-----Original Message-----
From: Richard W. Ehrhorn <w4eto@rmi.net>
To: 'measures@vc.net' <measures@vc.net>; amps@contesting.com
<amps@contesting.com>
To: <amps@contesting.com>
Date: 06 August 1999 19:57
Subject: RE: [AMPS] Pi-Net math
>
>Rich...
>
>Why do you find it so hard to comprehend that there's a
FUNDAMENTAL
>definition of "Q" from which all other "descriptions" or
adaptations
>descend?
>
>It's in basic engineering texts going back at least 70
years. E.g.,
>ELECTRONIC and RADIO ENGINEERING, Frederick Terman (Dean of
the Stanford
>School of Engineering), copyrighted first in 1932 and a
classic at least
>well into the 60's... p.45 under the general topic of
"Resonance:"
>
> Q = 2pi (energy stored in circuit) / (energy dissipated in
circuit
> during one cycle)
>
And don't forget that Q exisits in all oscillatory systems,
electrical, mechanical, hydraulic or whatever. The
definition has to be in terms of stored and dissipated
energy and nothing else.
Steve
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