Abstract
A modified d.c. permeameter is described which, while retaining the refinement of separate compensating m.m.f. for flux leakage, does not involve the usual tedious and time-consuming measurements. A saturable-inductor type of field-measuring device is used to give automatic and continuous indication of the required compensatingcoil current at all points on the B/H curve or loop. Values of H from 10?3 oersted upwards may be measured.
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