where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -
588 views
Technical Discussions
Tiah Nam Kuan Paul
NDT Inspector
Singapore, Joined Jan 2000, 5

Tiah Nam Kuan Paul

NDT Inspector
Singapore,
Joined Jan 2000
5
04:02 Jan-04-2000
Beam spread


Is it required to do a check on beam spread periodically?


 
 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
03:23 Jan-05-2000
Re: Beam spread
:
: Is it required to do a check on beam spread periodically?

Recalling the ASME Code, it was required when you were to size a flaw. Currently flaw sizing using Time of Flight (TOF) methods and Creeping Wave methods this is no longer required.

Generally, when using a dB drop flaw sizing method you tend to size the beam spread when the flaw is smaller than the beam spread.




 
 Reply 
 
andy cunningham
andy cunningham
05:13 Feb-16-2000
Re: Beam spread
: dont just read, think. sound will propagate through a medium as a hemisphere regardless of wavelength. the so called beam spread is the use of 3 angles of different intensities. tofd would not work if you think of sound as a beam. as i said before read think and understand. dont be mindless and regurgitate someone elses miscomprehension
does that answer your question (no)
yes do the checks to keep to the requirments 0f a quality system.
: Is it required to do a check on beam spread periodically?
all the best acc




 
 Reply 
 

Product Spotlight

NDT.net launches mobile-friendly design

NDT.net has revamped its website providing a mobile-friendly design.The front page received a comp
...
letely new design and all other sections are now reacting responsively on mobile devices. This has been a major step to make our website more user- friendly.
>

High-performance Linear Phased Array Probes

Available to order from stock in a range of 5MHz – 7.5MHz and from 16 to 64 elements. Designed w
...
ith piezo-composite elements, Phoenix phased array probes provide high-resolution imaging to maximise sensitivity; accurate ultrasonic detection and sizing of defects in welds; and effective corrosion mapping. Housed in a rugged stainless steel case for on-site industrial NDT applications.
>

Varex Imaging Large Field of View (FOV) Digital Detector Arrays (DDAs)

A larger FOV DDA can reduce the space and volume of the X-ray inspection system on the factory floor
...
, enable faster scanning times, better throughput and better resolution images at a lower dose. Customers can also save time and money. With these benefits in mind, Varex Imaging has designed a family of large FOV detectors (4343HE, XRD 1611, 4343DX-I, 4343CT) for our industrial imaging customers.
>

Panther

M2M PANTHER is a phased-array equipment designed for both desktop and industrial applications, offer
...
ing unparalleled performance in a compact unit. It combines the speed required for industrial integrated Phased-Array Ultrasound (PAUT) solutions, with the most complete set of total focusing method (TFM) imaging techniques, making it the ultimate tool for R&D and procedure qualification.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window