摘要:
The invention relates to a method and to a device for carrying out a manufacturing process in which all magnet cores to be produced are first continuously crystallized. Depending on whether the required hysteresis loops should be round, flat or rectangular, the magnet cores are either immediately finished, that is enclosed in housings, conditioned to a rectangular hysteresis loop in a direct-axis magnetic field or to a flat hysteresis loop in a magnetic cross-field and then finished.
摘要:
A magnet core wound from a soft magnetic strip is required to have a relative permeability μr which is enhanced by reducing mechanical stresses. For this purpose, the soft magnetic strip is coated with a static friction reducing material on at least one side. This is at least partially burned off during the heat treatment of the magnet core. Its annealing residue is left behind, so that layers of soft magnetic material alternate with layers of the annealing residue of a static friction reducing material in the cross-section of the magnet core.
摘要:
In the ISDN telecommunication system, the connection between a digital local exchange and the network termination ensues via a public two-wire line at whose ends what are referred to as U-transformers reside. When the network termination leads to a terminal subscriber, then this is called a U.sub.k0 interface whereat the line length between the transformers can amount to up to 8 km. The bit error rate of the transmitted pulses must be