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RE: different antennas
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Author:
Thierry Frenkel
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Time:
10.03.2008 23:29
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Text:
> hi
> i'm a pupil in bavaria, germany and in my final year at
> school i have to write a scientific text about a topic that
> has to do with one of our specialized courses (some call it
> "termpaper", in german it's "Facharbeit"). and because i'm
> a musician and one of my specialized courses is physics, i
> have decided to take the theremin as my topic.
>
> i've almost finished my text, but there remain some
> essential questions i have to clarify.
>
> one of them is: which effects have different shapes of
> antennas? why have most theremins a stick as
> pitch-controlling antenna and an arc as volume-controlling
> antenna?
>
> thankfully i'm looking forward to your answers!
An arc gives a greater electrical capacity and a closer elcromagnetic field, so that you need less movement in order to control volume. With lesser movement there is also less risk to disturb the pitch field.
Since one wants a extended pitch field to allow accurate playing over 5 or more octaves, an antenna in stick form is better because of its lesser capacity and the resulting bigger electromagnetic field.
If you have further technical theremin-related questions, you may send me an email on frenkel(dot)thierry(at)orange(dot)fr
I'd prefer if you write in German , since my English is very bad and I'll be able to give better explanations in French or German.
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Max Wolf
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21.01.2008 01:30
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Thierry Frenkel
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10.03.2008 23:29
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