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

You can learn everything about roughness from roughness parameters such as Ra and Rz to the advantages/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 microscope (AFM)
-[Area roughness] White light interferometer
-[Area roughness] Profile-Measuring Laser Microscopes
-[Area roughness] Wide-area 3D profile-measuring instrument

Roughness measurement examples

-Roughness measurement examples