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 -

ULTRASOUND INSTITUTE
The Ultrasound Institute can develop new advanced ultrasonic measurement, imaging and NDT techniques for non-conventional applications.
824 views
Career Discussions
Cesar
Cesar
07:48 Jun-13-2005
Material classification

I have tried to classify the same object from diferent materials (wood , aluminium and wood) with 200 khz transducers, with no luck yet, is there anyone who has worked in material classification? or have any idea why i've not been able to classify betwen these materials.

thanks in advanced.


 
 Reply 
 
John Hansen
Director, - Eddy Current Technology
ETher NDE Ltd, United Kingdom, Joined Oct 1999, 73

John Hansen

Director, - Eddy Current Technology
ETher NDE Ltd,
United Kingdom,
Joined Oct 1999
73
05:26 Jun-14-2005
Re: Material classification
In Reply to S V Swamy at 16:31 Nov-26-2011 .

What test method are we talking about here?

Regards

John Hansen

----------- Start Original Message -----------
: I have tried to classify the same object from diferent materials (wood , aluminium and wood) with 200 khz transducers, with no luck yet, is there anyone who has worked in material classification? or have any idea why i've not been able to classify betwen these materials.
: thanks in advanced.
------------ End Original Message ------------




 
 Reply 
 
Cesar
Cesar
03:46 Jun-14-2005
Re: Material classification
In Reply to Gary Ellison at 18:48 Sep-08-2015 .

----------- Start Original Message -----------
: What test method are we talking about here?
: Regards
: John Hansen

I'm using a pair of air coupled transducers, about 5 cm from the object. I thougth that I was going to obtain different envelopes from these materials, but I get the same response.


 
 Reply 
 
Neil Burleigh
Sales
Krautkramer Australia Pty Ltd, Australia, Joined Dec 2002, 158

Neil Burleigh

Sales
Krautkramer Australia Pty Ltd,
Australia,
Joined Dec 2002
158
00:44 Jun-16-2005
Re: Material classification
How large are the objects that you are trying to test?
What frequency are the transducers?
Have you checked to see what the sound enevelope is like when there is no object between the transducers?

I have found that in some instances sound will take the path of least resistance which could be around the object.
Regards

Neil Burleigh
----------- Start Original Message -----------
: : What test method are we talking about here?
: : Regards
: : John Hansen
: I'm using a pair of air coupled transducers, about 5 cm from the object. I thougth that I was going to obtain different envelopes from these materials, but I get the same response.
------------ End Original Message ------------




 
 Reply 
 

Product Spotlight

UCI Hardness Tester NOVOTEST T-U2

UCI hardness tester NOVOTEST T-U2 is is used for non-destructive hardness testing of: metals and
...
alloys by scales of hardness: Rockwell (HRC), Brinell (HB), Vickers (HV); non-ferrous metals, alloys of iron etc., and using five additional scales for calibration; with tensile strength (Rm) scale determines the tensile strength of carbon steel pearlitic products by automatic recalculation from Brinell (HB) hardness scale.
>

Semi-Automated Phased Array Immersion System for Small Composite Parts

Turn-key semi-automated system as an improved and affordable solution for inspection of small comp
...
osite parts. Includes support table, immersion tank, scanner, PA instrument, PC, Analysis software, database, wedge management and other options.
>

A1525 SOLO

A1525 Solo – the most compact and affordable TMF unit with two phased array transducers and 3D v
...
isualization and analysis software in standard delivery set. A compact, ergonomic and easy to handheld Phased Array unit based on Total Focusing Method for easy-going imaging of inspection objects with two-dimensional and three-dimensional visualization and evaluation of inspection results.
>

Aerospace Systems - Automated Ultrasonic Inspection

USL are specialists in the design and manufacture of turnkey ultrasonic inspection systems for aer
...
ospace applications. From monolithic composites to complex honeycomb structures. This video shows just a few examples of what is possible, find out more at: www.ultrasonic-sciences.co.uk
>

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