Application Of Heterodyne Nrofilometry And Digital Image Processings To The Stufiilly Of Erosion Phenomena

An optical heterodyne profilometer has been developped to get parameters of profiles such as roughness, skewness... Now, it is associated with image processings for automated pattern recognition. Their applications, either on calculated profiles or interference patterns, lead to features of defects on a surface. This device can be a useful tool for the study of erosion phenomena.