AGGREGATE MEASUREMENTS OF PARAMETERS OF MULTI-ELEMENT ELECTRIC CIRCUITS

Knyazkov Aleksandr Vladimirovich, engineer, Penza State University (40 Krasnaya street, Penza, Russia),  rtech@pnzgu.ru
Koldov Aleksandr Sergeevich, senior lecturer, sub-department of radio engineering and radio electronic system, Penza State University (40 Krasnayа street, Penza, Russia), rtech@pnzgu.ru
Rodionova Nina Vladimirovna, postgraduate student, Penza State University (40 Krasnayа street, Penza, Russia), rtech@pnzgu.ru
Svetlov Anatoliy Vil'evich, doctor of technical sciences, professor, head of sub-department of radio engineering and radio electronic systems, Penza State University (40 Krasnaya street, Penza, Russia), rtech@pnzgu.ru

621.317.73

10.21685/2307-5538-2018-3-9

Background. The possibility of determining the parameters of multielement electric circuits using the combined measurement method is investigated.
Materials and methods. Mathematical modeling of measuring circuits is performed. The estimation of a random error in the results of measuring the parameters of a four-element electric circuit was obtained by Monte Carlo simulations.
Results. The calculated ratios for determining the parameters of the elements of a four-element RC chain. The estimations of the methodical and random components of the errors in measuring the parameters of the circuit elements. Requirements are formulated for means for obtaining samples of the output voltage of the measuring circuit at fixed instants of time.
Conclusions. The possibility of aggregate measurements of the parameters of multi-element electric circuits with an error of not more than 1 % has been confirmed.

multi-element electric circuits, aggregate measurement, error estimation