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 -

GRANPECT COMPANY Ltd
GRANPECT bends to the industrialization of high-tech research achievements and specializes in research and development of various X-ray radiation imag ...
937 views
Technical Discussions
zaki
zaki
01:03 Mar-28-2006
DGS Diagrams

Need information on how to use the DGS digrams, also how to plott a DGS diegram for UT peobes


    
 
 Reply 
 
Gabriel Teodorescu
Gabriel Teodorescu
02:52 Mar-29-2006
Re: DGS Diagrams
----------- Start Original Message -----------
: Need information on how to use the DGS digrams, also how to plott a DGS diegram for UT peobes
------------ End Original Message ------------

To use one DGS diagram is one thing, anf to plot one, is another thing. Generally, persons who can plot diagrams, pretend large sums of money. The best solution is to find an already ploted diagram, which is suited to your transducer. It means the DGS diagrams are plotted taking into account frequency and geometrical dimensions of one particular transducer. There are also general DGS diagrams, which can be used for any transducer.
About the use of DGS diagram, you have to use a book dedicated to this problem.

Teodorescu Gabriel, PH. D.


    
 
 Reply 
 
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1268

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1268
02:30 Mar-29-2006
Re: DGS Diagrams
I am not sure if they will help but you might try plotting your parameters using Ermolov's equations.
There is a software tool on NDT.net at http://www.ndt.net/article/v07n01/ginzel/ginzel.htm

----------- Start Original Message -----------
: : Need information on how to use the DGS digrams, also how to plott a DGS diegram for UT peobes
: To use one DGS diagram is one thing, anf to plot one, is another thing. Generally, persons who can plot diagrams, pretend large sums of money. The best solution is to find an already ploted diagram, which is suited to your transducer. It means the DGS diagrams are plotted taking into account frequency and geometrical dimensions of one particular transducer. There are also general DGS diagrams, which can be used for any transducer.
: About the use of DGS diagram, you have to use a book dedicated to this problem.
: Teodorescu Gabriel, PH. D.
------------ End Original Message ------------




    
 
 Reply 
 
Andreas Voge
NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh, Germany, Joined Oct 1999, 129

Andreas Voge

NDT Inspector, Specially in the oilfield
Tuboscope Vetco(Deutschland)Gmbh,
Germany,
Joined Oct 1999
129
03:22 Mar-29-2006
Re: DGS Diagrams

Normally the manufacturer of the probe will supply you with a dgs-diagram for that probe.Otherwise you need need to have ,sorry I know only the german word for it the "Allgemeine AVG Diagram",this apply only to probes without focus or linses and and impuls picture longer than 3 near field length.
Then you get to formulas to calculate the distance and size of the test flaw.But this you should have learned when you make your level examination.

Regards Andreas


    
 
 Reply 
 

Product Spotlight

AIS229 - Multipurpose Real Time System

Latest standard & automatic real time system developed by Balteau. The AIS229 has been designed to
...
do series inspection in a wide variety of industry. Composed of a shielded cabinet, 5 axis manipulator, x-ray generator and tubehead from 160kV to 225kV, a fl at panel & much more, the AIS229 is most certainly one of the most multipurpose RTR system available on the market.
>

Immersion systems

ScanMaster ultrasonic immersion systems are designed for high throughput, multi shift operation in a
...
n industrial or lab environment. These fully integrated systems provide various scanning configurations and incorporate conventional and phased arrays technologies to support diverse applications, such as inspection of disks, bars, shafts, billets and plates. All of ScanMaster immersion systems are built from high accuracy scanning frames allowing for scanning of complex parts and include a multi-channel ultrasonic instrument with exceptional performance. The systems are approved by all major manufacturers for C-scan inspection of jet engine forged discs. Together with a comprehensive set of software modules these flexible series of systems provide the customer with the best price performance solutions.
>

NovaScope 6000

The all-digital Novascope 6000 is a portable, ultra-high precision thickness gauge for high-speed
...
thickness measurement. Novascope 6000 has unmatched capabilities and unique features including: •Superior Resolution with high contrast, high-speed color RF display •High pulser voltage •Real-time video output •Increased internal/external data storage •Programmable SetUp features •Battery & AC Powered
>

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.
>

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