Surface Profilometry and Roughness

Keyence 7000N Measuring Surface Roughness of Floor Tile
The Keyence 7000N provides the surface profile of this floor tile on the center horizontal and vertical lines through the pictured area and a list of surface roughness parameters.

Keyence 7000N Digital Optical Microscope as Profilometer

The Keyence 7000N uses its automatic multi-focusing planes feature to measure the distance between focal planes for microscopic features. The microscope has magnification ranges from 20X to 2000X and uses either ring or coaxial illumination. It has an optional software package for surface profilometry and surface roughness measurements.

Linear and surface roughness parameters can be measured for a surface along a line or for a surface area. The 3-dimensionally focused surface can be referenced to a fitted plane for tilt correction or to fitted spheres or cylinders. The measured surface parameters are:

Sa, Arithmetic mean deviation

Sq, Root mean square deviation

Ssk, Skewness

Sku, Kurtosis

Sp, Maximum peak height

Sv, Maximum valley depth

Sz = Sp + Sv

Examples of Surface Profilometry and Roughness

Rough floor tile surface at 300X with vertical and horizontal surface profiles and with calculated surface area roughness parameters
Rough floor tile surface at 300X with vertical and horizontal surface profiles and with calculated surface area roughness parameters. Sa = 5.12 microns
Surface Roughness of Copper Coating on Fiberglass Reinforced Epoxy Board
A copper coating on fiberglass-reinforced epoxy board is shown at 1000X using ring illumination. Vertical and horizontal line surface profiles and the surface roughness parameters are shown. Sa = 0.21 microns.
Roughness of used SiC abrasive paper of 240 grit. 500X magnification image using ring lighting.
Roughness of used SiC abrasive paper of 240 grit. 500X magnification image using ring lighting. Sa = 13.10 microns.