Re: rolled caps (fwd)

• To: tesla-at-pupman-dot-com
• Subject: Re: rolled caps (fwd)
• From: Tesla List <mod1-at-pupman-dot-com>
• Date: Mon, 15 Dec 1997 15:48:09 -0700 (MST)
• Approved: mod1-at-pupman-dot-com

---------- Forwarded message ----------
Date: Mon, 15 Dec 1997 13:23:41 -0800 (PST)
From: baumann-at-proton.llumc.edu
To: tesla-at-pupman-dot-com
Subject: Re: rolled caps (fwd)

On 15 Dec, Tesla List wrote:
> 
> I can't seem to find my information on how to calculate capacitance for
> a rolled capacitor.  Could somebody help?
> 
Somebody correct me if I am wrong, but:
C(pf) = ((0.224 * DC * A)/T) *2
Where DC is the Dielectric constant (for LDPE use 2.0)
A is area of plates in square inches
T is thickness of dielectric in inches.

The last mulitplier of 2 is a side effect of rolling. For flat
plates, leave it out.


-- 
--
Michael Baumann  Optivus Technology Inc.|Loma Linda University Medical Center
San Bernardino, California. (909)799-8308 |Internet: baumann-at-llumc.edu

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