A Fast and Accurate Method for Phase Angle Autocalibration in the Stable Source of AC Voltage and Current

The paper describes a new method for fast and accurate autocalibration of the phase angle between the two channels in the stable source of AC voltage and current using a slight modification of the asynchronous sampling method which has already been used for measurement of voltage and current with very good results. Mathematical background and results of measurement are included in the paper. Using the proposed method for phase angle calibration the two-channel source of AC voltage and current can serve as a high-performance calibrator for AC quantities such as voltage, current, power, phase angle/power factor etc