The nonlinear dynamic systems and their dynamic variables as the objects of measurement are considered in the article. The peculiarity of such systems is their ability to change dynamic modes: deterministic, chaotic, random. Metrological approaches and measurement models for characteristics of such systems are researched here. The Shannon entropy is considered as an effective tool for assessing a mode of the measured dynamic variables and a measurement uncertainty. The normalized entropy scale that allows to quantify the degree of organization for researched system is proposed.
open non-linear dynamic system, a dynamic variable, measurement uncertainty, Shannon entropy, entropy scale