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 -

Technical Discussions
16:32 Oct-21-2009
Active Acousto/Ultrasonic testing - AE sensors

Dear all!

I am a little bit confused with something... let me suppose that I want to design a system which will actively send ultrasonic waves through a material and process the receiving signal (after it has crossed the material) in order to evaluate an impact and a damage. Can I use the common Acoustic Emission sensors/transducers by actively pulsing them (like the ones from Physical Acoustics Corporation for example) for producing the required ultrasonic waves? Or these sensors are only for receiving mechanical signals and converting them to electrical voltage? This matter really confuses me and I would appreciate some help.

Thanks in advance!

John O'Brien
Consultant, -
Chevron ETC , USA, Joined Jan 2000, 278

John O'Brien

Consultant, -
Chevron ETC ,
Joined Jan 2000
19:43 Oct-30-2009
Re: Active Acousto/Ultrasonic testing - AE sensors
In Reply to nickagian at 16:32 Oct-21-2009 (Opening).

You can design sensors that pulse and receive in the AE frequency range it depends on what you are looking for in terms of repsonse. Its more common to excite a wave from another source i.e an impact and measure the wave modes propogated. It's all in the sensor design as many sensors in Ae are also sensitive to direction of the wave mode dependent on whether you are looking at waves in the longitudnal, shear of rayleigh mode.
You nee dto tak with the sensor manufacturers more about what you want to do.


Product Spotlight

Aerospace Systems - Automated Ultrasonic Inspection

USL are specialists in the design and manufacture of turnkey ultrasonic inspection systems for aer
ospace applications. From monolithic composites to complex honeycomb structures. This video shows just a few examples of what is possible, find out more at: www.ultrasonic-sciences.co.uk

High-end Ultrasonic Flaw Detector with 32:128PR PAUT and 2-ch TOFD: SyncScan 2

SIUI’s newly launched SyncScan 2, is a high-end ultrasonic flaw detector with 32:128PR PAUT and
2-ch TOFD, which can maximize your efficiency for PA and TOFD. ● Support PA/TOFD/UT ● 32-ch PA is more suitable for inspection on extra-thick wall and high-attenuation material. ● 32-ch PA and 2-ch TOFD work simultaneously. ● Support PR mode for corrosion inspection.

IntraPhase Athena Phased Array System

The Athena Phased Array system, manufactured by WesDyne NDE Products & Technology, consists of a pha
sed array acquisition system and PC running IntraSpect software. A PC is used to perform acquisition, analysis and storage of the data. System hardware is capable of operating up to four data sets with any combination of phased array or conventional UT probes. NOW AVAILABLE IN 64-64 CONFIGURATION.


TKM-459CE combi applies 2 methods of hardness control: UCI and Leeb. It provides high-accuracy tes
ting of metals and alloys as well as items of different sizes and configurations, their hardened layers and galvanic coatings. Device represents results in HB, HRC, HV and others. Shock-, dust- and water-proof housing with intuitive software make this gauge easy to use in all working conditions.

We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
this is debug window