Measuring Antenna Capacitance

Posted: 12/15/2017 4:55:53 PM

From: Berlin Germany

Joined: 4/27/2016

...not bad. And now its a small exercise for you to substitude k and a by terms with L und d. Perfect formula for this special case.  

Posted: 12/16/2017 1:24:02 PM

From: Theremin Motherland

Joined: 11/13/2005

Too few points to select realistic functional dependencies.

(for example: the behavior of parameter "a" is unclear on the interval L=0...20 cm, whether it tends to 1, or to another value)

For practical purposes (in order to obtain intermediate values of "a" and "k"), it is sufficient to have a piecewise linear interpolation or approximation by a 2-nd order polynomial (as anyone likes).

Posted: 9/5/2019 2:31:44 AM
Rachel Ye

From: Shen zhen

Joined: 8/29/2019

I think it's amazing that you come up with this idea. Hope I can have this kind of experimental spirit!

Posted: 11/12/2019 2:20:43 PM

From: Theremin Motherland

Joined: 11/13/2005

New version (v1.18) of Theremin Explorer is avalible now.

- new antenna types added : "plate" and "curved rode"  (*),
- export of curve to table,
- "disable" mode for auto-calculating of Fixed Oscillator frequency,
- "session" file to create group of curves,
- "critical value" calculations for double coil circuits,
- more configuration files -- more different theremins.

(*) Patent RU 2701449.

Posted: 11/12/2019 5:23:51 PM

From: Northern NJ, USA

Joined: 2/17/2012

Thanks ILYA!  Very nice to have tools that demystify the general BS in this field.

(It runs fine in Linux Mint via Wine!)

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