On Wed, 3 Dec 2003 16:09:36 +0200, you wrote:

>Hi there,
>
>The problem which requires to be solved its a small distance measurement
>at high speed (about 15cm/second) in a high EM radiation environement
>(near a few KW generated from 300KHz inductors). The medium distance to =
be
>measured is about 2mm, between a a metal surface which have inflexions
>(it's not a plane surface) and a moving tool. The metal surface is =
painted,
>dirty and gruffly, where the paint+dirt have a variable thickness.
>The generators can't be shutted off while the measurement is performed.
>I will be glad to hear any possible ideea from specialists (or just
>thinkers) from these lists.
>
>thank you in advance,
>
>Vasile
>http://surducan.netfirms.com

What resolution/range do you need ?
Do you want to measure the distance to the paint/dirt, or to the metal =
surface regardless of
contamination ?

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