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Materials Matter : Roughness Measurement Tips: Calibration, the Razor Blade Test

Roughness measurement tips: Calibration, the razor blade test

by MARK MICHAUD

REM TECHNICAL FELLOW — —REM SURFACE ENGINEERING

If a problem is found with a contact stylus profilometer during routine check with a Rubert-Song specimen, do a little troubleshooting before sending it off for calibration and recertification. In my previous column in Materials Matter, I reviewed the use of the “Scratch Pad” for the overall checking of the contact stylus profilometer’s calibration. Use of a Rubert-Song D-type precision…


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