WATTMETRIC METHOD OF IMPEDANCE MEASUREMENT

František Senček - Lívia Syrová

   The article treats the wattmetric method of impedance measurement. There are several possibilities how to calculate the magnitude and phase angle of impedance from the measured quantities. Diverse procedures are not equal with regard to the difficulty of calculation and some of them are embarrassed by a systematic error caused by the internal consumption of the measuring instruments. A second problem is the fact that the method of calculation influences also the limiting error of the final result (linear propagation law).

Keywords: measurement, impedance, amplitude of impedance, phase angle of impedance

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