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 -

Airstar Inc.
Application of the newest technologies, such as air-coupled ultrasound, digital instrumentation, signal processing, and transducer technology.

264 views
Technical Discussions
Heather Willkinson
Heather Willkinson
03:37 Jun-10-2003
Using angle beam transducer and deicphering signals on digital oscilloscope

Hi Friends;
I am using ultrasonic angle transducer for detection of cracks. Me Exciter pulser is in pulse echo mode. I want to know at what pace should I move me transducer so that I get good results. Further more, how one can determine the exact location of cracks by looking at the digital signals in the oscilloscope. How to develop the skill of precision in deciphering signals for cracks.
Cheers
Heather


    
 
 
Mike
Mike
01:49 Jun-10-2003
Re: Using angle beam transducer and deicphering signals on digital oscilloscope
: Hi Friends;
: I am using ultrasonic angle transducer for detection of cracks. Me Exciter pulser is in pulse echo mode. I want to know at what pace should I move me transducer so that I get good results. Further more, how one can determine the exact location of cracks by looking at the digital signals in the oscilloscope. How to develop the skill of precision in deciphering signals for cracks.
: Cheers
: Heather
.

Heather, you just have to be kidding, right?

*Maximum* scanning speed is usually given in specs as 150mm/sec. Mostly you have to be going much slower than this.
Exact location is calculated using simple trigonometry.
I sincerely hope you're only scanning test pieces as practice for the training course you're going on!


    
 
 

Product Spotlight

Exertus Dual 120

The Exertus Dual 120 Projector has the ability to accept Iridium 192 sources or Selenium 75 source
...
s. This projector incorporates design and safety features that make it flexible, compact and lightweight. The Projector is lighter than most of its competitors. It incorporates an improved source channel, based on a new helicoidal design, which makes maintenance easier. The helicoidal design also allows smoother movement of the source assembly inside the device, making it easier for the operator and improving safety. The Projector also has a unique safety feature not found in competitive products. The source assembly locking mechanism is triggered by the source holder capsule at the front of the source assembly, thereby always assuring the operator that the source has returned to the safe position. The Exertus Dual 120 is ISO3999:2004 compliant.
>

NEW Wheel Type Phased Array Probe

DOPPLER NEW Wheel Type Phased Array Probe, more stable, new tyre makes lesser acoustic attenuation
...
, much lighter makes easier to handle, more slim size, magnetic and mechanical encoder optional etc...more
>

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.
>

X-ray CT aids research into defect formation in AM parts

X-ray CT is used to research how additive manufacturing process parameters influence defect format
...
ion in AM parts.
>

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