Linear lossy ferromagnet - opracowanie

Linear lossy ferromagnet If we are prepared to consider small signals, and the sinusoidal steady state, we canmodel
the behaviour of a material in which the magnetisation lags somewhat behind a sinusoidal
magnetic field excitation by the equations
M = (χ0
m − jχ00
m) H (5.15)
B = (μ0 − jμ00) H (5.16)
The linear lossy ferromagnet model is tantamount to replacing the hysteresis curve of
Figure 5.1 by an ellipse. Although the model does not exhibit the saturation phenomenon
shown in that figure, at least the energy loss property of the hysteresis curve is retained
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