СПОСОБ ОПРЕДЕЛЕНИЯ МАГНИТНОЙ ПРОНИЦАЕМОСТИ ЦИЛИНДРИЧЕСКИХ ФЕРРОМАГНИТНЫХ ПРОВОДНИКОВ

摘要

FIELD: measurement technology. ^ SUBSTANCE: cylindrical conductor with radius of r and specific conductivity of delta is connected to secondary winding of step-down transformer through reference resistor. Primary winding of step-down transformer is connected with ac generator with f frequency. Longitudinal resistance Z of tested cylindrical conductor is measured at 1-meter length section. Magnetic conductivity mu is determined from the relation of mu=(Z²r²upsilon)/(2f10¯7). ^ EFFECT: reduced labor-intensity due to measurement of conductor's resistance. ^ 1 dwg