A new virtual instrument, which allows to investigate deterministic and random components of the process under examination jointly with the calculation on uncertainties is presented in the paper. The instrument handles on-line data collected, which are uniformly sampled in time. The instrument has a extensive software procedures, which analysis periodical and nonperiodical components identified in collected data, and random effect. The several experiments of the application of the instrument were conducted and the results are presented in the paper.
virtual devices, workings of results, evaluation of uncertainty