METHOD FOR CORRECTING STATIC CHARACTERISTICS OF MEASURING TRANSDUCERS Russian patent published in 2003 - IPC

FIELD: measurement technology. SUBSTANCE: method includes test experiment involving measurement of transducer output quantities at different combinations of input ones of which one is physical quantity under measurement and other one is noise. Experimental data matrix is constructed, processed by approximation of conversion function of each measuring channel to obtain mathematical model of transducer in the form of two sets of factors each one describing surface of transfer function of respective measuring channel. Then lines of intersection of transfer function surfaces with surfaces of output values of channels and their projections onto input-value surfaces are determined, Input values of each channel are found by calculating coordinates of intersection points of projections. Mentioned approximation of experimental data is made using correction factors determined as values associated with deviation of rated values obtained according to mathematical model from actual values of quantities measured at nodal points of matrix. EFFECT: enhanced measurement accuracy. 3 cl, 8 tbl