Re: [Paddlewise] Kayak + Pitch = Volume?

From: Joe Pylka <pylka_at_castle.net>
Date: Mon, 19 Feb 2001 01:28:38 -0500
> . Is
> > it possible to determine the volume of a space by the resonating
frequency?
> > (...maybe the polyester resin is getting to me...)
>
> Not easily.  Straightforward mathematical models to relate resonant
frequency
> to volume exist for tubes of uniform diameter (e.g., organ pipes), but a
yak
> has a highly variable cross section.  Should be possible to take a
> semiempirical approach, though, by measuring the volume of a couple yaks
having
> similar profile to yours and their resonant frequency.

        There's a huge body of studies about this, going back to the 19th
Century.  Strictly speaking it is easier to determine resonant frequency
knowing the volume and other parameters, but the inverse is doable.
        Ever heard of Helmholz Resonators?  Use to be a late 19thC early
20th mechanical method of empirical spectral analysis.  There's also a whole
bunch of stuff by Lord Rayleigh about that same time about this...

>

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Received on Sun Feb 18 2001 - 22:29:04 PST

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