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Technical Discussions
sandip
NDT Inspector,
India, Joined Dec 2014, 7

sandip

NDT Inspector,
India,
Joined Dec 2014
7
08:39 Feb-28-2015
PAUT

Dear sir....
Please any one can tell me. how to beam forming in PAUT.
For Ex..SA2-N55S
N- only 55deg natural angle.
then also we can form 45deg to 70deg.

 
 Reply 
 
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1307

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1307
15:45 Mar-01-2015
Re: PAUT
In Reply to sandip at 08:39 Feb-28-2015 (Opening).

Sandip, there is a VERY large selection of papers, animations, explanations and images describing PAUT beamforming on the internet. You only have to take the time to do the search. Try entering a Google search for "ultrasonic phased array beamforming ". Alternatively use the search tool here on NDT.net and enter Ginzel photoelastic...the last 6 papers (14-20) of the video series deal with PAUT fundamentals.

1
 
 Reply 
 
Rick Baek
NDT Inspector,
Contractor, Australia, Joined May 2012, 19

Rick Baek

NDT Inspector,
Contractor,
Australia,
Joined May 2012
19
08:44 Mar-02-2015
Re: PAUT
In Reply to sandip at 08:39 Feb-28-2015 (Opening).

This is the wedge, subject to probe, it will generate a 55 degree shear when using linear
go here: http://www.attar.com.au/download-forms.aspx to view a beam visualization tool for PAUT
and go here: http://www.olympus-ims.com/en/webinar/weldinspection/ to learn move about the use of PAUT...

1
 
 Reply 
 
J Mark Davis
Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama, USA, Joined Mar 2000, 85

J Mark Davis

Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama,
USA,
Joined Mar 2000
85
17:50 Mar-02-2015
Re: PAUT
In Reply to sandip at 08:39 Feb-28-2015 (Opening).

With that wedge you can develop a set of focal laws to produce the beams you suggest from 45 to 70 at 1 degree or even .1 degree increments.

You could even produce sounds beams from 0 degree to 89 degrees if you want, but highly unfeasible.

Basically the sound beams are formed, steered and focused within the software and electronically.

Go to Olympus NDT Web Site and you will find slides and tutorials detailing the aspects of your inquiry.

Respectfully

J Mark Davis

1
 
 Reply 
 

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