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Old 8th May 2011, 10:30 AM   #1
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Join Date: May 2011
Location: Witbank
Post Acoustic levitation

hi everyone

i'm new to this forum thing so please bear with me if I've posted in the wrong section.....

I would like to know if anyone as every tried acoustic levitation ... if so could someone please help explain the terminology to me? and is it possible with a 1400w pioneer car sub that can reach 20Hz with a 900w Calibra Amp powered by a PSU capable of giving enough amps ?

heres some links :

en.wikipedia.org/wiki/Acoustic_levitation
HowStuffWorks "How Acoustic Levitation Works"

I would like to construct a budget version for a science exihibit for the A.A.S.C {All Africa Student Convention}! {I would really appreciate any effort!!!}

Thanx
Ray
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Old 14th May 2011, 02:44 PM   #2
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The frequencies used in these experiments are ultrasonic (above the human hearing range). Your speaker is not the type of speaker that would be suitable for this experiment. A compression driver (like the kind used in pro audio with horns) might work. I encourage you to continue your work on this project, it is a interesting experiment and would be an impressive demonstration.

-David
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Old 14th May 2011, 03:46 PM   #3
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There's this great illustration in F.Alton Everest's Master handbook of Acoustics:

Click the image to open in full size.

- the text only notes it's a Galton whistle, and a second closeup shows the cork slivers at about 1/2" apart, indicating operation at 30Khz. That pressure gauge shows 100PSI at the whistle though - looks like a demo will need a lot of power!
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Old 12th June 2011, 01:35 PM   #4
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Default mmmmmmm......

Awesome! thanx you guys! for the heads up ...sowi for the late reply! .... gtforme00 just wanted to know if I progress with this project would it be expensive ?

Thanx Again Guys!

Regards
Raymond
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