The surface structure of a material influences a wide range of its properties, be it tribological and catalytic properties, reflectivity, wavefront deformation, light transmission or reflection, or surface wettability, for example.
Along with technological developments, the quality of surface machining is constantly improving. The need to measure surface texture with high precision is becoming increasingly important. The key parameters are surface roughness, dimensions and shape and its deviation from design.
Not only accurate measurement, but also robust analytical software for data evaluation and subsequent reporting of key parameters is critical to properly obtain and use surface information.
Transmitted wavefront error (TWE) is a complex metric used to qualify the performance of optical elements through which light passes.
The measurement of volumetric surface properties is an indispensable method not only for the analysis of wear on lubricated surfaces, but also in the context of adhesion, porosity or particle distribution.
Non-contact optical measurement of the shape and surface texture of machine tools using the Zygo profilometer.
Non-contact optical measurement of surface shape and micro-roughness of diesel injection components using the Zygo profilometer.
Sub-angstrom surface texture measurement using a Zygo 3D optical profilometer based on white light interference.
Shape metrology can be summarized as the absolute or relative measurement of a surface compared to a basic shape.
Thanks to the technological advances of recent years, it is possible to machine surfaces with ever greater precision. More than ever, high demands are being placed on the quality and accuracy of the surface texture measurement itself.
