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Sci.Electronics.Basics -> How can I vary an Ultrasonic Mist Maker vibration using a sound card tia sal2

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Author: sal2
Date: 22:10 13-06-08

Greetings All

I would like to vary an ultrasonic mist maker like this one
http://www.physlink.com//estore/cart/UltrasonicMistMaker.cfm
using my audio sound card.

Example:
I want to produce complex waves using my sound card 4000Hz square wave
combined with some 1000 hz sine waves etc.. I would like to be able
to vibrate the ultrasonic mist maker transducer at this rate. Is this
possible?

I can create the audio waves easily but I'm not sure how to drive/control
the vibration of the ultrasonic mist maker using the signal coming from
my sound card. Does anyone have any recommendations? I'm trying to keep
this as cheap as possible and use a ultrasonic transducer off the shelf.

tia sal2

Author: amdx
Date: 19:37 14-06-08

"sal2" <sal2@sal2.com> wrote in message
news:pan.2008.06.14.02.10.52@sal2.com...
> Greetings All
>
> I would like to vary an ultrasonic mist maker like this one
> http://www.physlink.com//estore/cart/UltrasonicMistMaker.cfm
> using my audio sound card.
>
> Example:
> I want to produce complex waves using my sound card 4000Hz square wave
> combined with some 1000 hz sine waves etc.. I would like to be able
> to vibrate the ultrasonic mist maker transducer at this rate. Is this
> possible?
>
> I can create the audio waves easily but I'm not sure how to drive/control
> the vibration of the ultrasonic mist maker using the signal coming from
> my sound card. Does anyone have any recommendations? I'm trying to keep
> this as cheap as possible and use a ultrasonic transducer off the shelf.
>
> tia sal2

Author: amdx
Date: 19:41 14-06-08

"amdx" <amdx@knology.net> wrote in message
news:cad8f$48545362$18d6b40c$19391@KNOLOGY.NET... /> >
> "sal2" <sal2@sal2.com> wrote in message
> news:pan.2008.06.14.02.10.52@sal2.com...
>> Greetings All
>>
>> I would like to vary an ultrasonic mist maker like this one
>> http://www.physlink.com//estore/cart/UltrasonicMistMaker.cfm
>> using my audio sound card.
>>
>> Example:
>> I want to produce complex waves using my sound card 4000Hz square wave
>> combined with some 1000 hz sine waves etc.. I would like to be able
>> to vibrate the ultrasonic mist maker transducer at this rate. Is this
>> possible?
>>
>> I can create the audio waves easily but I'm not sure how to drive/control
>> the vibration of the ultrasonic mist maker using the signal coming from
>> my sound card. Does anyone have any recommendations? I'm trying to keep
>> this as cheap as possible and use a ultrasonic transducer off the shelf.
>>
>> tia sal2
>
Most of the mist makers I'm familiar with run at 1 to 2 Megahertz.
Your sound card frequency is way to low. What are you trying to do
with the ultrasound?
Mike

Author: Joerg
Date: 17:16 15-06-08

amdx wrote:
> "amdx" <amdx@knology.net> wrote in message
> news:cad8f$48545362$18d6b40c$19391@KNOLOGY.NET... /> >> "sal2" <sal2@sal2.com> wrote in message
>> news:pan.2008.06.14.02.10.52@sal2.com...
>>> Greetings All
>>>
>>> I would like to vary an ultrasonic mist maker like this one
>>> http://www.physlink.com//estore/cart/UltrasonicMistMaker.cfm
>>> using my audio sound card.
>>>
>>> Example:
>>> I want to produce complex waves using my sound card 4000Hz square wave
>>> combined with some 1000 hz sine waves etc.. I would like to be able
>>> to vibrate the ultrasonic mist maker transducer at this rate. Is this
>>> possible?
>>>
>>> I can create the audio waves easily but I'm not sure how to drive/control
>>> the vibration of the ultrasonic mist maker using the signal coming from
>>> my sound card. Does anyone have any recommendations? I'm trying to keep
>>> this as cheap as possible and use a ultrasonic transducer off the shelf.
>>>
>>> tia sal2
> Most of the mist makers I'm familiar with run at 1 to 2 Megahertz.
> Your sound card frequency is way to low. What are you trying to do
> with the ultrasound?
> Mike
>

Usually you can only modulate it. So he'd have to build a modulator that
gets added on to the generator in the box and then feed that from the
sound card.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

Author: Cwatters
Date: 13:06 22-06-08

Try putting the fog generator between two speakers or one speaker and a
wall. Might be interesting to see if you can see visible standing waves
somehow.

Author: Joerg
Date: 16:53 22-06-08

Cwatters wrote:
> Try putting the fog generator between two speakers or one speaker and a
> wall. Might be interesting to see if you can see visible standing waves
> somehow.
>

Or light up a nice big stogie. Might be frowned upon in some places though.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

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