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 -

NDTSS - Non Destructive Testing Society of Singapore
Visit us at SINCE 2019
990 views
Technical Discussions
Amy Quinn
Amy Quinn
03:47 Feb-15-2001
Micro-surfaces

Hello, I am doing investigation into the scatter of ultrasound at high frequencies. I need to be able to create "known" regular surfaces on a small scale, for example a micro-pyramidal surface with each pyramid having a base 1 micron by 1 micron. Or maybe a sinusoidal surface - anything so long as it is regular and has features of the order 1-10 microns. I am totally drawing a blank on any companies which might be able to create such surfaces and wondered if any of you could help.

Thanks a lot

Amy Quinn


 
 Reply 
 
Wieslaw Bicz
Engineering,
PBP Optel sp. z o.o., Poland, Joined Feb 2009, 266

Wieslaw Bicz

Engineering,
PBP Optel sp. z o.o.,
Poland,
Joined Feb 2009
266
03:59 Feb-15-2001
Re: Micro-surfaces
: Hello, I am doing investigation into the scatter of ultrasound at high frequencies. I need to be able to create "known" regular surfaces on a small scale, for example a micro-pyramidal surface with each pyramid having a base 1 micron by 1 micron. Or maybe a sinusoidal surface - anything so long as it is regular and has features of the order 1-10 microns. I am totally drawing a blank on any companies which might be able to create such surfaces and wondered if any of you could help.
.
: Thanks a lot
.
: Amy Quinn
.
You should try to make phase hologramms (with mudulation on the surface) - this should fulfill your requirements.


 
 Reply 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 787

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
787
04:34 Feb-20-2001
Re: Micro-surfaces
: Hello, I am doing investigation into the scatter of ultrasound at high frequencies. I need to be able to create "known" regular surfaces on a small scale, for example a micro-pyramidal surface with each pyramid having a base 1 micron by 1 micron. Or maybe a sinusoidal surface - anything so long as it is regular and has features of the order 1-10 microns. I am totally drawing a blank on any companies which might be able to create such surfaces and wondered if any of you could help.
.
: Thanks a lot
.
: Amy Quinn
.
I did reply to Amy Quinn's query to her e-mail. sorry about that because on that day i couldn't access internet. i suggested 3 or 4 alternatives, like making a microhardness indentation, using a densely sintered metallic material which will have a few pores etc. i am waiting for her reaction.



 
 Reply 
 
Yoseph Bar-Cohen
R & D,
Jet Propulsion Lab (JPL), USA, Joined Nov 1998, 26

Yoseph Bar-Cohen

R & D,
Jet Propulsion Lab (JPL),
USA,
Joined Nov 1998
26
06:11 Feb-20-2001
Re: Micro-surfaces
Amy,

Making shapes and structures in the size of microns is
part of the field of micro-electro-mechanical systesm (MEMS).
In order to find an organization that can help you making
the desired features you may want to send an e-mail to the MEMS
Newsgroup at MEMS@ISI.EDU

Yosi
: : Hello, I am doing investigation into the scatter of ultrasound at high frequencies. I need to be able to create "known" regular surfaces on a small scale, for example a micro-pyramidal surface with each pyramid having a base 1 micron by 1 micron. Or maybe a sinusoidal surface - anything so long as it is regular and has features of the order 1-10 microns. I am totally drawing a blank on any companies which might be able to create such surfaces and wondered if any of you could help.
: .
: : Thanks a lot
: .
: : Amy Quinn
: .
: I did reply to Amy Quinn's query to her e-mail. sorry about that because on that day i couldn't access internet. i suggested 3 or 4 alternatives, like making a microhardnessindentation, using a densely sintered metallic material which will have a few pores etc. i am waiting for her reaction.
.



 
 Reply 
 

Product Spotlight

A1525 SOLO

A1525 Solo – the most compact and affordable TMF unit with two phased array transducers and 3D v
...
isualization and analysis software in standard delivery set. A compact, ergonomic and easy to handheld Phased Array unit based on Total Focusing Method for easy-going imaging of inspection objects with two-dimensional and three-dimensional visualization and evaluation of inspection results.
>

IRIS 9000Plus - Introducing the next generation of heat exchanger inspection.

Representing the seventh generation of the IRIS system, the IRIS 9000 Plus has nearly 200 years of c
...
ombined field inspection experience incorporated in its design. This experience combined with a strong commitment to quality and a history of innovation has made Iris Inspection Services® the undisputed leader in IRIS technology.
>

Conformable wedge transducer

The conformability is obtained with a flexible membrane filled with water between the transducer and
...
the inspected component. The coupling between the membrane and the component requires a small quantity of water or couplant. The conformable wedge combines the acoustic performance of immersion technique with good coupling and low attenuation.
>

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.
>

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