ОЦЕНКА ПОГРЕШНОСТИ РЕАЛИЗАЦИИ МЕТОДА ИЗМЕРЕНИЯ ИНТЕГРАЛЬНЫХ ХАРАКТЕРИСТИК ПО МГНОВЕННЫМ ЗНАЧЕНИЯМ ОРТОГОНАЛЬНЫХ

For efficient measurement and control of the integral characteristics of the signals, which are close to harmonic, widely used methods that provide the definition of the parameters on individual instantaneous values of voltage and current for the time period of less than the input signal. Further reduction of measurement time is made by forming additional signals shifted relative to the input phase, and determining informative parameters on instantaneous values of input and additional signals. The purpose of the work is a theoretical study of a new method of measuring the parameters of harmonic signals. The functional diagram of measuring equipment that implements the method is offered. The results of the analysis of the modulus error and frequency error of phase-shifting units, which implemented the formation of additional signals, are offered.