259 results about "Magnetic wires" patented technology

Digital information is stored in an unpatterned magnetic film, using the inherent, natural properties of the domain walls in ferromagnetic materials to write data on an unpatterned magnetic film. Data is read from the unpatterned magnetic film using magnetic tunneling junctions (MTJs). To achieve sufficient thermal stability, the magnetic fields required to change the orientation of these magnetic regions may be much larger than can be provided by currents passing through wires. This larger magnetic field is achieved by using the domain wall fringing field generated at the boundary between two magnetic domain walls. The magnetic regions are written by using the fringing fields from magnetic domain walls in neighboring magnetic wires. These wires are brought close to the magnetic storage layer where the magnetic storage regions are to be written.

The present invention is directed to an inductively driven electromagnetic linear actuator arrangement employing eddy currents induced by a fixed drive coil to drive its armature. Eddy current focusing fields are employed to direct the eddy currents using Lorentz forces to maximize armature speed. The armature includes a shorted driven coil in a DC magnetic field. This can be supplied by a permanent magnet. When current is applied, a force is felt by the coil in a direction perpendicular to the magnetic field. Such an actuator is well suited for electrical switching applications including transfer switching applications, circuit breaker applications, and ground fault interrupter applications.

A manufacturing method of one dimension nano magnetic wires is provided. In the method, the one dimension nano magnetic wires having high magnetization and low coercive force are synthesized from a liquid by means of reduction with an applied magnetic field under normal atmospheric temperature and pressure. The one dimension nano magnetic wire is selected from the groups consisting of iron (Fe), cobalt (Co), nickel (Ni), and composites and an alloy thereof.

A high sensitivity magnetic anomaly detector for geomagnetic exploration comprises a shorted coaxial transmission line having as central conductor an amorphous magnetic wire. A static magnetic field is applied along the transmission line. A transverse electromagnetic wave also propagates along the transmission line and excites a ferromagnetic resonance of the magnetic ions located within the depth of penetration of the circumferential microwave magnetic field into the magnetic wire. The microwave giant magnetoimpedance effect occurring in the magnetic wire changes the magnetic wire impedance as follows: the real part of the impedance peaks and the imaginary part passes through zero at a given frequency (the ferromagnetic resonance frequency). This frequency depends on the saturation magnetization of the magnetic wire and the strength of the static magnetic field. A slight variation of the Earth's magnetic field (a magnetic anomaly) changes this frequency, thus providing information about large metallic masses hidden under the Earth's surface or underwater.

The invention discloses a static spraying powder paint and preparing technology for electromagnetic wire and enameled wire, which comprises the following parts: 60-88% resin, 7-15% solidifier, 1-5% dye, 0-20% filler, 2-6% adjuvant. The preparing method comprises the following steps: blending the materials together; fusing to squeeze; cooling to indoor temperature; grinding into piece shaped material; separating the grinded powder into less than 160 order semi-product; demagnetizing to obtain the product.

The invention discloses a magnetic navigation automatic meal delivery robot system and an automatic meal delivery method. An inductive transducer inside a robot is used for inducting a magnetic wire around, the position of the robot is obtained, and the robot runs along the track of the magnetic wire. When a reed switch inside the robot inducts a magnet in the stop position, the robot stops running, and accurate stop is realized. When the robot reaches the stop position, a sound prompt is given out, so that a customer can take the meal or give empty dishes back according to the prompt. By means of the scheme, automatic tracking and accurate stop can be realized, and the magnetic navigation automatic meal delivery robot system is convenient to use and high in efficiency.

A solar electric generator is disclosed that includes a sealed cylindrical casing having a depression in the cylindrical wall, the casing being made of a material that allows the energy of sunlight therethrough, a magnetic wire coiled in the depression, a strut positioned within the casing along a center axis, and a plurality of magnetized vanes configured to rotate (with low friction) on the strut proximate the depression, the vanes having a black side and a white side, an outer portion of the vane being shaped to correspond to the depression in the casing. Other embodiments and methods of generating an alternating current are also disclosed.

The invention provides a superconducting magnetic separator which comprises a superconducting magnetic system, a magnetic wire rotary drum (15), a positioning system of the magnetic wire rotary drum, a driving system of the magnetic wire rotary drum, a support (10) of the superconducting magnetic separator and the like. The superconducting magnetic system comprises a housing (1) of the superconducting magnetic system and a magnetic core coil (4), and the magnetic core coil (4) is wrapped by the housing (1) of the superconducting magnetic system; the magnetic wire rotary drum (15) is positioned on the support (10) of the superconducting magnetic separator by the positioning system of the magnetic wire rotary drum, and the magnetic wire rotary drum (15) penetrates the center of the superconducting magnetic system and can rotate freely around the point of the center of a circle under the driving of the driving system of the magnetic wire rotary drum. The superconducting magnetic separator utilizes the central part with the strongest magnetic field intensity in the superconducting magnetic system, fully utilizes the energy of a magnetic field and the electrical energy, and can better separate and sort a variety of components with different magnetisms in ores; furthermore, the superconducting magnetic separator has convenient mounting, easy control and easy maintenance and can avoid the interferences of the magnetic field. The superconducting magnetic separator can also be applied in foods, biotechnology, pharmaceutical industry, medicine, medical industry and other fields.

The invention is an asynchronous starting magnetic resistance synchronous electromotor, which relates to a magnetic resistance synchronous electromotor, including a stator component, and a rotor part. The magnetic resistance synchronous electromotor adopts a claw pole part to generate a stator rotating magnetic field, a squirrel cage guide cuts the magnetic wire of the stator rotating magnetic field to generate an asynchronous starting rotational distance, leading the rotor part to a synchronous rotating speed. The rotor salient pole of the rotor part and the stator rotating magnetic field work mutually to generate a synchronous rotational distance of magnetic resistance nature. Two stator winding group is an integrated winding group, the fabricating automation degree is high, and the cost of human work is low. The magnetic resistance synchronous electromotor can start asynchronously, has the advantages of high motor efficiency and low cost, and satisfies the requirements of small power synchronous electromotor for energy saving electromotor.

The invention provides a magnetic wire and a recording medium. The magnetic wire includes a magnetic metal wire material having a surface coated with a layer of an insulating material. The magnetic wire has a magnetic coercive force of 30 A/m or less and has a Barkhausen effect.