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Forum index » Science and Technology » Physics » Acoustics
How to deflect an ultrasound (125 KHz) beam ?
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Ian1
science forum beginner


Joined: 16 Feb 2005
Posts: 22

PostPosted: Wed Feb 16, 2005 1:04 am    Post subject: Re: How to deflect an ultrasound (125 KHz) beam ? Reply with quote

A high density steel plate will suffice quite well. If you want to achieve
the best possible interface we used a small plate of tungsten as a a
"mirror" in an acoustic current meter.

"Mike K" <mike_k@hotmail.com> wrote in message
news:cukm18$be0$1@news7.svr.pol.co.uk...
Quote:
I would like to deflect a 125 KHz ultrasound pulse by 90 degree under
water
in the simplest possible way.
If I used a plate of material at 45 degrees to the beam how can I ensure
that as much energy as possible is deflected and not either absorbed by
the
material or passed straight through?
Do I simply choose a material with as higher density as possible or does
the
density not matter ?
Do I just need an acoustically stiff material, and if so what ?
Any help would be much appreciated.
Mike

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Mike K
science forum beginner


Joined: 12 Feb 2005
Posts: 1

PostPosted: Sat Feb 12, 2005 9:36 am    Post subject: How to deflect an ultrasound (125 KHz) beam ? Reply with quote

I would like to deflect a 125 KHz ultrasound pulse by 90 degree under water
in the simplest possible way.
If I used a plate of material at 45 degrees to the beam how can I ensure
that as much energy as possible is deflected and not either absorbed by the
material or passed straight through?
Do I simply choose a material with as higher density as possible or does the
density not matter ?
Do I just need an acoustically stiff material, and if so what ?
Any help would be much appreciated.
Mike
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