Measuring Profile of Coils

Perhaps this might help:

http://www.kla-tencor.com/general-purpose-labs.html?gclid=COHv8sWKr6ICFQUMDQod7yuv3g

It was very close , but I'm looking for a device who measure the variation of thickness , with a resolution of 0.01 mm and a 1000-1500 mm travel .

Anyway , thank you very much !

Most process thickness gauges I am aware of are either time of flight ultrasonic (not common) or radiographic with an x-ray or radioisotope source of known power is on one side and a detector is on the other.

You're right , but my problem is not to find the detector , my problem is to find an automatic device , under PC control .

So why can't you use the same type of device that is used on the mill stand in your lab? I'm not understanding your problem apparently. does it not have adequate resolution? or is the issue you don't want to be bothered trying to figure out how to connect it to Labview and capture the data and present it? Are you simply wanting a turnkey thickness testing jig to buy already made?

The device situated in the rolling mill is integrated in the process ; it can't be removed . In another hand , we want to use it fast , anytime is requested a measure , on anykind of products - cold and hot strips and coils , plates - ours or from outside .

And yes , I want to buy an already made device !

so buy another one just like the one on the mill and connect it to labview and away you go. I don't see the problem.