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 -

1062 views
Technical Discussions
vengadesh
Engineering,
Tech Mahindra LTD, India, Joined Mar 2016, 4

vengadesh

Engineering,
Tech Mahindra LTD,
India,
Joined Mar 2016
4
13:03 Mar-29-2016
probe output

Dear sir,
I have one doubt ,please help. we have 60 degree probe the prespex shoe was thickness reduced, due to continuous friction . the output of probe wavelength was changed into 65 degree. how can i draw DAC.? for that what is the formula for that..?

 
 Reply 
 
joan pagnoul
Student,
Technifutur, Belgium, Joined Mar 2014, 7

joan pagnoul

Student,
Technifutur,
Belgium,
Joined Mar 2014
7
15:19 Mar-29-2016
Re: probe output
In Reply to vengadesh at 13:03 Mar-29-2016 (Opening).

I think that first, your probe is useless because if I remember norms says 60+/-2 degrees.
And to draw a DAC, methods never change and there is no formula

1
 
 Reply 
 
Csaba Hollo
,
Retired, Canada, Joined Feb 2010, 301

Csaba Hollo

,
Retired,
Canada,
Joined Feb 2010
301
23:29 Mar-29-2016
Re: probe output
In Reply to vengadesh at 13:03 Mar-29-2016 (Opening).

If the code allows you to work with an angle outside of the 60 degree+-, then your calibrations, including regenerating your DAC, must be redone.
Several things have changed, not just your angle, but also your index point and most likely sensitivity.

1
 
 Reply 
 
massimo carminati
Consultant, AUT specialist
IMG Ultrasuoni Srl, Italy, Joined Apr 2007, 691

massimo carminati

Consultant, AUT specialist
IMG Ultrasuoni Srl,
Italy,
Joined Apr 2007
691
19:37 Mar-30-2016
Re: probe output
In Reply to vengadesh at 13:03 Mar-29-2016 (Opening).

Most codes would not allow you to use such a drifted angle from standard. You should recondition the probe or the wedge by adding a new wear sole, but before that you should bring back the original wedge angle to the original value. I warmly not suggest to just use sand paper for doing this.

 
 Reply 
 

Product Spotlight

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
>

PAUT Probes

Typical Phased Array probes have frequencies between 1MHz and 20MHz and the number of wafers is 10
...
to 128. M2 Electronics offers customers conventionally ultrasound probes and the ability to provide high-precision Phased Array Ultrasound Probes of up to 256 wafers. We can also customize the probe for our customers to meet the specific application requirements of the user.
>

HD-CR 35 NDT Computed Radiography System

Portable high-resolution CR scanner for all radiography applications - weld testing, profile images
...
and aerospace. No matter what type of radiographic testing you are performing, the unique TreFoc Technology of the HD-CR 35 NDT imaging plate scanner always guarantees the highest image quality.
>

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
>

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