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faridmi
Participant

Join Date: Jul 2012
Posts: 2

Impedance Tube

07/24/2012 7:26 AM

Hi

I want to know what is an impedance tube made of?

I want to make one, and I think it is better to build it with steel to have a heavier tube.

Is that allright?

thanks
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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: Impedance Tube

07/24/2012 9:13 AM

I'd use aluminum.
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faridmi
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Join Date: Jul 2012
Posts: 2
#2
In reply to #1

Re: Impedance Tube

07/24/2012 4:13 PM

Thanks

would you tell me why?

And what would be the wall's thickness?

Does any one know about famous companies like B&K etc.?How they build it?
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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#3
In reply to #2

Re: Impedance Tube

07/24/2012 4:31 PM

The tube must not absorb any acoustic energy. It must be stiff.

Wall thickness depends on frequency, more or less.

BSWA Impedance Tube Solutions
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