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 -

AT-Automation Technology GmbH
AT -Automation Technology is a systems house for industrial image processing. AT offers thermographic ndt systems as well as high-speed 3D sensors.

1049 views
Technical Discussions
Tina Wilhelm
Engineering, Research Assistant
Institute for Concrete Structures, Germany, Joined Oct 2001, 1

Tina Wilhelm

Engineering, Research Assistant
Institute for Concrete Structures,
Germany,
Joined Oct 2001
1
05:37 Jul-04-2002
ultrasonic attenuation in concrete

What kind of pulse signal and analysis makes most sense for measurements of ultrasonic attenuation in concrete in the the case of longitudinal waves and ultrasonic transmission?
Who made som experience with different results for different signals and their analysis?



    
 
 
Christian Grosse
Teacher,
Technische Universität München, Germany, Joined Nov 2000, 11

Christian Grosse

Teacher,
Technische Universität München,
Germany,
Joined Nov 2000
11
07:29 Jul-05-2002
Re: ultrasonic attenuation in concrete
: What kind of pulse signal and analysis makes most sense for measurements of ultrasonic attenuation in concrete in the the case of longitudinal waves and ultrasonic transmission?
: Who made som experience with different results for different signals and their analysis?
:
.
Dear Mrs. Wilhelm, there are numerous papers about that issue as well as some measurements from different authors, e.g.:
Berthelot, J.M.; Ben Souda, M.;Robert, J.L.: "Study of wave attenuation in concrete", J. Mater. Res. 8, 1993, Nr.9, S. 2344-2353
Landis, E.N., Sha, S.P.: " Frequency-based dependent stress wave attenuation in cement based materials", J. Eng. Mech., 121, 1995, S.737-743

More recent measurements are from Koeppel (ETH, Zuerich) and Nahrath (RWTH Aachen).
Some own results I can send you directly and not through this board.
Regards, Christian



    
 
 

Product Spotlight

IK4-IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque technology centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system
...
for 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
>

Ultrasonic Testing Immersion Tanks with Unmatched Scanning Features

TecScan’s non-destructive testing Ultrasonic Immersion Tanks & scanners are designed for high perf
...
ormance and demanding NDT testing applications. Our Scan3D™ line of High Precision Immersion Tanks are specifically designed for automated ultrasonic testing of complex composites parts used in aerospace and industrial applications.
>

NEW! The PragmaPro Instrument Platform

The PragmaPro is based on a modular cartridge technology and supports various NDT instrument modal
...
ities such as UT, PAUT, ECT and many more. This new platform is based on a machined, powder-coated aluminum frame for shock-proofness, best sealing qualities and maximum heat dissipation. This is practical to extend the outdoor temperature range and/or to extend the power injected in the transducers. The PragmaPro is aiming at a very wide range of applications, such as weld scanning, corrosion mapping and composite testing.
>

Spot weld inspection with Phased Array – PHAsis.one

The first PAUT spot weld inspection device offering a physical resolution of the spot weld diamete
...
r better than 0.35mm. Precise: more than 700 real UT measurements per spot weld. Easy to go: minimal training required due to the user friendly inspection software. Be sure: safe evaluation due to the imaging result display and automated creation of an evaluation proposal for the spot weld quality.
>

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
s