Re: Multifrequency Tympanometry

```Thank you for correcting me; that was what i meant but didn't come out right :-); RF is proportional to Square root of stiffness and indirectly proportional to square root of mass
Cheers
Navid
Navid Shahnaz, Ph.D
Assistant Professor
School of Audiology & Speech Sciences
Faculty of Medicine
5804 Fairview Ave.
Vancouver, B.C. V6t 1Z3
Tel. 604-822-5953
Fax. 604-822-6569
E-mail: nshahnaz@xxxxxxxxxxxxxxxxxx
Website: http://www.audiospeech.ubc.ca/school/faculty/navid/

---------- Original Message ----------------------------------
From: "reinifrosch@xxxxxxxxxx" <reinifrosch@xxxxxxxxxx>
Date:          Sun, 15 Oct 2006 11:20:16 +0000

>Hello Navid and List,
>
>A technical comment:
>
>The resonance frequency is proportional to the square root
>of the stiffness, and indirectly proportional to the square root
>of the mass.
>
>Example:
>
>A sphere of mass M on a spring of stiffness (i.e., spring
>constant) S.
>
>In the SI (système international), the dimension
>of M is kg, and that of the spring constant S is N/m
>(Newtons per metre).
>
>Tne Newton is the unit of force, i.e., of mass times
>acceleration, and thus is equal to one kg * m / s^2.
>
>So the dimension of the stiffness S is kg / s^2, and that of
>the square root of (S/M) is 1/s, equal to the dimension of
>frequencies.
>
>Reinhart Frosch.
>
>Reinhart Frosch,
>Dr. phil. nat.,
>r. PSI and ETH Zurich,
>Sommerhaldenstr. 5B,
>CH-5200 Brugg.
>Phone: 0041 56 441 77 72.
>Mobile: 0041 79 754 30 32.
>E-mail: reinifrosch@xxxxxxxxxx .
>
>----Ursprüngliche Nachricht----
>Von: nshahnaz@xxxxxxxxxxxxxxxxxx
>Datum: 14.10.2006 18:06
>An: <AUDITORY@xxxxxxxxxxxxxxx>
>Betreff: Re: Multifrequency Tympanometry
>
>Hi
>
>[...] Resonant frequency is directly proportional to the
>square of stiffness and indirectly proportional to the
>effect of mass. [...]
>

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