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Re. IMPORTANT: RESEARCH ON WHAT?
>Original Poster: "Marco Denicolai"<Marco.Denicolai-at-tellabs.fi>
>
>To make a long story brief, I'll just tell you that the High Voltage
>Institute of Helsinki (part of the Helsinki University of Technology) is
>interested in Tesla Coils.
>
>They are going to support me financially in order to build one (or more)
>Tesla Coils and to make extensive research on it. That will constitute my
>PhD thesis.
>
>They have got facilities and measurement instruments we have always been
>dreaming about and they are researching only about high voltage and related
>topics.
>
>Having such a great opportunity I have to lay down a proposal about WHAT I
>am going to research about and here I need YOUR help, because, after all, I
>am just a beginner who has built one TC only.
>
>My questions are:
>
>1. What is still not understood about Tesla Coils and what would be worth
>investigating about? In that laboratory I am confident I could, for
>instance, measure all the parameters of a TC you have always been dreaming
>about and try to make a model of it.
I can think of two areas that are not well understood.
A) Spark gaps - Tradeoffs between single vs. multiple gaps, quenching
performance (and impact on SPARK performance), losses, different
electrode materials, airflows. There's lots of opportunity here for
modeling of arc dynamics.
B) Transformer protection networks - What the actual destructive
mechanisms are - 60 Hz high voltage vs. Tank Fres high voltage vs. zero-
crossing VHF burst high voltage vs. something still unknown. Also, I
don't believe a good understanding exists for why safety gaps at the
transformer fire independantly from the primary gap.
>2. Would it be more challenging insteas of a 2-coil TC to build and measure
>a 3-coil TC (Magnifier)?
Probably, but from a selfish perspective, there are more of us out here
on the List that would benefit from 2-coil data ;-)
>3. What you would start researchin about, if you were me?
Spark gaps.
Regards, Gary Lau
Waltham, MA USA