A.O. Smirnov1, O.E. Dick2, E.A. Frolova3, V.E. Titov4

1–4 Saint-Petersburg State University of Aerospace Instrumentation (St. Petersburg, Russia)

The creation of new designs of small-sized electrical measuring devices raises questions about the applicability of old methods of processing output signals. In particular, is it possible to process the time series of the output signals of the device under study using standard methods of mathematical statistics? The paper investigates the time series of output signals of a microelectromechanical accelerometer for the presence of signs of chaotic determinism in it. The results of applying the method of reconstruction of the attractor of a nonlinear dynamic system to the data under study are presented. It is shown that it is impossible to determine one of the indicators of the measure of complexity and randomness of non-stationary signals – the magnitude of the correlation dimension. As a result, it is concluded that there are no signs of chaotic determinism in the analyzed signals, therefore, the presented signals can be processed using mathematical statistics methods. The obtained results allow us to conclude that there is no need to make significant changes in the organization of production of measuring devices based on the studied accelerometer, since there is no need to fundamentally change the methods of processing output signals.

Smirnov A.O., Dick O.E., Frolova E.A., Titov V.E. Investigation of the micro-electromechanical accelerometer as a nonlinear dynamic system. Science Intensive Technologies. 2021. V. 22. № 8. P. 80−86. DOI: https://doi.org/10.18127/j19998465-202108-12 (in Russian)

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