a measurement question
I am not Einstein
I have to calibrate a machine which measures two parameters which are
dependending on each other.
How should I device method of calibration for each parameter.Any help
will be appreciated.
Thanks in advance.
Sam Wormley
It would help, if you posted what is it you need to measure!
I am not Einstein
Sam Wormley wrote:
> It would help, if you posted what is it you need to measure!
Thanks.
Wills.
.-- .- -... -. .. --. @.-----.DOT.-- Helmut Wabnig
<wills.ki...@gmail.com> wrote:
Very interesting indeed, so plentiful mucho informationes.
Now World knows that you have a drum with two ends.
w.
Sam Wormley
Consider a cylindrically drum of radius R and wall thickness T
containing a fluid of pressure P. Elementary statics shows that the
hoop and axial stresses are respectively given by
Hoop Stress = PR/T
Axial Stress = PR/2T.
A variety of ultrasonic measurement configurations are sensitive to
these stress components. In general, they are also influenced by
microstructure, rendering determining the stress on a drum of unknown
microstructure problematic. However, this problem can be overcome by
measuring the difference in the velocities of horizontally polarized
shear waves propagating in the hoop and circumferential directions.
In the absence of stress, these two velocities must be equal
independent of microstructure. Hence the subtraction eliminates the
material effects. The difference in the velocities is proportional to
the difference in the in-plane principal stresses. Since such a
difference exists in a pressurized drum, and is proportional to
pressure as predicted by known relationships, the possibility exists
for a direct determination of the pressure. The final relationship
that results is the following simple expression.
P = 4G ( T/R )[ (Vhoop-Vaxial) V ]
Here G is the shear modulus and Vhoop and Vaxial are the velocities
of horizontally polarized shear waves propagating in the hoop and
axial directions respectively.
hanson
message news:c4gfo2lqhf6cq0tuv...@4ax.com...[Wabnigger to wills king]
> Very interesting indeed, so plentiful mucho informationes.
> Now World knows that you have a drum with two ends.
> w.
>
Hey Wabnigger, you always like to present yourself an Arian
physics hot shot in the NGs. So, you surely can do much better
than just showing off your feeble Spanish. For instance, as
I suggested to you 6 times before, start to atone and help the
Israeli Yehiel Porat to promote his theory. He knows it and he
is waiting. So, go help Yehiel. Continue with the thread that
I started for Yehiel with the post:
http://groups.google.com/group/sci.chem/msg/33082c606ed857a0
Now follow that example, Wabnigger. Do something for Yehi.
Help Yehiel, Helmut. Don't continue to be a feiger Schweinehund.
Look, Wabnigger, the ghosts from you fingering Jews to the Nazis
in the 1940's obviously still haunts you... and all your revisionism
attempts about Hitler's habits will not ameliorate that. It will help you
as little as your bragging that you personally have known Nazi Generals.
http://groups.google.com/group/sci.physics/msg/9d6540b93d4f7a54
http://groups.google.com/group/sci.physics/msg/5c71e19727e0ec9a
>Ann>5. ::: Do you know any Jewish people?
>Wab> ::: Yes, eg. General Milch, a nazi general in Hitler's airforce.
> Wab>::: And e.g. Heydrich, who had a Jewish Grandmother, they say.
Neither will you get any relief with your sanctimonious sucking up to
the Zionists who said that they were Judeo Nazis as you did in here:
http://groups.google.com/group/sci.physics/msg/d29c4e7587b1f592
So, Wabnigger, at long last don't continue to be a feiger Schweinehund.
Do something for Yehi, continue that help to Yehie as was started here:
http://groups.google.com/group/sci.chem/msg/33082c606ed857a0
Now follow that example, Wabnigger. . Help Yehiel, Helmut.
hanson
I am not Einstein
Sam Wormley wrote:
> I am not Einstein wrote:
> > Sam Wormley wrote:
> >> It would help, if you posted what is it you need to measure!
> >
> > I am measuring the pressure on two sides of a drum .
> > Thanks.
> > Wills.
> >
>
>
> Consider a cylindrically drum of radius R and wall thickness T
> containing a fluid of pressure P. Elementary statics shows that the
> hoop and axial stresses are respectively given by
>
> Hoop Stress = PR/T
>
> Axial Stress = PR/2T.
>
Thanks for the analysis.I will try to continue from here.
Thanks.
Wills.