Abstract: A current transformer core has a ratio of the core outside diameter Da to the core inside diameter Di of <1.5, a saturation magnetostriction ?s of =|4| ppm, a circular hysteresis loop with 0.50=Br/Bs=0.85 and an Hcmax=20 mA/cm. The current transformer core is made of a soft magnetic iron alloy in which at least 50% of the alloy structure is occupied by fine-crystalline particles with an average particle size of 100 nm or less, and the iron-based alloy comprises, in essence, one combination.

Abstract: Disclosed are a marker for a magnetic theft protection system, comprising: (a) at least one oblong alarm strip comprising an amorphous ferromagnetic alloy; and (b) at least one oblong activation strip comprising an alloy consisting essentially of formula NiaMobXcFeRest, wherein X is one or more of the elements from the group including Cr, W and V, and wherein a, b, and c are weight percentages, such that 15% by weight?a?25% by weight, 0% by weight?b?2.8% by weight, 0% by weight?c?8% by weight; and, wherein said activation strip has a coercitive force Hc of 10 A/cm to 25 A/cm and a remanence Br of at least 1.0 T; the activation strip itself, a tag containing the activation strip and/or marker, articles containing the marker or tag, methods for making the activation strip, and methods for making the marker.

Abstract: Disclosed are a braze, such as a braze in the form of an amorphous, ductile brazing foil, having a composition consisting essentially of FeaNirestSibBcMd with 5 atomic percent?a?35 atomic percent, 1 atomic percent?b?15 atomic percent, 5 atomic percent<c?15 atomic percent, 0?d?4 atomic percent, rest Ni and incidental impurities, wherein M is one or more of the elements Co, Cr, Mn, Nb, Mo, Ta, Cu, Ag, Pd or C, and having a liquidus temperature TL?1025° C. Also disclosed are apparatus containing parts joined by said braze, methods for using said braze, and methods for making said amorphous, ductile brazing foil.

Abstract: The invention relates to a method for the production of a soft magnetic core for generators and generator with a core of this type. To produce a core, a plurality of magnetically activated and/or magnetically activatable textured laminations is produced from a CoFeV alloy. This plurality of laminations is then stacked to form a core assembly. Then the core assembly, if consisting of magnetically activatable laminations, is magnetically activated. Finally, the magnetically activated core assembly is eroded to produce a soft magnetic core. A core of this type is suitable for a generator with a stator and a rotor for high-speed aviation turbines, the laminations in the core assembly being oriented in different texture directions relative to one another.

Abstract: The invention relates to an inductive component (10) whose soft magnetic core (11) is produced by pouring a casting resin into a mold (1a) filled with a soft magnetic alloy powder and by subsequently hardening the casting resin with the alloy powder in order to form a solid soft magnetic core. Contrary to conventional injection molding methods, this technique prevents the surface insulation of the alloy particles from becoming damaged so that the formation of bulk eddy currents in the resulting soft magnetic cores can be prevented to a large extent. This enables a distinct reduction in the electric loss of the inductive component.

Abstract: Inductive component (10; 20; 30) having at least one coil (12; 22; 32) and a magnetically soft core (11; 21; 31) made from a ferromagnetic powder composite in which the ferromagnetic powder composite shows an alloy powder mixture made from alloy powders having formanisotropic as well as formisotropic powder particles and a casting resin.

Abstract: An electric heating element is provided with a durable PTC resistance made at least partially of an iron-based alloy, exhibiting stable characteristics to a temperature of 1500 DEG C. and having a resistance/temperature characteristic curve which substantially increases in a linear manner within a temperature range between an ambient temperature and 1500 DEG C. and can be used for a temperature control. The PCT resistance is provided with an oxidation resistant metallization or is gas-tightly enveloped by a jacket (2, 3, 12), a space between the jacket (2, 3, 12) and the PCT resistance (1,13) being filled with a powder or granules (14) which remove an important gas amount from the space.

Abstract: Addressed is a current transformer comprising a primary conductor, a secondary winding and a soft-magnetic core, whereby the primary conductor and secondary winding are electrically insulated from one another and are magnetically intercoupled via the core. In addition, a current to be detected is injected into the primary conductor, and a compensating current is injected into the secondary winding. An additional conductor is provided which is electrically connected in parallel to the primary winding, and which is situated in the area of the core at which a flux rise occurs, whereby the flux rise is at least partially compensated for by the flux elicited by the current flowing in the additional conductor.

Abstract: In a magnetic sensor device, a positioning element is provided with receptacles for receiving one magnetic field sensor element each. The positioning element and the magnetic field sensor elements are manufactured in a way that they fit exactly together so that the positioning element exactly positions the sensor elements with respect to each other. The magnetic field sensor elements may be manufactured separately before they are put together to build the magnetic field sensor device.

Abstract: The invention relates to a method for producing rod-shaped permanent magnets according to which pressed parts (2) are produced that are then assembled to a rod-shaped green product. Said green product is subsequently sintered, whereby a rod-shaped single-piece permanent magnet (1) is produced.

Abstract: Cup-shaped magnet for electric motors having two face surfaces, two lateral surface, and two top surfaces, which are curving between the face surfaces along the lateral surfaces, whereby the lateral faces are chamfered in a v-shape.

Abstract: The invention relates to a transformer comprising a closed probe core (2) consisting of a soft magnetic material, a probe coil (3), at least part of which is wound around the probe core (2), a closed compensation core (1) consisting of soft magnetic material, and a compensation coil (4), at least part of which is wound around the probe core (2) and the compensation core (4). The probe core (2) and the compensation core (4) are arranged in relation to one another in such a way that a conductor (5), which carries a measuring current, can be guided through the probe core (2) and the compensation core (1).

Abstract: The invention relates to a high-strength, age-hardenable, corrosion-resistant maraging type spring steel, which is essentially comprised of 6.0 to 9.0 wt. % of Ni, 11.0 to 15.0 wt. % of Cr, 0.1 to 0.3 wt. % of Ti, 0.2 to 0.3 wt. % of Be and of a remainder consisting of Fe, whose martensite temperature Ms≧130° C. and which has a ferrite content cferrite of less than 3%.

Abstract: The invention relates to a compensation current sensor, comprising a magnet core (M4), with a first section around which a secondary winding (S4) is wound. A magnetic field probe (MS4) is arranged in the vicinity of the secondary winding (S4). A primary winding is magnetically coupled with the secondary winding (S4). A metal screen (A4) is provided at a distance from the magnet core (M4). On the plane, on which the magnet core (M4) lies, the shield (A4) surrounds the magnet core (M4), with the exception of a side opening, whereby part of the opening is in the vicinity of the magnetic field probe (MS4) and arranged and configured such that magnetic flux which passes through the shield (A4), partially passes through the magnetic field probe (MS4).

Abstract: A filter system includes at least two longitudinal branches with longitudinal inductors and at least one filter section (B) and an adjacent filter section (A). The filter section (B) is provided with at least one transverse branch that is interposed between the longitudinal branches, the adjacent filter section (A) adjoining the transverse branch. The number of inductors of a filter section that arc wound around different magnet cores can be reduced by equivalence transformation.