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Air Ionization using UltraSound



 
 
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  #1  
Old August 24th 06 posted to sci.physics
Neo
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Posts: 6
Default Air Ionization using UltraSound

Is it possible to ionize air using an ultrasound frequency?


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  #2  
Old August 24th 06 posted to sci.physics
Sorcerer
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Posts: 2,164
Default Air Ionization using UltraSound


"Neo" wrote in message
...
| Is it possible to ionize air using an ultrasound frequency?
|



"Air" would be a very vague term to use since it is a mixture of gases,
predominantly nitrogen. Now, a spark can ionize a molecule or two,
but the ions will quickly revert to their normal state. Ultrasound does
not have sufficient energy to ionize air, although in unusual circumstances
it is barely possible that one or two molecules could be stripped
of an electron or one added if two molecules were given sufficient
collision energy from the sound. In general, though, the answer is no.

Androcles


  #3  
Old August 24th 06 posted to sci.physics
Jan Panteltje
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Posts: 2,586
Default Air Ionization using UltraSound

On a sunny day (Thu, 24 Aug 2006 22:59:15 +0200) it happened "Neo"
wrote in :

Is it possible to ionize air using an ultrasound frequency?


Well, anytime I say 'impossible' something or other comes up,
but normally directly : 'no'.

But...
if you had the ultrasound drive some membrane that had some piezzo
element, and used the generated voltage, then yes.
So -if used as energy source to some HV equipment- yes.

  #4  
Old August 24th 06 posted to sci.physics
Tom
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Posts: 7
Default Air Ionization using UltraSound


"Sorcerer" wrote in message
. uk...

"Neo" wrote in message
...
| Is it possible to ionize air using an ultrasound frequency?
|



"Air" would be a very vague term to use since it is a mixture of gases,
predominantly nitrogen. Now, a spark can ionize a molecule or two,
but the ions will quickly revert to their normal state. Ultrasound does
not have sufficient energy to ionize air, although in unusual
circumstances
it is barely possible that one or two molecules could be stripped
of an electron or one added if two molecules were given sufficient
collision energy from the sound. In general, though, the answer is no.

Androcles


Don't listen to Androcles.

The answer to your question is no.
Ask why next time.


  #5  
Old August 25th 06 posted to sci.physics
Sorcerer
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Posts: 2,164
Default Air Ionization using UltraSound


"Tom" wrote in message
reenews.net...
|
| "Sorcerer" wrote in message
| . uk...
|
| "Neo" wrote in message
| ...
| | Is it possible to ionize air using an ultrasound frequency?
| |
|
|
|
| "Air" would be a very vague term to use since it is a mixture of gases,
| predominantly nitrogen. Now, a spark can ionize a molecule or two,
| but the ions will quickly revert to their normal state. Ultrasound does
| not have sufficient energy to ionize air, although in unusual
| circumstances
| it is barely possible that one or two molecules could be stripped
| of an electron or one added if two molecules were given sufficient
| collision energy from the sound. In general, though, the answer is no.
|
| Androcles
|
| Don't listen to Androcles.
|
| The answer to your question is no.
| Ask why next time.

I said the answer was no with explanation, you arsehole.
Don't listen to an arrogant ****head.
Androcles.





  #6  
Old August 25th 06 posted to sci.physics
tj Frazir
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Posts: 9,559
Default Air Ionization using UltraSound

No ts not posible to ionize air ..just some of the crap in it..and dont
go buy that air cleaner idiot.

  #7  
Old August 25th 06 posted to sci.physics
hhc314@yahoo.com
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Posts: 1,491
Default Air Ionization using UltraSound

Generally speaking, no.

Harry C.



Neo wrote:
Is it possible to ionize air using an ultrasound frequency?


  #8  
Old August 25th 06 posted to sci.physics
Neo
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Posts: 6
Default Air Ionization using UltraSound

"Tom" wrote in message
reenews.net...

"Sorcerer" wrote in message
. uk...

"Neo" wrote in message
...
| Is it possible to ionize air using an ultrasound frequency?
|



"Air" would be a very vague term to use since it is a mixture of gases,
predominantly nitrogen. Now, a spark can ionize a molecule or two,
but the ions will quickly revert to their normal state. Ultrasound does
not have sufficient energy to ionize air, although in unusual
circumstances
it is barely possible that one or two molecules could be stripped
of an electron or one added if two molecules were given sufficient
collision energy from the sound. In general, though, the answer is no.

Androcles


Don't listen to Androcles.

The answer to your question is no.
Ask why next time.


Thanks, I wasn't sure so I thought I'd check.

Possibly the best methods then are radiowaves and lasers, especially if you
need to ionize a region a certain distance away.

Neo


  #9  
Old August 28th 06 posted to sci.physics
Neo
external usenet poster
 
Posts: 6
Default Air Ionization using UltraSound


"Neo" wrote in message
...
Is it possible to ionize air using an ultrasound frequency?


Thanks, I wasn't sure so I thought I'd check.

Possibly the best methods then are radiowaves and lasers, especially if you
need to ionize a region a certain distance away.

Neo


 




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