I meant 38,000 cycles per second. Thirty-eight
KC is force-of-habit.......I come from the age of "academic dinosaurs......a
time long before hertz replaced cycles.
Sincerely, Brooks Bradley.
"silversw...@yahoo.com" wrote:
> Do you mean 38 Khz? or 38,000 KHz?
>
> "That is, high energies at
> > these frequencies (we used 38 KC most frequently)
> > will dislodge microscopic
> > particulates."
>
> --- Brooks Bradley <brooks.brad...@worldnet.att.net>
> wrote:
> > Dear Petmc,
> > Many years ago I was associated
> > with a large (and
> > innovative) research and development firm.....we
> > conducted extensive design and
> > operational tests of varying untrasonic
> > designs----principally for cleaning
> > objectives. One of the most distinctive effects of
> > using ultrasound for these
> > activities was that was a non-discriminatory
> > cleaner. That is, high energies at
> > these frequencies (we used 38 KC most frequently)
> > will dislodge microscopic
> > particulates that a majority of other
> > means----sometimes including chemical
> > reactions----had failed to accomplish. This being
> > the case I would caution all
> > experimenters to keep this characteristic in
> > mind-----and to ALWAYS subject the
> > intended containment vessel to an ultrasonic
> > cleaning itself (using distilled
> > water to the highest solution level anticipated for
> > generating the CS
> > product). This procedure should last from 3 to 5
> > minutes. This is the most
> > convenient and reliable method for preparing your
> > generation vessel for an
> > acceptably-clean condition for producing CS in such
> > an environment (at least,
> > this is my opinion).
> > One other consideration worthy of possible
> > reflection........ultrasonic
> > energy's indiscriminate action insures that any
> > compounds and/or impurities
> > resulting from the generation process itself----will
> > be subject to
> > disassociation, size-reduction and distribution
> > throughout the liquid medium
> > being used to produce the CS........and this,
> > obviously, includes any materials
> > adhering to the container walls.
> > Sincerely,
> > Brooks Bradley.
> >
> > brpete...@msn.com.au wrote:
> >
> > > As a user of the pulsed d.c. method of cs
> > generation,I have recently become
> > > curious as to any beneficial effect of ultrasound
> > frequencies applied to the
> > > colloidal process.
> > >
> > >
> > > --
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>
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