DEVICE FOR CONTACTLESS MEASUREMENT OF HEAVY DIRECT CURRENT Russian patent published in 1997 - IPC

FIELD: blast furnace, chemistry. SUBSTANCE: device has non-magnetic frame which has n measuring elements each of which has non-magnetic spaces in magnetic circuit. Demagnetization indicator (Hall detector) is located in one such space and is connected through pulse generator to first input of memory unit which second input is connected to output of integrator which input is connected to output of first additional winding. Integrator provides information about demagnetization flux. Output of memory unit serves as output of measuring element and is connected to adder which adds information from all measuring elements. EFFECT: increased precision. 2 cl, 8 dwg