Altana BYK wave-scan 3 User Manual

2 | System Description BYK-Gardner GmbH
14 wave-scan 3 / wave-scan 3 dual 301 200 085 E 2309
2.2 Measurement Principle
The wave-scan 3 is the objective eye for a brilliant finish. It provides quality con-
trol and troubleshooting for class A surfaces.
Surface appearance changes with the size and distinctness of wavy structures. The
wave-scan analyzes waviness intensity with 5 wavelength ranges (0.1 mm - 30
mm) and evaluates the brilliance of the surface. The results form a “structure spec-
trum" and help to analyze and optimize the surface quality based on material
and / or process parameters.
2.2.1 Measurement of Waviness
The wave-scan simulates visual perception. Like our eyes, the instrument optically
scans the wavy light / dark pattern. A laser point light source illuminates the speci-
men at a 60° angle and a detector measures the reflected light intensity at the
equal but opposite angle.
The instrument is rolled across the surface and measures point by point the optical
profile of the surface across a defined distance. The wave-scan analyzes the struc-
tures according to their size. To simulate the human eye’s resolution at various dis-
tances, the measurement signal is divided into several ranges of wavelength using
mathematical filter functions.

Altana BYK wave-scan 3 Specifications

General

Brand	Altana
Model	BYK wave-scan 3
Category	Measuring Instruments
Language	English