FIELD: instrumentation. SUBSTANCE: magnetic instrument is exposed to action of field of dipole measure placed at fixed distance from instrument. First frequency corresponding to maximum gain factor is established and its bench mark value is determined. Then measure and tested instrument are brought together and value of current in winding of measure at fixed voltage is measured. After this measurements on selected frequency are conducted and gain factor is determined by given relations. EFFECT: improved accuracy of calibration adjustment. 3 cl, 1 dwg
