Correlating Advanced 3D Optical Profiling Surface Measurements to Traceable Standards
Take full advantage of the capabilities of today’s top-performing 3D optical profilers.
This application note discusses the advantages of the non-contact inspection method employed by 3D optical profilers and best practices for correlating measurements to nationally traceable standards, including practical considerations and measurement results for some specialized PTB (Physikalish-Technische Bundesanstalt) traceable roughness standards and other low-cost fingernail roughness gages.
Readers can expect to understand concepts crucial to accurate 3D optical profiler-based inspection, including:
- How this technology correlates to traditional 2D techniques and standards;
- The measurement factors that should be considered for accurate correlation results when imaging and analyzing surface textures ranging in roughness from a few nanometers to micrometers in scale; and
- How the increase of measurement data (3D surface S parameters) can be quantified and utilized.
