Processing in time domain of 3-D measured data

This research paper deals with strategies and algorithms for development of the computational techniques in the field of 3-D metrology. Very often a mechanical surface has to be analyzed for presence of either deterministic or random components of the signals while scanning. It is necessary to obtain maximum information on the geometrical errors, as well as about the factors causing certain roughness or surface wear. An approach, separating such components is proposed and discussed. The design of the experiment is based on the correlation analysis (in particular, on the analysis in time domain of the autocorrelation curve attenuation).