Flat Ribbon Primary Inductance Calculation (fwd)

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---------- Forwarded message ----------
Date: Mon, 14 May 2007 00:04:53 -0700
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Flat Ribbon Primary Inductance Calculation

Hi All,

Today I threw together another javascript design tool to find the 
inductance for Flat Ribbon Coils (and yes it's quite different than 
round wire of the same thickness, pitch, etc..).
http://www.classictesla.com/java/flatribbon/flatribbon.html

I began with Grovers calculations and interpolations. I also looked at 
what Kurt Schraner had discovered in the Circular of the Bureau of 
Standards No. 74. Both Kurts and Grovers results were nearly identical 
(and a good crosscheck on Kurts calculations). Grovers calculations 
required 4 tables of lookup constants which was far more tedious than 
Kurts calculations. I therefore used Kurts discovered calculation as it 
was far easier to implement.

And of course the program handles both metric and inches.

Hope you find it useful in the future. The link is on my main page under 
"Javascript Design Tools".

I'd like to thank Kurt Schraner for researching and putting together 
this calculation in an Excel spreadsheet for Flat Ribbon Coils. Very 
useful tool and well thought out.
http://home.datacomm.ch/k.schraner/FlatRibbonCoil.zip

Take care,
Bart