Abstract:
The present invention relates to an electrical transformer comprising an electrical insulator and a winding of an electrical conductor around a core, said insulator being formed of an essentially non-porous composite material comprising a resin matrix and up to 85% by weight of insulating fibres surrounded by the resin matrix, the composite material having a maximum moisture content of less than 0.5% by weight at 23°C and 50% relative humidity.
Abstract:
A piezoelectric device having a piezoelectric film and methods of making such. The piezoelectric device can be used in circuits to dampen or dissipate vibrations in equipement such as racquets, and ski apparatus.
Abstract:
A method of manufacturing an active element for use with a magnetic head includes depositing a magnetic material to form a magnetic member (24), and nitriding the magnetic member after the depositing step. Preferably, the depositing step comprises depositing nickel-iron alloy, and the nitriding step comprises plasma nitriding the magnetic member. Advantageously, plasma nitriding may be performed at a temperature below 300 degrees Celsius to avoid adverse effects to components of the active element, such as organic planars. Active elements manufactured according to the method of the invention are also disclosed.
Abstract:
An inductor coil for an inductive energy transfer system includes multiple layers of a single wire having windings that are interlaced within at least two of the multiple layers such that both an input end and an output end of the wire enter and exit the coil on a same side of the coil. The input end and the output end of the wire may abut one another at the location where the input and output wires enter and exit the inductor coil. The wire can include one or more bundles of strands and the strands in each bundle are twisted around an axis extending along a length of the wire, and when there are at least two bundles, the bundles may be twisted around the axis. At least one edge of the inductor coil can be formed into a variety of shapes, such as in a curved shape.
Abstract:
Isolation of magnetic layers in the magnetoresistive stack is achieved by passivation of sidewalls of the magnetic layers or deposition of a thin film of non-magnetic dielectric material on the sidewalls prior to subsequent etching steps. Etching the magnetic layers using a non-reactive gas further prevents degradation of the sidewalls.
Abstract:
The invention relates to an arrangement for providing a vehicle with electric energy, wherein the arrangement comprises a generating device (3) adapted to generate an alternating electromagnetic field for inducing an alternating electric current by magnetic induction in a corresponding receiving device, wherein the arrangement comprises a base (1) to which the generating device (3) is attached, which base (1) defines a vehicle location (2) where a vehicle may be placed or may travel through, an elevated region (5) sideways of the vehicle location (2), wherein an upper surface of the elevated region (5) is elevated compared to an upper surface of the base (1) under the vehicle location (2), an elongated profile (6) comprising an electrically conducting material and/or comprising a magnetizable material, wherein the elongated profile (6) is attached to the elevated region (5) and extends along the extension of the generating device (3) in a longitudinal direction of the arrangement and wherein the elevated profile - if viewed in a cross sectional area perpendicular to the longitudinal direction – extends upwards towards a level of the upper surface of the elevated region (5) and also extends towards the vehicle location (2).
Abstract:
A method for making a credit card (10) (or other type of data storing card) comprising a magnetic strip (26) includes the step of depositing a magnetic recording layer (34) on a substrate (20, 41), cutting the substrate into strips (26, 26', 26"), and mounting the strips onto the credit card. In one embodiment, the strips comprise glass that is sufficiently thin to be bendable. The magnetic recording layer (34) is sputtered onto the glass using a high temperature sputtering apparatus. In another embodiment, the substrate is a metal foil (60). The data recording capacity of the magnetic strip is greater than that which can be achieved by using particulate media.
Abstract:
Method of manufacturing a multilayer structure, in which method gold is deposited on a basic layer (3, 11) for forming a gold layer (7, 13), whereafter aluminium oxide is deposited on the gold layer for forming an aluminium oxide layer (9, 15). Silicon oxide is deposited on the aluminium oxide layer by means of PE-CVD for forming a silicon oxide layer (11, 13), and the aluminium oxide layer constitutes an adhesive layer between the gold layer and the silicon oxide layer. Together with the aluminium oxide layer, the silicon oxide layer constitutes an insulating and/or protective cladding layer for the gold layer.
Abstract:
An inductor coil (1100) for an inductive energy transfer system includes multiple layers of a single wire (900) having windings that are interlaced within at least two of the multiple layers such that both an input end (1102) and an output end (1104) of the wire (900) enter and exit the coil (1100) on a same side of the coil. The input end (1102) and the output end (1104) of the wire (900) may abut one another at the location where the input and output wires enter and exit the inductor coil (1100). The wire (900) can include one or more bundles (602, 604) of strands and the strands in each bundle are twisted around an axis extending along a length of the wire (900), and when there are at least two bundles, the bundles may be twisted around the axis. At least one edge of the inductor coil (1100) can be formed into a variety of shapes, such as in a curved shape.
Abstract:
An apparatus includes a housing, a solenoid coil disposed within the housing, a pole member, and an armature configured to move from a first position to a second position when the solenoid coil is energized. A contact surface of the armature is spaced apart from a contact surface of the pole member by a first distance when the armature is in the first position, and a second distance when the armature is in the second position. The housing, the pole member and the armature collectively define a flux path characterized by a first reluctance when the armature is in the first position and a second reluctance when the armature is in the second position. The difference between the first reluctance and the second reluctance is less than about thirty percent of the value of the first reluctance.