Intelligent methods of measurement of the parameters of vector quantities

Measurement of vector quantity parameters (RLC-parameters, power components etc.) is performed, as a rule, at fixed frequencies by using synchronous detection or in the frequency range (measurement of power components) on the basis of the scalar product of vectors. In this case, very often, the error resulting from the effect of tg /spl phi/ greatly exceeds the error of the synchronous detector or the analogous multiplier; that is why the synthesis and research into new methods leading to the reduction of the tg /spl phi/ effect on the measurement results are rather urgent.