'Introduction to Roughness' is an information site offering knowledge about profile and surface roughness measurements.

Here you can learn everything about roughness, from roughness parameteres such as Ra and Rz to the advantages and disadvantages of surface roughness measuring instruments.

Introduction to Roughness Table of Contents

What is line roughness?

-What is surface roughness?
-Surface Roughness Terminology
-Surface Roughness Parameters

What is area roughness?

-What is surface (area) roughness?
-Surface (area) roughness terminology
-Evaluation process and filtering
-Area Roughness Parameters
-Differences between ISO 25178 and JIS B 0601-2001

Instruments used for roughness measurements

-[Line roughness] Contact-type surface roughness/profile measuring instruments
-[Line roughness] Non-contact surface roughness/profile measuring Instruments
-[Surface roughness] Side-by-side comparison of roughness measuring instruments
-[Area roughness] Contact-type surface roughness/profile measuring instruments
-[Area roughness] Atomic force microscopes (AFM)
-[Area roughness] White light interferometers
-[Area roughness] Wide-area 3D profile-measuring instrument

Roughness measurement examples

-Roughness measurement examples