FIELD: measurement technology, test and measurement of components of impedance of two-terminal networks displaying inherent emf, biological objects included. SUBSTANCE: technical aim of proposal is provision for rigorous simultaneous determination of values of parameters of impedance in the form of continuous analog signals dynamically adequate to each measured parameter with exception of necessity of usage of controlling signals whose frequency exceeds working frequency of measurement. In correspondence with method first sinusoidal voltage and two rectangular voltages synchronous with it are formed in step. Voltages are formed so that front of first rectangular voltage coincides with moment of transfer of first sinusoidal voltage through zero and front of second rectangular voltage is shifted with reference to specified moment through quarter of period. First sinusoidal voltage is fed to analyzed impedance with generation across its output of second sinusoidal voltage with amplitude proportional to modulus of analyzed impedance and phase shift relative to first sinusoidal voltage equal to phase shift of analyzed impedance. Processing of generated signal in the form of second sinusoidal voltage is carried out with simultaneous participation of first and second rectangular voltages by way of separate multiplication of each of specified voltages with second sinusoidal voltage with subsequent filtration of resulting signals. Value of active component of impedance is estimated by filtered resulting signal of multiplication of second sinusoidal voltage with first rectangular voltage and value of reactive component of impedance is conjectured by filtered resulting signal of multiplication of second sinusoidal voltage with second rectangular voltage. EFFECT: provision for simultaneous determination of values of parameters of impedance. 2 cl, 2 dwg
