Re: Message. : As with accuracy to measure of factor of absorption and speed of a sound in a liquid. For example milk.
If I understand well, your request is the precision we
can expect for sound speed meausrement and sound attenuation.
This value is dependant of your experimental setup,
electronics performances, and dimension measurement accuracy.
usually 1/100, we can expect 1/1000 m/s accuracy in ultrasonics speed
measurement with higth precaution procedure.
The attenuation accuracy depend on the same parameters
and also frequency use. For materials with higth
attenuation You can't perform the soound propagation
on big length, so your accuracy is limited.
Can you precise your application, please
J.P. van Cuyck
A2MS, Applied Acoustics, Materials and Systems
"Le Grand Luminy",
Luminy Scientific Park
13 288 Marseilles Cedex
Tel +33 491 828 494
Fax +33 491 828 485