Abstract: A novel method for attaching oligonucleotides to a paramagnetic solid support is disclosed. Conventional methods of attachment require that oligonucleotides be pre-synthesized with specific end modifications, which is laborious and expensive. Instead, we attached oligonucleotides to paramagnetic beads by direct synthesis of the oligonucleotides on the surface of the beads. An external magnet was used to hold the paramagnetic beads in place during solid-phase synthesis. A magnetic force was applied directly to the beads to prevent their loss, in particular, during reagent purge-to-waste steps that involved high-pressure drain or vacuum. This method can be adapted for use in any laboratory working with conventional synthesis automation, and can be employed, for example, with single columns and multi-well titer plates.

Abstract: A system and a method for the controlled manipulation of any number of magnetic particles in solution are shown. The system and the method of the present invention are based on the employment of magnetic conduits properly structured in order to inject, move and annihilate with high precision magnetic domain walls and on the fact that said magnetic domain walls exert a high attraction force on magnetic particles. The injection, movement and annihilation of domain walls along said magnetic conduit result, therefore, in the trapping, movement and release, respectively, of single magnetic particles placed in solution in proximity of said magnetic conduits. The devices of the present invention guarantee the possibility of a digital transfer of magnetic particles along conduits formed by linear segments as well as high control and nanometric precision in the manipulation of said magnetic particles on curved conduits.

Abstract: A magnetization apparatus and process for producing thin magnetized sheets and rolls. It has permanent magnet pieces oriented and magnetized perpendicular to the other components of soft pole piece surfaces. This orientation permits the adjustably controlled field strength of the magnetic field produced. By varying the number of pole pieces and the corresponding permanent magnets the magnetic coupling and magnetic field strength varies. This field variance shifts the aligned poles into a “random orientation”. Therefor the alignment of like poles on the consecutive sheets is avoided and the sheets can lay flat and not be repelled by aligned poles.

Abstract: A technique for fixing permanent magnets of a drive motor rotor for a vehicle may include inserting permanent magnets into a plurality of permanent magnet insertion holes that are formed at a predetermined distance from each other in a circumferential direction of a rotor core, applying magnetic force to the rotor core with a magnetic force generator, such that the magnetic force is formed in an axial or a radial direction of the rotor core to instantly fix the position of the permanent magnets, and adding a fixation material to the permanent magnet insertion holes to fix the permanent magnets.

Abstract: The present invention discloses highly sensitive magnetic heterojunction device consisting of a composite comprising ferromagnetic (La0.66Sr0.34MnO3) LSMO layer with ultra-thin ferrimagnetic CoFe2O4 (CFO) layer capable of giant resistive switching (RS) which can be tuned at micro tesla magnetic field at room temperature.

Abstract: A magnetic torque sensing device having a disk-shaped member with a magnetoelastically active region. The magnetoelastically active region has oppositely polarized magnetically conditioned regions with initial directions of magnetization that are perpendicular to the sensitive directions of magnetic field sensor pairs placed proximate to the magnetically active region. Magnetic field sensors are specially positioned in relation to the disk-shaped member to accurately measure torque while providing improved RSU performance and reducing the detrimental effects of compassing.

Abstract: A magnetizer for a tissue-penetrating medical tool such as a needle, cannula, stylet, or catheter consist of a magnetic flux generator which generates a magnetic field in a tool-receiving space. The tool can be passed through or into and out of the space to magnetise it. Optionally the space can be defined by a disposable plastics tube, with a closed end, so that a defined length of the tool is magnetised. The magnetic flux generator can be a permanent magnet or electromagnet. Alternatively a conveyor belt can be used to transport a tissue-penetrating medical tool through a magnetic field generated by an electromagnet with the belt and the electromagnetic being controlled in response to an optical sensor for detecting the position of the tissue-penetrating medical tool. The device is suitable for magnetising tools for use in surgical procedures where the tool is to be magnetically tracked.

Abstract: Magnetic structure production may relate, by way of example but not limitation, to methods, systems, etc. for producing magnetic structures by printing magnetic pixels (aka maxels) into a magnetizable material. Disclosed herein is production of magnetic structures having, for example: maxels of varying shapes, maxels with different positioning, individual maxels with different properties, maxel patterns having different magnetic field characteristics, combinations thereof, and so forth. In certain example implementations disclosed herein, a second maxel may be printed such that it partially overwrites a first maxel to produce a magnetic structure having overlapping maxels. In certain example implementations disclosed herein, a magnetic printer may include a print head comprising multiple parts and having various properties. In certain example implementations disclosed herein, various techniques for using a magnetic printer may be employed to produce different magnetic structures.

Abstract: A system and method for tailoring a polarity transition of a magnetic structure is provided that involves printing one or more reinforcing maxels alongside one side or both sides of a polarity transition boundary between a first polarity region of the magnetic structure having a first polarity and a second polarity region of the magnetic structure having a second polarity, where printing reinforcing maxels alongside the polarity transition boundary improves the magnetic field characteristics of the polarity transition.

Abstract: A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator.

Abstract: A magnetoelectric composite device having a free (i.e. switchable) layer of ferromagnetic nanocrystals mechanically coupled a ferroelectric single crystal substrate is presented, wherein application of an electrical field on the composite switches the magnetic state of the switchable layer from a superparamagnetic state having no overall net magnetization to a substantially single-domain ferromagnetic state.

Abstract: A magnetizer including at least one reconfigurable magnetic flux guide coil is disclosed. A method of magnetizing a permanent magnet in-situ a mechanical member is also disclosed.

Abstract: A magnetic system and related method for generating energy is described. Multiple embodiments are described having different shapes, alternative designs to receive different driving forces, varied magnetic structures, and so forth. In an example implementation, a magnetic structure may include on a single side multiple magnetic sources having different magnetic polarities. Other description herein may be directed to magnetizer printing, adaptable/adjustable correlated magnet devices, entertainment devices having correlated magnet technology, and so forth. Furthermore, description of additional magnet-related technology and example implementations thereof is included herein.

Abstract: Portable magnetizer systems designed for on-site use, related to magnetizing magnetizable sheets, enclosed in a portable case which is hand-carryable.

Abstract: Magnetic structure production may relate, by way of example but not limitation, to methods, systems, etc. for producing magnetic structures by printing magnetic pixels (aka maxels) into a magnetizable material. Disclosed herein is production of magnetic structures having, for example: maxels of varying shapes, maxels with different positioning, individual maxels with different properties, maxel patterns having different magnetic field characteristics, combinations thereof, and so forth. In certain example implementations disclosed herein, a second maxel may be printed such that it partially overwrites a first maxel to produce a magnetic structure having overlapping maxels. In certain example implementations disclosed herein, a magnetic printer may include a print head comprising multiple parts and having various properties. In certain example implementations disclosed herein, various techniques for using a magnetic printer may be employed to produce different magnetic structures.

Abstract: This invention relates mainly to methods and apparatus for magnetizing a superconductor. We describe a method of changing the magnetization of a superconductor, by automatically controlling a magnet to generate a wave of magnetic flux, in particular a standing wave of magnetic flux, adjacent to the surface of said superconductor. In preferred implementations of the method the superconductor is positioned within a magnetic circuit including a ferromagnetic or ferrimagnetic material and the method further comprises regulating the magnetic circuit during or after changing the superconductor's magnetization.

Abstract: A carriage for high magnetic field environments includes a first work-piece holding means for holding a first work-piece, the first work-piece holding means being disposed in an operable relationship with a work-piece processing magnet having a magnetic field strength of at least 1 Tesla. The first work-piece holding means is further disposed in operable connection with a second work-piece holding means for holding a second work-piece so that, as the first work-piece is inserted into the magnetic field, the second work-piece is simultaneously withdrawn from the magnetic field, so that an attractive magnetic force imparted on the first work-piece offsets a resistive magnetic force imparted on the second work-piece.

Abstract: Described herein are shaped coil TMS electromagnets formed by two bent magnetic coil loops joined at a vertex having an angle between the outer coil regions of the coils that is typically less than 120 degrees (e.g., between about 45 and about 70 degrees, 60 degrees, etc.). The vertex region shaped to optimize the magnetic field projected from the TMS electromagnet. For example, the vertex region may be horizontal or vertical. In some variations the vertex region is formed by re-arranging the conductive windings forming the two coils so that they are no longer arranged in the same columnar structure that they are in the other portions of the bent magnetic coil loops. These TMS electromagnets may be well suited for use in deep-brain Transcranial Magnetic Stimulation.

Abstract: A system for producing magnetic structures includes multiple magnetizing circuits and multiple inductor coils used to magnetically print multiple magnetic sources onto multiple pieces of magnetizable material. The multiple pieces of magnetizable material may be moving on a motion control system. The multiple inductor coils may be configured on one or more gantries. The motion control system may be a conveyor system.

Abstract: An electromagnetic energy transducer configured to convert mechanical energy into electrical energy comprises two magnetic elements including a permanent magnetic element and a soft-magnetic element and an electrical coil. The permanent magnetic element and the soft-magnetic element are arranged to form a magnetic circuit and one of the two magnetic elements is movable in relation to the other of the two magnetic elements. The electrical coil surrounds a part of the soft magnetic element. The movable magnetic element is held in a first position by a spring force and moved into a second position by applying an external mechanical force exceeding the spring force, and at the first position the magnetic flux within the soft magnetic element is different than the flux at the second position.

Abstract: A system and a method are described herein for demagnetizing a region of a magnetic structure. In one embodiment, the system comprises: (a) a pulsed magnetizer; and (b) at least one magnetizing coil that receives a sequence of discrete currents with continually decreasing current values from the pulsed magnetizer and outputs a sequence of discrete magnetizing fields with continually decreasing field strengths to overwrite and at least partly demagnetize the region of the magnetic structure. The at least one magnetizing coil is located adjacent to the region of the magnetic structure.

Abstract: Provided is a magnetic device using permanent magnets according to an exemplary embodiment of the present invention. In more detail, the present invention relates to a magnetic device using permanent magnets that can form a high magnetic field using a first permanent magnet and a second permanent magnet to perform various kinds of magnetic field application experiments, in particular, can be used for a single crystal growth, generation of polarized neutrons, and the like, and easily manufactured with a simple configuration and secure sufficient durability.

Abstract: Magnetic structure production may relate, by way of example but not limitation, to methods, systems, etc. for producing magnetic structures by printing magnetic pixels (aka maxels) into a magnetizable material. Disclosed herein is production of magnetic structures having, for example: maxels of varying shapes, maxels with different positioning, individual maxels with different properties, maxel patterns having different magnetic field characteristics, combinations thereof, and so forth. In certain example implementations disclosed herein, a second maxel may be printed such that it partially overwrites a first maxel to produce a magnetic structure having overlapping maxels. In certain example implementations disclosed herein, a magnetic printer may include a print head comprising multiple parts and having various properties. In certain example implementations disclosed herein, various techniques for using a magnetic printer may be employed to produce different magnetic structures.

Abstract: A system and a method are described herein for magnetizing magnetic sources into a magnetizable material. In one embodiment, the method comprises: (a) providing an inductor coil having multiple layers and a hole extending through the multiple layers; (b) positioning the inductor coil next to the magnetizable material; and (c) emitting from the inductor coil a magnetic field that magnetizes an area on a surface of the magnetizable material, wherein the area on the surface of the magnetizable material that is magnetized is in a direction other than perpendicular to the magnetizable material such that there is a magnetic dipole with both a north polarity and a south polarity formed on the surface of the magnetizable material.

Abstract: A magnetic attachment mechanism for use with a downhole tool comprises a plurality of permanent magnets each having a magnetic field, a demagnetizer configured to at least partially cancel one or more magnetic fields in an activated state, an actuator configured to transition the demagnetizer between the activated state and a deactivated state or the deactivated state and the activated state, and at least one downhole tool coupled to the plurality of permanent magnets.

Abstract: An inductor apparatus includes an inductor winding, a core defining a magnetic circuit for a magnetic flux generated by a current flowing through the inductor winding, at least one permanent magnet magnetically biasing the core by its permanent magnetization, and a magnetization device operable for adjusting a desired magnetization of the permanent magnet. The at least one permanent magnet is arranged within the magnetic circuit of the magnetic flux generated by the current flowing through the inductor winding. The magnetization device includes a magnetization winding and a circuitry configured to subject the magnetization winding to magnetization current pulses, thereby generating at a location of the permanent magnet a magnetic field which is able to change the permanent magnetization of the permanent magnet.

Abstract: Magnetohydrodynamics (MHD) has applications in all electrochemical processes and in a few that are not totally electrochemical in nature. By magnetizing the electrodes or the current collectors through the electrodes so that the vertical, closely and appropriately spaced magnetized electrodes produce a uniform, low magnetic field between them, north pole to south pole, the Lorentz force enhances the natural or forced convection where it is the greatest, very near the electrodes. Because the main internal resistance of an electrochemical process resides in the electrolyte, increasing the speed of transport of charged particles from one electrode to the other greatly reduces this internal resistance. Other treatments such as adding an indifferent paramagnetic ion, an indifferent free radical, completing the magnetic circuit, using a spacer which does not obscure the electrode surface, further reduce the internal resistance, lowering the wasted energy which usually appears as heat in the electrolyte.

Abstract: The present invention relates a device for magnetizing a rotor of an electrical machine with a power rating of at least 1 MW, wherein the rotor comprises permanent magnet material, said device comprising a yoke with an electromagnetic coil arranged to produce a pulsed magnetic field for magnetizing the permanent magnet material, wherein the magnetic field is sufficient to magnetize a permanent magnetic pole wherein the rotor and yoke is in a fixed relation to each other. The invention also relates to a method for magnetization of a rotor with permanent magnets for an electrical machine.

Abstract: An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Abstract: A device for magnetizing an object includes first and second electrode for contacting the object to be magnetized as well as a current generator. The generator is configured to apply a current having a raising current slope and a falling current slope. The falling current slope is steeper than the raising current slope.

Abstract: Apparatus and methods to magnetize and demagnetize the magnetic poles of a rotor assembly for an electrical machine, such as a generator. The apparatus and methods provide for individually magnetize magnetic domains in the permanent magnetic material of the magnetic poles of a rotor assembly of the electrical machine after the electrical machine is installed in a larger assembly. The magnetization system may be used to magnetize and demagnetize the magnetic poles while the rotor assembly is connected with a prime mover, such a rotor of a wind turbine.

Abstract: A magnetizing coil unit and a method of making a magnetizing coil unit is provided. The coil includes a solenoid coil having a coiled copper sheet in which the width of the copper sheet is equal to the height of the solenoid coil. A magnetizing assembly includes a plurality of magnetizing coil units.

Abstract: A superconducting magnetizer assembly includes a coil pack including an inner coil configured to generate a first magnetic field in response to an electric current supplied to the inner coil, an outer coil being disposed about the inner coil and configured to generate a second magnetic field in response to an electric current supplied to the outer coil, a non-conductive end spacer disposed between an end winding of the inner coil and an end winding of the outer coil, and a container to house the inner and outer coils; and a yoke disposed proximate the coil pack being configured to constrain the first and second magnetic fields to reduce the strength of the first field at the end winding of the inner coil, wherein the yoke comprises an annular ring configured to at least partially envelop the coil pack.

Abstract: For simplifying the handling of magnet bodies during magnetization and for inserting the magnetized magnet bodies into a component of a magnetic system such as an electromagnetic drive, a magnetic travel or angle system or the like, an apparatus is proposed which includes a plurality of cavities for receiving at least one magnet body respectively, wherein the magazine comprises a plurality of interconnected and mutually movable magazine elements. The invention further relates to a method for holding magnet bodies during their magnetization and for inserting the magnetized magnet bodies into a component of a magnetic system and to a magnet body handling system.

Abstract: A magnetic encoder magnetizing method, in which magnetization of the plural neighboring tracks of the magnetic encoder can be accurately performed, is provided. While an annular magnetic body having a plurality of annular, unmagnetized magnetic encoder tracks integral therewith and juxtaposed relative to each other is rotated, the tracks of the magnetic encoder are individually magnetized by a magnetizing head, made up of a magnetizing yoke and an exciting coil, to thereby provide the magnetic encoder. In the practice of this magnetizing method, when one of the tracks of the magnetic encoder is magnetized, the other track is covered with a magnetic shielding mask.

Abstract: A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator.

Abstract: Provided is a method of magnetically controlling a magnetic structure, the method including: providing a solution containing magnetic structures, each including a magnetic axis in which magnetic nanoparticles are arranged; and controlling movements of the magnetic structures by applying an external magnetic field to the solution.

Abstract: A magnetic field generator includes a holding unit, an induction winding, and an operation unit. The induction winding is slidably and rotatably mounted on the holding unit. The operation unit is electrically connected to the induction winding, and positioned in a predetermined distance away from the induction winding. The operation unit provides current to the induction winding, and the induction winding generates magnetic field in response to receiving the current from the operation unit.

Abstract: A system for improved magnetization of flexible magnetic sheet material, such as magnetic rubber. More particularly, this invention relates to providing a system for magnetization of printed or printable flexible magnetic sheet material.

Abstract: A system for improved magnetization of flexible magnetic sheet material, such as magnetic rubber. More particularly, this invention relates to providing a system for magnetization of pre-printed flexible magnetic sheet material.

Abstract: There is provided a magnetic field control method and a magnetic field generator which are capable of moving a local maximum point of magnetic field intensity on a predetermined plane easily to any given point within a predetermined area on the predetermined plane. A magnetic field generator 10 includes a pair of permanent magnets 16a, 16b provided axially of a predetermined axis A, with a gap G in between. The permanent magnet 16a is formed on a drive unit 14a in such a way that a center region 30a of a first main surface 26a is off the predetermined axis A. The permanent magnet 16b is formed on a drive unit 14b in such a way that a center region 30b of a first main surface 26b is off the predetermined axis A. The permanent magnet 16a revolves on a path R1 as a rotating member 24a rotates. The permanent magnet 16b revolves on a path R2 as a rotating member 24b rotates.

Abstract: The present disclosure is generally directed towards magnetization of permanent magnets using superconducting magnetizers. For example, in one embodiment, a superconducting magnetizer assembly is provided. The assembly includes a coil pack having an inner coil including a first superconducting magnet material, the coil being configured to generate a first magnetic field in response to an electric current supplied to the coil, and an outer coil including a second superconducting magnet material, the outer coil being disposed about the inner coil and being configured to generate a second magnetic field in response to an electric current supplied to the outer coil. The coil pack also includes a container configured to house the inner and the outer coils.

Abstract: A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator.

Abstract: The present invention provides a cylindrical magnetic levitation stage which includes a cylindrical substrate used to form micro-patterns of various arbitrary shapes on a large-area semiconductor substrate or display panel substrate, a cylindrical substrate, a combination of a first permanent magnet array and a first coil array and a combination of a first permanent magnet array and a first coil array, which are coupled to the cylindrical substrate, so that levitation, axial translation and rotation of the cylindrical substrate can be made finely through the control of a magnetic force generated by the interaction between a magnetic field generated by electric current applied to the coil arrays and a magnetic field generated from the permanent magnet arrays corresponding to the coil arrays.

Abstract: A magnet arrangement for creating a magnetic field. The magnet arrangement includes a first magnet having a first surface defining a first pole and a second surface defining a second pole opposite the first pole, and a second magnet having a third surface defining a third pole and a fourth surface defining a fourth pole opposite the third pole. The second surface has a higher magnetic flux density than the first surface. The third surface has a higher magnetic flux density than the fourth surface. The second magnet is spaced from the first magnet to define a first gap between the second surface and the third surface. Magnetic field lines of the magnetic field run from the first surface to the second surface, from the second surface to the third surface through the first gap, and from the third surface to the fourth surface.

Abstract: An apparatus for magnetizing magnets provided among a plurality of cores of a motor of a washing machine and a method thereof, is capable of fully magnetizing a magnet forming a rotor and including a plurality of teeth disposed around two cores of the plurality of cores, the two cores being laterally provided while interposing one of the magnets therebetween, and a coil being provided around the plurality of teeth to form a magnetic flux to magnetize the one magnet interposed between the two cores laterally provided.

Abstract: A method for producing a switchable core element-based permanent magnet apparatus, used for holding and lifting a target, comprised of two or more carrier platters containing core elements. The core elements are magnetically matched soft steel pole conduits attached to the north and south magnetic poles of one or more permanent magnets, inset into carrier platters. The pole conduits contain and redirect the permanent magnets' magnetic field to the upper and lower faces of the carrier platters. By containing and redirecting the magnetic field within the pole conduits, like poles have a simultaneous level of attraction and repulsion. Aligning upper core elements “in-phase,” with the lower core elements, activates the apparatus by redirecting the magnetic fields of both pole conduits into the target. Anti-aligning upper core elements “out-of-phase,” with the lower core elements, deactivates the apparatus resulting in pole conduits containing opposing fields.

Abstract: A magnetizer for magnetizing permanent magnets positioned in-situ a mechanical member is disclosed. The magnetizer comprises at least one primary superconducting coil configured to project a magnetic field flux configuration of a first type to at least a portion of a distal volume of a first type, and at least two auxiliary coils symmetrically disposed about the at least one primary superconducting coil and configured to project magnetic field flux configurations of a second type to at least a portion of a distal volume of a second type. A method of magnetizing a permanent magnet in-situ within a mechanical member is also disclosed.

Abstract: A magnetization apparatus and process for producing thin magnetized sheets and rolls. It has permanent magnet pieces oriented and magnetized perpendicular to the other components of soft pole piece surfaces. This orientation permits the adjustably controlled field strength of the magnetic field produced. By varying the number of pole pieces and the corresponding permanent magnets the magnetic coupling and magnetic field strength varies. This field variance shifts the aligned poles into a “random orientation”. Therefor the alignment of like poles on the consecutive sheets is avoided and the sheets can lay flat and not be repelled by aligned poles.

Abstract: Portable magnetizer systems designed for on-site use, related to magnetizing magnetizable sheets, enclosed in a portable case which is hand-carryable.