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 -

Volume Graphics GmbH
By choosing Volume Graphics software, you can rely on more than 20 years of experience in the development of software for non-destructive testi ...
649 views
Career Discussions
vladimir perez
vladimir perez
02:53 Sep-28-2007
multi echo

Hi everybody...........I'd like to know about "use of multi-echo equipment" to make thickness measurements on coatings.

Please, can someone send any informations about that?

please send at: enimsa.tpa@gmail.com

thanks

Eng. Vladimir Perez P.



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

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
06:08 Oct-01-2007
Re: multi echo
Multi-echo measurement, more commonly known as echo-to-echo measurement, is a technique that is available on many ultrasonic thickness gages and flaw detectors, used to measure the thickness of a metal substrate beneath a non-metallic coating without including the coating thickness. In that sort of situation (like thick paint over a steel pipe), there will be multiple backwall echoes from the metal but only a single echo from the coating. The time interval between any two of the metal backwall echoes represents one round trip of the sound wave in the metal, so by measuring that interval the instrument measures the metal thickness only.


 
 Reply 
 

Product Spotlight

Navic - Steerable Modular Automated Scanner

The Navic is a modular, motorized, steerable scanner designed to carry multiple attachments used
...
in various scanning and inspection applications. The Navic is capable of weld scanning (girth welds and long seam welds), automated corrosion mapping, and tank scanning.
>

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
>

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

Research and Applications Development For NDT

The Research and Applications Development (RAD) group is a newly formed team within Acuren dedicat
...
ed to tackling challenging inspection problems. Our focus is the development of novel, field deployable, advanced inspection techniques for use in cases where standard NDT methods are ineffective. We don't wait for new innovations, we engineer them. From concept to commissioning.
>

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