DISSOCIATING WATER, A KEELY Project

[Mr.Entropy]

No offence intended, but I had to chuckle when I looked at Mr Entropy's post somewhere above. Hans had just stated that he was a little out of his depth with electronics and so, as if to rub it in, Mr Entrophy follows with a post containing quite detailed formulas and equations.Ã,  Why go for the less complicated, 'complex number arithmetic' when you can have 'trig identities', eh!Ã,  Perhaps it's just me, but I thought it was funny!

Ah, but there was no electronics in that post, miss Day --Ã,  just math.Ã,  Plain ol' algebra and trigonometry that you _should_ remember from high school.Ã,  If Hans can get someone to design and/or build a circuit along those lines, he will need to know that math in order to program his sound card correctly.

I expect that Hans can do the math.Ã,  If not, he can research it a bit and do it tommorrow.Ã,  He has, after all, done a lot of research in his time.

Cheers,

Mr. Entropy

[hansvonlieven]

G'day Entropy and all,

I am sorry I only saw this just now otherwise I would have said something sooner.

You are absolutely correct in assuming that the math part did not exactly faze me. It was very helpful and enables me to gain a better understanding of what I am trying to build. After some study I believe I completely understood what you were trying to teach me. I am grateful.

I still don't quite understand how that translates into components and circuit design but it is a good starting point and with a bit of diligent work I am sure I will get there.

As a retired engineer I have had to add up a few figures every now and then over the years :-)

Thanks again for your contribution. It is appreciated.

Hans von Lieven

[Kator01]

Hello Hans,

spricht Du deutsch ?

Anyway here is something which I found a few years ago. This might be of great interest for you :

Macrosonixs corp. Beginning in 1998
http://www.americanscientist.org/template/AssetDetail/assetid/21006/page/1?&print=yes

and today :

http://www.macrosonix.com/motors/motorapps.htm

I am pretty short in time and will not participate in this thread but will drop by once and awhile to see
how this topic develops.

Your concept of a asymetic-rotation-driven-pendulum is very interesting.

Regards

Kator

[fritz]

Ultrasonic Reactor

I?m on the way to build my ultrasonic reactor .....
My goal is to have a universal tool to play around
with torsion waves in liquids.
I don?t want to build 5 or 10 reactors - so it should
be a clever design from the very beginning.
To have a solid platform - I tend to use a cylindrical
part of an al-cast (part of a motorblock/ cylinder).
To avoid reflections and standig waves (I want to build
a reactor and not a resonator) I had the Idea to use
kind of spongy material to coat the inside of the reactor.
I found quite nice high quality piezos used to vaporize
water - 3 of them should be positioned in an xyz way,
mounted in the wall of the al-cast block.
The 3 piezos should be driven with multiple cascades
of dds sine generators - operating with the same or multiple
masterclocks - enabling multiple time domains.
The maximum output power of one piezo is about some watts.
The dds cascades should additional have the possibility to
synthesize single pulses with phase and full harmonic control
from 0.001 to 200 MHz (from signal point of view).
I want to use this Synthesizer for other interesting things -
so please dont worry about the 200MHz.

Do you have any suggestions, comments on this ?
Do you think spongy material can be used to avoid reflections ?
Maybe there is still an issue that the piezos have too less power,
but the commercial, high power parts are too big in size for
such setup.
What would you keep in mind designing such reactor !?

rgds.

[hansvonlieven]

G'day Fritz,

This is an interesting and ambitious project you have in mind. I don't want to give an answer to this off the cuff as it were, so please give me a day or two to put something together that might be helpful.

Hans von Lieven