impedance and empericism -- longer

Richard Moody remoody@midstatesd.net
Fri, 30 Jun 2000 00:15:20 -0500



> >  We need to devise a simple
> >experiment.  Compare the partial readings of a string between two clamps
to
> >one of the same length on a sound  board.  Keep a record over varying
days
> >of humidity and temperature.  Which changes the most?   Is this a valid
> >experiment to arrive at an understandingof the effects of RH on IH ?
> >---ric
>
> Sounds like a reasonable start. Let us know what you find.
>
> Ron N


I said "we" for a good reason.  The equipment I envision is far beyond my
resources, a lab full and a team would be ideal.   But the first start of
any research is to find out what research has already been done.  At least I
could give that a crack.
You said,
>" As the moisture content of the soundboard assembly changes, so does it's
>mass and  stiffness, and thus it's impedance and resonant frequency at any
>given point on the scale. All that is measurable, has been measured, ....."

Was this pubished?  Where?---ric







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