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 -

603 views
Technical Discussions
Joseph Batt
Joseph Batt
07:45 May-04-2000
Volumetrically sizing using TOFD

Hello,

I am an MSc student from the Robert Gordon University in Aberdeen
(Scotland). For my project I need to find a TOFD system which
could be able to size volumetrically defects in welds.
I would really appreciate if someone could give me some informations
about it (theory, internet links, bibliography, etc).
Thank you very much.

Joseph Batt



 
 Reply 
 
Wieslaw Bicz
Engineering,
PBP Optel sp. z o.o., Poland, Joined Feb 2009, 276

Wieslaw Bicz

Engineering,
PBP Optel sp. z o.o.,
Poland,
Joined Feb 2009
276
08:18 May-04-2000
Re: Volumetrically sizing using TOFD
: Hello,

: I am an MSc student from the Robert Gordon University in Aberdeen
: (Scotland). For my project I need to find a TOFD system which
: could be able to size volumetrically defects in welds.
: I would really appreciate if someone could give me some informations
: about it (theory, internet links, bibliography, etc).
: Thank you very much.

: Joseph Batt

We are working now on the system that is more than only TOFD-system.
It can see the whole acoustical hologram of the object (and is based on the similiar idea as our fingerprint recognition camera).

The first such system should be ready in May and will be used for visualisation of internal structure of such objects as Fruits, fingers and other biological objects).
It would be possible to make a version of this device, that can visualize welds (show the internal structure of the weld).

If you are interested in cooperation on this field, please inform me.

Wieslaw Bicz





 
 Reply 
 
Doug Breeze
Director, Consultant; R&D
Inspection Software Limited, United Kingdom, Joined May 2000, 20

Doug Breeze

Director, Consultant; R&D
Inspection Software Limited,
United Kingdom,
Joined May 2000
20
00:33 May-05-2000
Re: Volumetrically sizing using TOFD
Hi Joseph

Take a look at FORCE Institute's P-scan System 4...
It can handle all conventional UT modes, including TOFD,
and can generate Top, Side and End views of the test
piece, even in its basic off-the-shelf configuration.

With additional software it can also generate active
3-D simulations.

We'll be at Materials Testing 2000 next week (May 9th
to 11th) on Stand D1 at the NEC, Birmingham, UK. We'll
have a P-scan System 4 (in its standard configuration)
at the Stand. Come along if you can for a chat, or if you can't then
email me privately for more info.

Best regards



 
 Reply 
 
Dave Lines
Dave Lines
00:10 May-08-2000
Re: Volumetrically sizing using TOFD
: Hello,

: I am an MSc student from the Robert Gordon University in Aberdeen
: (Scotland). For my project I need to find a TOFD system which
: could be able to size volumetrically defects in welds.
: I would really appreciate if someone could give me some informations
: about it (theory, internet links, bibliography, etc).
: Thank you very much.

: Joseph Batt

If your task is to do volumetric sizing, rather than specifically the use of TOFD in sizing, then Diagnostic Sonar's Flaw Imager system, could be of interest.

TOFD uses a divergent beam to cover the region & this is thenn mechanically swept through the volume of interest. The Flaw Imager uses linear arrays to achieve the same regional coverage, but since the beams are swept, they retain the same signal to noise ratio of the conventional single element systems.

The laptop-based instrument produces real-time B-scans (as used by medical imagers) and so can be used for interactive searching. The array is fitted into a simple mechanical position sensing system for acquiring the volumetric data you require.

Please find additional information at Diagnostic Sonar's website below, or e-mail us direct.



 
 Reply 
 

Product Spotlight

Micro CT

nanoVoxel series has nano-scale resolution upto 500nm by using high voltage X-ray source (from 80-
...
300 kV) with micro/nano focal spot and highly sensitive flat panel detectors and unique Optical coupling detector.
>

ISONIC 3510

Very Powerful Superior Performance Extremely Portable Smart Phased Array Ultrasonic Flaw Detector an
...
d Recorder with 2 Conventional UT and TOFD Channels uniquely combines PA, single- and multi-channel conventional UT, and TOFD modalities providing 100% raw data recording and imaging. Suitable for all kinds of every-day ultrasonic inspections
>

TraiNDE UT

TraiNDE UT is a virtual tool associated with a signal database which simulates real inspection con
...
ditions for numerous applications (Type A/V1 block, DAC block, welds and plates).
>

TESTD-PT SYSTEM

Pulse thermography is a non-contact test method that is ideal for the characterization of thin fil
...
ms and coatings or the detection of defects. With a remarquable short test time and a high detection sensitivity, the Telops TESTD-PT is the perfect tool for non- destructive testing. With such high frame rates, it is even possible to investigate highly conductive or diffusive materials.
>

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