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where expertise comes together
- since 1996 -

Hillger Ing. Büro
was founded in 1984 and develops special ultrasonic imaging systems for high-tech materials.

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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


    
 
 
Wieslaw Bicz
Wieslaw Bicz
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.


    
 
 
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.



    
 
 
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.
.



    
 
 

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