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 -

1233 views
Technical Discussions
Dipl.-Ing. Martin Heinz
Dipl.-Ing. Martin Heinz
09:40 May-11-1999
Standards for Testing Ultrasonic Transducers

Up to now we used our own testing methods. Because thus the values are not good comparable I`m searching
for standarized testing methods for our ultrasonic transducers.
Who know standards (e. g. ASTM, which number?), which describes testing methods for the specification of
ultrasonic transducers? I`m searching for standardized methods for the determination of:
- Sensitivity (e. g. P/E-measurement, which reflector distance?, what driving signal (burst with how many cycles or pulse...)
- Pulse width (How must the driving pulse be specified for a standard measurement?)
- Bandwidth (Is in the standard method a pulse measurement with Fourier transformation used, or is a sweeped CW signal used?)



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

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
01:15 May-11-1999
Re: Standards for Testing Ultrasonic Transducers

: Up to now we used our own testing methods. Because thus the values are not good comparable I`m searching
: for standarized testing methods for our ultrasonic transducers.
: Who know standards (e. g. ASTM, which number?), which describes testing methods for the specification of
: ultrasonic transducers? I`m searching for standardized methods for the determination of:
: - Sensitivity (e. g. P/E-measurement, which reflector distance?, what driving signal (burst with how many cycles or pulse...)
: - Pulse width (How must the driving pulse be specified for a standard measurement?)
: - Bandwidth (Is in the standard method a pulse measurement with Fourier transformation used, or is a sweeped CW signal used?)

You should obtain a copy of ASTM E 1065-96, "Standard Guide for Evaluating Characteristics of Ultrasonic Search Units". It is fairly detailed, and seems to be generally recognized as a good standard for NDT transducer qualification.

--Tom Nelligan
Senior Applications Engineer


    
 
 Reply 
 
Rolf D.
Director,
NDT.net, Germany, Joined Nov 1998, 605

Rolf D.

Director,
NDT.net,
Germany,
Joined Nov 1998
605
01:47 May-11-1999
Re: Standards for Testing Ultrasonic Transducers
al Committee
CEN/TC 138 "Non-destructive testing" of which the secretariat is held by AFNOR.

This document is currently submitted to the formal vote.

This standard consists of the following parts:
EN 12668-1, Non-destructive testing and verification of ultrasonic
examination equipment - Part 1: Instruments
EN 12668-2, Non-destructive testing - Characterization and
verification of ultrasonic examination equipment - Part 2: Probes
EN 12668-3, Non-destructive testing - Characterization and
verification of ultrasonic examination equipment - Part 3: Combined
equipment


Rolf Diederichs



    
 
 Reply 
 
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1261

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1261
06:29 May-16-1999
Re: Standards for Testing Ultrasonic Transducers
In addition to the references by Tom & Rolf DIN 25 450
is a good and comprehensive Code.
Also see:
AFNOR A09-323
JIS Z 2352
ESI-98-9
BS 4331

Ed


: Up to now we used our own testing methods. Because thus the values are not good comparable I`m searching
: for standarized testing methods for our ultrasonic transducers.
: Who know standards (e. g. ASTM, which number?), which describes testing methods for the specification of
: ultrasonic transducers? I`m searching for standardized methods for the determination of:
: - Sensitivity (e. g. P/E-measurement, which reflector distance?, what driving signal (burst with how many cycles or pulse...)
: - Pulse width (How must the driving pulse be specified for a standard measurement?)
: - Bandwidth (Is in the standard method a pulse measurement with Fourier transformation used, or is a sweeped CW signal used?)




    
 
 Reply 
 

Product Spotlight

Echomac® Small

Available with up to eight channels of electronics to detect and evaluate thickness, flaws and eccen
...
tricity, this UT tester is housed in a convenient, smaller cabinet. This instrument can be used in conjunction with bubbler or immersion tank systems, or with a test bench or in laboratory applications. The Echomac® Small is available in the FD4, FD6 or FD6A versions.
>

FMC/TFM

Next generation for Phased Array UT is here now with FMC/TFM! Have higher resolution imaging, impr
...
oved signal to noise ratio, characterize, size and analyze defects better with access to several wave mode views and save raw FMC data for higher quality analysis.  Some of the benefits are:
  • Beautiful Image! Easier to understand what you're looking at
  • Completely focused in entire image or volume
  • Much easier to define setups before inspection
  • Easier to decipher geometry echoes from real defects
  • Oriented defects (e.g. cracks) are imaged better
  • See image from different wave modes from one FMC inspection
  • FMC data can be reprocessed/analyzed without going back to the field
>

Magnetic X-Ray Pipeline Crawler

Zhong Yi brand pipeline crawler is magnetic/micro-video controlled crawler with DC X ray unit inst
...
alled for checking welding of pipeline. Move steadily inside the pipeline 6''-60''diameter with speed of up to 18m/min, Max. moving diatance 5 kilometers and provide the efficient inspection of the pipeline.
>

NOVO Armor 15 & NOVO Armor 22

The Armor Kit Contains the NOVO Armor, which provides additional mechanical protection to the NOVO 1
...
5WN & NOVO 22WN Detectors, the Armor Stand and a traveling soft cover. - Newest shock absorbent technology case - Water resistant design - Supports wired & wireless communication - Multiple positioning options - Tripod connection using the Built-in 1/4” threads - Simple Detector battery replacement
>

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