Barkhausenrauschen Analyse - die Eigenschaften
Barkhausen noise gives information from the surface and very close area beneath the surface. Barkhausen noise signal has a wide power spectrum starting from the adjusted magnetizing frequency and ending above 2 MHz in most of the ferromagnetic materials. The effective depth of signal
penetration is between 0.01 mm and 1 mm. Barkhausen noise signal is damped due to skin effect which is caused by the opposing eddy currents induced by the changing magnetic field.
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