Go to:

http://www.caeultrasonics.com/index.php3

Then click on any one of the technical papers. They're very detailed and talk
about what causes damage and how using multiple sweep frequencies eliminates
it.

Some pretty good stuff...

-Steve Gregory-


> Trials were also conducted in Plessey in the late 80s using an ICI u/s tank
> and Arklone. The engineer concerned found that the standard packages used
> were all OK after a total of 24 hours exposure. No functional degradation at
> all, but, boy!, were they clean!
> Unfortunately, the study was never published and the engineer himself passed
> away a few years ago so I was never able to obtain confirmation in writing.
> I am surprised that one of the larger suppliers of u/s cleaning equipment
> has not undertaken a definitive study and published the results. Or have
> they and I just missed it?
> Regards
> Eric Dawson