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 -

Acoustic Emission Consulting, Inc.
Acoustic Emission Consulting, Inc. specializes in the design of small portable AE instruments for field and lab use.
377 views
Technical Discussions
kanaka raju
kanaka raju
09:33 Sep-24-2007
guided waves

Hello everyone, i have two basic doubts regarding guided waves.

1. The physics behind the occuring of number of modes in thin plates (guided waves) rather than in thick plates?

2. what is the main use of dispersion curves in guided waves?

please help me in clearing these doubts.


    
 
 Reply 
 
Alex Haig
Alex Haig
06:24 Nov-13-2007
Re: guided waves
----------- Start Original Message -----------
: : Hello everyone, i have two basic doubts regarding guided waves.
: : 1. The physics behind the occuring of number of modes in thin plates (guided waves) rather than in thick plates?
: : 2. what is the main use of dispersion curves in guided waves?
: : please help me in clearing these doubts.
: Hello,
: 1) The possible thickness of the plate depends on the material of the plate.
: 2) Dispersion curves give the wave velocity against the frequency*thickness of the plate for each mode.
: See "Dispersion Curves in Guided Wave Testing" - Link below.
------------ End Original Message ------------

http://www.asnt.org/publications/materialseval/basics/jan03basics/jan03basics.htm


    
 
 Reply 
 

Product Spotlight

GEKKO - Portable Phased Array Testing with TFM in Real-Time

The portable phased array testing system GEKKO provides 64 parallel test channels. On creating testi
...
ng parameters the operator is assisted by the CIVA software. Due to its modular set-up the GEKKO instrument is suitable for operators of all skill levels.
>

GUL QSR1® Scanning

How do you measure pipe wall thickness without direct access to the area? QSR® Scanning - Guide Wav
...
e Quantitative Short Range Scanning.
>

SONOAIR - air-coupled Phased Array Ultrasonic Inspection System

For highly attenuating materials, the performance of the system is critical. The ultrasonic sensors,
...
the scanning area and the system settings should be flexibly adapted to the test task and the material. These high expectations are met with the new and modular testing system SONOAIR. With the world’s first air-coupled phased-array UT inspection system SONOAIR we developed a technology that works with up to 4 transmitter and receiver channels with freely configurable square wave burst transmitters as wells as low noise receiving amplifiers.
>

TESTD-PT SYSTEM

Pulse thermography is a non-contact test method that is ideal for the characterization of thin fil
...
ms and coatings or the detection of defects. With a remarquable short test time and a high detection sensitivity, the Telops TESTD-PT is the perfect tool for non- destructive testing. With such high frame rates, it is even possible to investigate highly conductive or diffusive materials.
>

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