The Effects of Selected Measurement Errors on Surface Texture Parameters
Pawel Pawlus1, Rafal Reizer2, Michal Wieczorowski3
1Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, Poland.
Materials (Basel, Switzerland)
|July 27, 2022
Summary
Surface texture measurement errors, like scratches and relocation issues, significantly impact areal parameters. Spatial parameters demonstrated the highest stability against these measurement uncertainties.
Area of Science:
- Metrology
- Surface Engineering
- Materials Science
Background:
- Surface texture measurement using areal parameters is crucial in many industries.
- Measurement errors can significantly compromise the accuracy and reliability of surface texture analysis.
- Understanding the impact of different error types is essential for robust metrology.
Purpose of the Study:
- To investigate the influence of specific measurement errors on areal surface texture parameters.
- To quantify the effect of artificial scratches (circular valleys) on surface texture metrics.
- To assess the impact of time-related measurement discrepancies, including relocation errors and surface changes.
Main Methods:
- Artificial circular valleys were introduced to surface textures measured via white light interferometry.
- Analysis of measurement differences for identical surface details over a three-month period.
- Evaluation of various areal and spatial surface texture parameters.
Main Results:
- Larger artificial scratches led to increased measurement errors.
- Skewness and kurtosis were highly sensitive to the presence of valleys.
- Spatial parameters exhibited the greatest stability when measurements were repeated after a three-month interval, despite factors like relocation errors and surface aging.
Conclusions:
- Areal parameters, particularly skewness and kurtosis, are susceptible to errors like scratches.
- Spatial parameters offer superior stability and reliability in surface texture measurement over time.
- Careful consideration of error sources is vital for accurate surface texture characterization.
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