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- since 1996 -

Acoustic Emission Consulting, Inc.
Acoustic Emission Consulting, Inc. specializes in the design of small portable AE instruments for field and lab use.
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Technical Discussions
Antonio Filippi
Antonio Filippi
02:11 Nov-19-1999
Beam diameter??

Dear Friends

I need to assess the ultrasonic beam diameter for the following case:

Probe details:
frequency 10 MHz (the probe is focused with spherical focus)
focal length 62.5 mm (specified by manifacturer for water)
diameter 6.25 mm

The classical equation gives me a value for the diameter equals to 1.65 mm

The problem is that I need to focus on a lower side of a steel plate 9 mm thick. So I have part of the
ultrasonic path in water and part in steel. Does this alter the dimension of the beam??

Thanks in advance

Antonio Filippi


    
 
 Reply 
 
Jerome POGUET
Sales, Support
IMASONIC S.A., France, Joined Nov 1999, 1

Jerome POGUET

Sales, Support
IMASONIC S.A.,
France,
Joined Nov 1999
1
02:47 Nov-19-1999
Re: Beam diameter??
e of a steel plate 9 mm thick. So I have part of the
: ultrasonic path in water and part in steel. Does this alter the dimension of the beam??

: Thanks in advance

: Antonio Filippi




    
 
 Reply 
 

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