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 -
922 views
Technical Discussions
T. Stepinski
R & D
Uppsala University, Sweden, Joined Nov 1998, 14

T. Stepinski

R & D
Uppsala University,
Sweden,
Joined Nov 1998
14
01:57 Dec-05-1999
transducer calibration

Periodic calibration of ultrasonic transducers has become an important issue for inspection companies in Sweden.
Does anybody know any commercial equipment for this purpose?


 
 Reply 
 
Tom Nelligan
Engineering,
retired, USA, Joined Nov 1998, 390

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
05:24 Dec-06-1999
Re: transducer calibration

: Periodic calibration of ultrasonic transducers has become an important issue for inspection companies in Sweden.
: Does anybody know any commercial equipment for this purpose?

I don't think that it is a question of specific equipment so much as a matter of your test procedure and appropriate calibration control of your test equipment. We qualify transducer performance here using test blocks, pulser/receivers and signal analyzers whose calibration is traceable to a national standard and verified periodically. You could use any reasonable combination of instrumentation and reference standards to gage the performance of a specific transducer. As long as the calibration of your test equipment is documented and controlled, you should be able to reliably track transducer performance over time.

Panametrics and many other transducer manufacturers will retest used transducers under such controlled conditions for a reasonable fee.

--Tom Nelligan


 
 Reply 
 
Rolf Diederichs
Director,
NDT.net, Germany, Joined Nov 1998, 616

Rolf Diederichs

Director,
NDT.net,
Germany,
Joined Nov 1998
616
09:12 Dec-06-1999
Re: transducer calibration
: Periodic calibration of ultrasonic transducers has become an important issue for inspection companies in Sweden.
: Does anybody know any commercial equipment for this purpose?
-------------

There was a paper at the ECNDT'98 about Periodical Verification,
however, not about transducers.

H. Walaszek - CETIM, France.
Periodical Verification of Ultrasonic Flaw Detectors
According to European Standardization.

Abstract (http://www.ndt.net/abstract/ecndt98/461.htm)

This paper at first briefly describes the present state of European standards projects elaborated by working group 2 of
138 technical comitee (EN TC 138 - WG2) and concerning the verification of ultrasonic equipment used in non
destructive testing. The paper higligthts the consequences of this standard projects when it is adopted (forseen in 1998)
on the verification of ultrasonic flaw detectors which periodicity will be at least once e year.

Finally, is given an example of application of standard project, through the description of a prototype of partly automated
system developped by CETIM and enabling verifications in conformity with European standards.

This paper is illustred by an example of performing verification of one of the characteristic parameters of a flaw detector.


 
 Reply 
 

Product Spotlight

VeeScan AirCraft Wheel Inspection

The VEESCAN offers maximum flexibility, has a proven mechanical design and records of breakdown-fr
...
ee operation of over 365 days. Appealing to companies in the Aerospace industry, the VEESCAN is ideal for all wheel-testing environments. With a wide selection of probes, the VeeScan allows your wheel testing facility the flexibility to select the most compatible configurations with their workload.
>

NDTkit RT

NDTkit RT, TESTIA's Digital Radiography software The NDTkit product line software for X-ray analysi
...
s. NDTkit RT is a software benefiting from the Ultis kernel which is dedicated to radiographic image analysis. It offers a set of tools and filtering processes to assist RT operators in finding relevant flaws.
>

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

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.
>

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