FIELD: electricity.
SUBSTANCE: to the monitored n-element two-pole network the voltage is supplied as a random signal with uniform amplitude spectrum in the range of frequencies overlapping the range of frequencies outside of which the module of an impedance of the two-pole network can be considered independent from the frequency with pre-set error. On the reference resistor connected in series with the two-pole network the voltage proportional to two-pole network current is measured. Through two parallel channels the temporary realization of signals, supplied to the two-pole network and read from the reference resistor are saved in the computer memory then the spectral densities of voltage and current, frequency dependences of the module and phase of impedance of the two-pole network are estimated, the characteristic frequencies are determined. The system of n equations with reference to parameters of the equivalent circuit of n-element linear two-pole network is made and solved.
EFFECT: decrease of time of measurement of parameters of equivalent circuits of multi-element linear two-pole networks.
2 dwg
