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Re: How should we measure coil efficiency, was neon vs. potent
From: John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
Sent: Wednesday, July 30, 1997 12:49 AM
To: Tesla List
Subject: Re: How should we measure coil efficiency, was neon vs. potent
At 04:33 AM 7/28/97 +0000, you wrote:
>
>From: Alfred A. Skrocki[SMTP:alfred.skrocki-at-cybernetworking-dot-com]
>Reply To: alfred.skrocki-at-cybernetworking-dot-com
>Sent: Saturday, July 26, 1997 1:37 PM
>To: Tesla List
>Subject: Re: How should we measure coil efficiency, was neon vs. potent
>
--------------------------------------------------
Alfred -
There is no contradiction because I have said several times in the past
that the spark length test and the efficiency test are two completely
different tests. The reason is because the efficiency requires finding the
output energy and spark length cannot be converted into energy. The energy
for that one special long spark cannot be measured out of a group of 120 or
more sparks per second.
Tesla coils appear to have an optimum operating frequency because small
coils use high op freqs and large coils use low op freqs. This implies that
a certain size coil would have an optimum op freq. This means that a coil
could be improved by increasing it's op freq if it is operating at a freq
below it's optimum and vice versa.
Some coilers are now saying that a smaller pri cap and more pri turns are
better compared to past coils. That appears to be contrary to the fact that
more energy can be stored in a larger pri cap. At present we do not know
enough about how a TC operates to know which way to go.
Selecting an operating frequency is at present an arbitrary choice and the
builder cannot explain why he has chosen a particular freq for his coil. It
is important that he pick the optimum op freq to get the most from his coil.
Note that in developing a TC computer program like the JHCTES an optimum
op freq for the power input selected must be determined because many
parameters depend on this freq. The JHCTES method of finding the optimum op
freq cannot be compared with other methods because I have not heard of
anyone who has worked out a method.
Comments welcomed.
John Couture
------------------------------------------------
>John you seem to be contradicting yourself here since you are the one
>who suggested that we use spark length as part of the determination
>of coil efficiency. Please explain.
>
> Sincerely
>
> \\\|///
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> ( -at- -at- )
> -----o00o-(_)-o00o-----
> Alfred A. Skrocki
> alfred.skrocki-at-cybernetworking-dot-com
> .ooo0 0ooo.
> -----( )---( )-----
> \ ( ) /
> \_) (_/
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