Determining the Anhysteretic Magnetization Curve for a Ferromagnetic Material According to the Limiting Loop Parameters of Its Magnetic Hysteresis.

The anhysteretic material magnetization consists in the fact that, simultaneously with a constant magnetizing field having intensity H, an alternating magnetic field is applied to the material, bringing the material to the state of technical saturation, after which the amplitude of the alternating field strength is smoothly reduced to zero. In this case, instead of the initial magnetization curve, one obtains an anhysteretic magnetization curve that is steeper in the case of weak fields and has no inflection point. The use of anhysteretic magnetization is important for attaining an abrupt increase in the sensitivity of different magnetic elements. To simplify the determination of the anhysteretic magnetization curve for a ferromagnetic material, a relationship based on the measurement results for the material magnetization under the conditions of technical saturation, remanent magnetization, and coercive force is developed and substantiated in this paper. An increase in productivity and simplification of determining the anhysteretic material magnetization curve have been achieved owing to the fact that, to determine such a curve, it is necessary to magnetize the material to a technical saturation level only once and, then, to measure the only three magnetic parameters of the saturation hysteresis loop of the material, which can be measured using standard methods with a minimal relative error compared with other magnetic parameters of the material. [ABSTRACT FROM AUTHOR]