to
> find an
> equation by mathematical regression (standard engineering) that will
> give
> the "input watts per foot of spark" for all values within this range
> and
> even beyond.
>
>   This is modeling based on real world coils. Note that this is not an
>
> optimizing process. It is a process for designing a typical TC system
> with a
> high percentage of success. Optimizing is then a matter of adjustments
> which
> can be later added to the empirical data to design better coils.
>
>  The JHCTES TC computer program has been developed using empirical
> design.
> This program leaves much to be desired. However, there are no other
> programs
> like it available at present so comparisons cannot be made. This
> program
> coordinates 46 TC parameters and automatically changes the appropiate
> parameters to keep the system in tune when "what if" changes are made.
> The
> JHCTES program is for classical coils only. No one has even attempted
> to
> develop a program of this type for magnifiers, tubes, hybrids, etc.
>
>   There is enough help available at present for designing and building
> a
> classical TC that no one should end up with a coil that does not work
> when
> first energized. The Tesla List has been the most influential in
> making this
> possible.
>
>   John Couture

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