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Thin film colorimetric interferometry was used to map changes in film thickness in the vicinity of micro-dents of various depths produced on rubbing surfaces. It has been shown in recent studies that shallow micro-features within concentrated contact can increase mean film thickness by supplying more lubricant to the contact; however, this beneficial effect can also be accompanied by a local film...
This paper presents an example of image processing approaches (lookup tables, interpolations, convolution filters, interactive GUI), successfully applied in study of tribological parameters of ball bearings. During the last 15 years, optimized experimental measurement methods were developed for mapping of tribological parameters (lubricant thickness, pressure distribution etc.) of elastohydrodynamically...
In the field of elastohydrodynamic (bearing, gears, etc.) or aerodynamic (hard disks, tape recorders, etc.) lubrication, optical interferometry is the most popular method for film thickness measurement. In 1994, for the first time an image analysis method allowing the automatic treatment of the interferograms was presented. Since then, various teams published numerous literature on this subject. This...
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