Hi, Rich,
1> by means of phonograph, maybe a little modified, in practice a diamond that is moved at different speeds over the surface, movement felt by transducer that sends electrical signals to PC and makes chart, OR, you can supersede the diamond with laser beam. Simple tech but expensive equipments, typical 100kdollars.
2>se above
3>microinches or microns, sometimes nano (thinfilms), peak-to-peak, arithmetic mean value, most oftenly Ra=
4>fine plate Ra=1microns or less, rough plate Ra=10microns or more
5>plenty of
6>Try TENCOR and UMD, print 'surface profilers' on your crawler and you'll get many more.
Additional: if you have a shaky ground, you may have to put the machine on a diabase table.
Ingemar Hernefjord
Ericsson Microwave Systems
-----Original Message-----
From: David Fish [mailto:[log in to unmask]]
Sent: den 27 juni 2000 05:55
To: [log in to unmask]
Subject: Re: [TN] Surface Roughness Measurement
Richard: "Quality Magazine" (http://www.qualitymag.com) has published several articles
on surface roughness over the past few years. These cover abroad range of issues and
may be a good starting point for your investigation. Several of these articles are
on-line and can be found at their site by "searching."
Dave Fish
"Olsen, Richard" wrote:
> Hi All,
> 1) How do you measure surface roughness of plated gold?
> 2) How many different techniques exist?
> 3) What are the units of such measurements?
> 4) What range of values is generally seen?
> 5) Are there contract labs that will do this measurement?
> 6) What is the name and number of equipment manufactures for testing
> equipment?
> Thanks
> Rich Olsen (602)-824-8900
>
> [log in to unmask]
>
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