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 -

363 views
Technical Discussions
Phil Malone
Phil Malone
06:01 Dec-14-2004
Ultrasonic propagation along sheet steel.

Hi.

Has anyone seen any papers/studies/equipment related to transmitting ultrasonics along steel plate (1/2" to 1" thick).

I'm specifically thinking a *large* steel storage tank.

I want to inject a signal at one point on the tank and measure the signal at various other points on the tank.

I'm looking for any info/products that relate to fixed transmit 'ducers, movable receive 'ducers, signal attenuation, power levels etc.

Examples of practical components would be FANTASTIC.

Thanks....



    
 
 
Godfrey Hands
Engineering,
PRI Nadcap, United Kingdom, Joined Nov 1998, 289

Godfrey Hands

Engineering,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
289
01:07 Dec-16-2004
Re: Ultrasonic propagation along sheet steel.
----------- Start Original Message -----------
: Hi.
: Has anyone seen any papers/studies/equipment related to transmitting ultrasonics along steel plate (1/2" to 1" thick).
: I'm specifically thinking a *large* steel storage tank.
: I want to inject a signal at one point on the tank and measure the signal at various other points on the tank.
: I'm looking for any info/products that relate to fixed transmit 'ducers, movable receive 'ducers, signal attenuation, power levels etc.
: Examples of practical components would be FANTASTIC.
: Thanks....
------------ End Original Message ------------

Hi,
Sounds like you need to be looking at Guided Waves Ultrasonics in this application.
Guided waves can propagate along plates (and pipes) for hundreds of feet, and can detect defects typically with a single number of percent of wall thickness reduction.
The waves travel through (butt) welds (but will have difficulty on lap welds on tank floors)
Please contact me and we can give you more information about this.

Godfrey Hands
Godfrey@ndt-consultants.co.uk


    
 
 

Product Spotlight

FAAST-PA! OEM Patented phased Array for high speed UT inspection

Multiangle, Multifocus, Multifrequency, Multibeam. Instead of stacking UT electronics and having m
...
any PA probes, FAAST-PA is able to transmit all delay laws within ONE single shot in Real time.
>

Swift & Scorpion2 - a state-of-the-art remote-control ultrasonic crawler

The Swift and Scorpion2 dry-coupled, remote-access ultrasonic crawler bring major efficiency and d
...
ata improvements to tank shell inspections and other structures such as vessels and offshore installations.
>

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.
>

Robotic laser shearography enables 100% inspection of complex, flight-critical composite structures

An article in “Composites World Magazine” showcases Non Destructive Testing of aero-structures
...
with Laser Shearography. Over the years Dantec Dynamics has supplied many solutions for the aerospace industry. Referring to specific customer projects several of these cases are examined to outline the advantages of using Laser Shearography for automated defect detection.
>

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