Questions

Sir,I am new on this board,new in ultrasonic art
and I am interested in water cavitation.
I would like to perform some experiments
with water heating by cavitation on my own.
I have read a lot of articles on internet about
ultrasonic principles and aplications and I have
got so many informations that I am completly
confused now.
Reason why I need some help is that I dont know
where and how to start.
My questions-
1,
How powerful transducer I need to create
cavitation bubbles.
2,
Which kind of booster and sonorode is the
most suitable for this job.
3,
How depend feeding power and frequency

I am designing a generator with variable frequency and voltage; the specs for my transducer are P=50w Cs= 4nf Zm<30ohm F=44khz (cleaning transducer). I do not understand the relationship of these specs and the fact that I keep seeing 600 volts supply for some of the circuit designs?
What is the type of signal do they use positive square, negative square, square, full sine?
Thanks shon

;D

I am interested in the application of ultrasonic aquaeous cleaning (pre-treatment) of parts to be Ni plated. We apply barrel platying. Is it at all possible to get sufficient efficiency of the ultrasonic cleaning effect inside the perforated PP barrel?

Congratulation for this excellent forum !!
Best wishes for 2006 !

I am working with several commercially available devices that cut materials and they have obviously distinct cutting efficiencies.
I would like to physically characterize the devices and their cutting abilities.
I guess they differ in power, resonance frequency, micro-motion amplitude in the X, Y, and Z axes, cutting power and probably many other parameters that I even don't know about.
My question is (simple, hopefully the answer is simple as well) what to measure , how or where to measure all these parameters.

Hi Everyone, as my post title states, I'm looking for information on the Sheffield Cavitron, Ultrasonic Machining Systems.

From what I have learned from my research, these were made by The Sheffield Corp. in Dayton, OH. To make a long story short, I found the company that bought out the Cavitron line, and they refuse to sell me anything for it. :-[

I also found a gentlemen that had ran a Cavitron when he worked for a government agency, but he didn't respond to my requests. :-[

hello sir,

Hello Chris
I’m a Ms.C student and my Thesis is about Ultrasonic drilling.
Right now I want to make a stepped horn (Sonotrode). In the papers and
books which I have read up to now, they all say that the length of the
horn must be half of the wave length and step must be at middle of horn

Dear Readers,

I need to develop my own plastic welding system but i am new to this field.

I want to build 2000Watts 20 KHz Plastic welding system, I think I should have the followings for start:

1- Ultrasonic Generator (I want found more sources.)
2- Ultrasonic 2KWatt 20 KHz transducer (Like 5020-6PS made by Master Sonic)
3- Maybe Ultrasonic Booster!!(I don’t know it is Optional or not? And why we should use it?)
4- Horn (I Think it is equal to Sonotrod, Please tell me am I right?)

For mobile handset ,we weld nut insert to the plastic panel for assembling the top and bottom panels.The OD of the insert is 2.45 mm and the boss ID is 2.2 mm.The machine used is of 20 khz (2000 W).after welding the bosses are developing horizontal cracks(across the boss) inside.Can somebody give advice?

I have a project which needs to use long cables. The length is about 60 feet. A few cables to be prepared: U/S cable to transducer and interface cables to handling unit. I think the interface cable is not an issue since they are generally digital signal. I am not sure if the what is the maximum U/S cable length. Anyone can help?

Questions:
1. Is the U/S cable length an important? What are the effects?
2. If I want to use long U/S power cable, what should I do?

Thank you.

SohKL