Method for measuring resistance, reactance and impedance module of the two-terminal network powered by sinusoidal alternating voltage and the system for measuring resistance, reactance and impedance module of the two-terminal network powered by sinusoidal alternating voltage

摘要

the measured four times at the same time, the instantaneous voltage and current dwu00f3jnika in equal intervals ts, which are less than 1 / 2 of t strain. on the basis of the measurement results is calculated auxiliary parameter? and then calculated the resistance, reaktancju0119 and impedance module dwu00f3jnika supplied current sinusoidalnie variable.analog to digital converter system includes measuring signal value napiu0119ciowego value proportional to current and a second analog to digital converter dwu00f3jnika measuring value signal proportional to the voltage value napiu0119ciowego on dwu00f3jniku.the measurement result of the first analogue to digital converter is sent to the line buffer memory units connected in series four, which results the last four current measurements, and measurement result of the second analog to digital converter is sent to the line joined in series four buffer memory units.the results of our last four voltage measurements.the two line buffers are connected to the calculation of parameters, which are calculated value of the auxiliary parameter? and then calculates the resistance value, reaktancji and impedance module dwu00f3jnika measured first four pairs of values of the instantaneous current and voltage, and measured each another pair of instantaneous current and voltage values.the calculation of parameters, the calculated resistance value, and sends to the interface module reaktancji impedance measurement system.