|| List of recent Magnetic Field-related patents
|Control system for electromagnetic pumps|
A control system and method for controlling electromagnetic drive pumps as, for example, electromagnetic driven membrane pumps are provided in which the control system is formed by at least one microprocessor and at least one sensor, whose microprocessor controls the power supply to at least one electromagnet whose changes in emitted magnetic field causes at least one moving part, directly or indirectly, to perform an oscillating pumping movement. The control system includes at least one positioning sensor which senses the moving part's position in the electromagnetic driven pump.
|Universal shaft for magnetic manipulation of catheters|
A magnetically-guided catheter includes a tip positioning magnet in the distal end portion thereof configured to interact with externally applied magnetic fields for magnetically-guided movement. The magnet may be geometrically asymmetric, for example, a c-shape in radial cross-section, so as to allow side-loading of an irrigation fluid lumen and other wire(s) or lines during fabrication.
|Mri method for investigating interstitial fluid velocity in a tissue using a nulling preparation|
A magnetic resonance imaging (mri) method of investigating tissue fluid velocity in a region of interest comprising substantially eliminating the magnetic resonance signal of blood flowing in one or more blood vessels in the tissue by applying a nulling preparation to the tissue; and deriving the interstitial fluid velocity using magnetic field gradients.. .
|Direct inversion for phase-based dynamic magnetic resonance measurements|
Mri techniques seek to simultaneously measure physiological parameters in multiple directions, requiring the application of multiple encoding magnetic field gradient waveforms. The use of multiple encoding waveforms degrades the temporal resolution of the measurement, or may distort the results depending on the methodology used to derive physiological parameters from the measured data.
|Electronic brachytherapy source for use in/near mr scanners|
A miniature x-ray source (10) for high dose rate brachytherapy that can be operated in a wide range of operating directions (76) in the presence of a strong magnetic field (b), such as, for instance, the static magnetic field (b) of an mr scanner, with at least one anode (12) and at least one cathode (14), wherein in an operative state, an electric field (18) between the anode (12) and the cathode (14) is essentially spherically symmetric in at least a continuous solid angle of more than π/2 sr about a center (16) of the cathode (14); a brachytherapy system, comprising at least one said miniature x-ray source (10), and a method for generating a beam (82) of x-ray radiation inside an outer magnetic field (b) or an operative mr scanner with said miniature x-ray source (10).. .
|Tumor treatment with free radical lifetimes enhanced by persistant low strength magnetic field|
In the treatment of a tumor (126) with radiation therapy (122) is enhanced by a weak magnetic field (130), the field strength time sequence of exposure and shape and contour of the magnetic field are varied to achieve desired results. In one separate aspect, exposure to a magnetic field (130) is continued after exposure to a free radical-creating therapy is ceased or diminished, thereby increasing the lifetimes of free radicals that have already been created.
|Oscillator, rectifier, and transceiver device|
An oscillator has an oscillation portion that generates oscillatory electric signals due to a magnetization motion; and a first electric circuit that is connected in parallel to the oscillation portion. A current whose magnitude oscillates flows to the first electric circuit, and the first electric circuit is arranged such that a magnetic field generated by the current is applied to the oscillation portion..
|Transmitter for near-field chip-to-chip multichannel transmission|
This application relates to a transmitter for a near-field chip-to-chip multichannel transmission system such as the capacitive or inductive links used for vertical signal transmission between the stacked chips of a system-in-package. A transmitter for near-field chip-to-chip multichannel transmission providing 4 transmission channels for digital transmission between two monolithic integrated circuits comprises 4 coupling devices, each of said coupling devices being a planar winding sensitive to magnetic field variations.
|Magnetic patterning method and system|
The present invention relates to a method and apparatus for patterning a substrate. The method comprises providing at least one magnetic pattern generator configured and operable to modulate the magnetic field to induce varying magnetic properties to a magnetic field according to a desired pattern; applying the modulated magnetic field in the vicinity of the substrate creating a certain pattern of regions of interaction to be obtained on top of the substrate; and; interacting the substrate with magnetic particles, while under the application of the modulated magnetic field, the magnetic particles being attracted to selected regions of interaction defined by the certain pattern while being substantially not attracted to regions outside the regions of interaction, thus creating on top of the substrate the certain pattern of regions interacted with the magnetic particles.
Ionisation device, comprising a linear hollow cathode device which has hollow cathode electrodes, defining a main hollow cathode electrode gap in which a magnetic field created by means of magnetic elements is confined; and a gas distribution element in which a gas distribution cavity is arranged providing uniform gas distribution on the main hollow cathode electrode gap with suitable powering which in a substantially vacuum environment would be able to produce a substantially linear plasma discharge which is spatially extended by the relative position of the hollow cathode electrodes and an anode element wherein this extended plasma allowing a wide interaction with particles travelling from a coating material source ionised in order to produce a coating or a plasma treatment on a substrate surface.. .
|Methods and systems for automatically determining magnetic field inversion time of a tissue species|
A computer-implemented method for determining magnetic field inversion time of a tissue species includes generating a t1-mapping image of a tissue of interest, the t1-mapping image comprising a plurality of t1 values within an expected range of t1 values for the tissue of interest. An image mask is created based on predetermined identification information about the tissue of interest.
|Vlf transmit antenna system, method and apparatus|
There is provided a very low frequency (vlf) transmit antenna system, method, and apparatus for creating a magnetic field at low frequencies suitable for communications through the earth or other thick, solid barriers. At least two loop antennas are arranged such that a magnetic field of each one of the at least two loop antennas passes through each remaining one of the at least two loop antennas, thereby closely coupling the at least two loop antennas.
|Short period undulator|
The invention relates to a method for generating electromagnetic radiation (preferably uv, vuv, xuv, or x-rays), to an optical short-period undulator (10) and to a free-electron laser comprising the latter. To accomplish the method, a high-energy electrically charged particle beam (5) is provided, and high-intensity electromagnetic pulses (7, 7a, 7b) are generated, and by interfering said pulses with one another an electromagnetic standing wave is created, wherein said standing wave has an electric field strength of a pre-determined peak value.
|Self-excitation push-pull type converter|
A self-excitation push-pull type converter with a transformer having a closed magnetic core or iron core, which formed of a main part (52) and a local part (53). The local part reaches magnetic saturation earlier than the main part under the same increasing magnetic field excitation.
|High frequency magnetic field assisted magnetic recording head, and method of manufacturing same|
Provided are a structure of a high frequency magnetic field assisted magnetic recording head in which the positional relationship of a main magnetic pole and a spin torque oscillator in a cross-track direction is accurately determined, and in which variations are not caused in high frequency magnetic field assist characteristics, and a method of manufacturing the structure. The high frequency magnetic field assisted magnetic recording head includes a main magnetic pole, a spin torque oscillator disposed on the main magnetic pole, and an insulating side gap covering a side surface of the main magnetic pole and a side surface of the spin torque oscillator.
|Apparatus comprising magnetically soft underlayer|
Provided herein is an apparatus, including a magnetically soft underlayer (sul); an interlayer stack overlying the sul, wherein the interlayer stack comprises a seed layer of an fcc material; and a perpendicular magnetic recording layer overlying the interlayer stack, wherein a thickness of the sul in combination with a distance of the sul from the perpendicular recording layer is sufficient to orient a total magnetic field corresponding to a magnetic transducer head at an angle of about 45°.. .
|Tracking exposure to electromagnetic fields|
A method of tracking electromagnetic field, emf, exposure of a user, comprising storing an aggregate emf exposure value for the user, the aggregate emf exposure value indicating emf exposure due to use of one or more devices by the user; obtaining an estimate of emf exposure associated with use of a particular one of the devices by the user; revising the aggregate emf exposure value for the user in dependence upon the estimated emf exposure; comparing the aggregate emf exposure value to a threshold; and transmitting a signal related to use of the one or more devices if the aggregate emf exposure value exceeds the threshold.. .
|Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof|
Various embodiments of permanent magnetic arrays are disclosed. Such arrays include a central support tube; permanent magnets arranged along the central support tube, where the permanent magnets are oriented such that like poles of the magnets are placed adjacently to concentrate a magnetic field in a direction perpendicular to an axis of the central support tube; and pole pieces arranged along the central support tube, each pole piece in contact with two neighboring permanent magnets and separating those two neighboring permanent magnets..
|Low-power magnetic slope detecting circuit|
One embodiment of the present invention relates to a method and apparatus to perform a low power activation of a system by measuring the slope of a digital signal corresponding to a motion sensor measurement value. In one embodiment, a low power activation circuit is coupled to magnetic motion sensor configured to output a magnetic signal proportional to a measured magnetic field.
|Reverse semi-airborne electromagnetic prospecting|
Method for semi-airborne electromagnetic prospecting for hydrocarbons or other fluids or minerals. In the method, electromagnetic receivers are deployed on the earth's surface over a subsurface region (71).
|Method of locating the position of linear objects|
A method of locating a position of a linear object, including arranging a first and a second reactor around a measuring point, the first reactor generating an induced voltage corresponding to an x-direction component of a magnetic field, the x direction perpendicular to a running direction of the object, and the second reactor generating an induced voltage corresponding to a y-direction component of the field, the y direction perpendicular to the x-direction and the running direction; obtaining a first reactor induced voltage and a second reactor induced voltage; setting an x-distance as a first distance from the point to the object center, and setting the y-distance as a second distance; and estimating a direction in which the linear object is located as viewed from the point, by regarding an x-distance to y-distance ratio as equal to a ratio of the first voltage to the second voltage multiplied by a coefficient.. .
|Multi-frequency locating systems and methods|
Multi-frequency buried object location system transmitters and locators are disclosed. A transmitter may generate and provide output signals to a buried object at a plurality of frequencies, which may be selected based on a connection type.
|Miniature nmr drill cutting analyzer and methods of use|
A nuclear magnetic resonance (nmr) sample analyzer has a plurality of nmr units arrayed in a predetermined relationship to each other. Each of the nmr units includes a sample chamber having a sensitive volume for containing a sample to be analyzed; a radio frequency (rf) transmitting and receiving device proximal the sample chamber; and a magnet surrounding the rf transmitting and receiving device and sample chamber for generating a substantially uniform magnetic field within the sensitive volume and substantially no magnetic field beyond an outside wall of the magnet..
|Magnetic resonance imaging data correction methods and systems|
Systems and methods for correcting magnetic resonance (mr) data are provided. One method includes receiving the mr data and correcting errors present in the mr data due to non-uniformities in magnetic field gradients used to generate the diffusion weighted mr signals.
|Observation of axial magnetization of an object in a magnetic field|
A method of observing axial magnetization (mz) in an object (o) located in a main magnetic field (b0) comprises the step of determining magnetic field intensity (bp) in at least one magnetic field probe (p) arranged in the neighborhood of the object. The magnetic field probe comprises a magnetic resonance (mr) active substance, means for pulsed mr excitation of the substance and means for receiving an mr signal generated by said substance..
|Measuring device for measuring the magnetic properties of the surroundings of the measuring device|
A measuring device for measuring magnetic properties of the surroundings of the device includes at least one magnetoresistive element extending in a line direction, and a support field device generating a magnetic support field in an area over the line direction. A pre-magnetization device of one or more magnets are arranged at a distance from the sensor line in a direction vertical to the line direction and extending parallel to the line direction.
|Compensation current sensor arrangement|
The current sensor arrangement according to the compensation principle has a primary conductor, designed to generate a primary magnetic field dependent on a current to be measured flowing through it, a first secondary winding, designed to generate a first secondary magnetic field dependent on a first compensation current flowing through said winding, a second secondary winding designed to generate a second secondary magnetic field dependent on a second compensation current flowing through said winding, a magnetic field sensor designed to generate a measurement signal that represents a magnetic field detected by it; a magnetic core of soft magnetic material designed and arranged to magnetically interconnect a primary conductor, a first seconding winding, a second secondary winding, and a magnetic field sensor; a first evaluation circuit, downstream from the magnetic field sensor and upstream from the first secondary winding, and designed to generate a first compensation current corresponding to the measurement signal of the magnetic field sensor and feed the first secondary winding; and a second evaluation circuit, upstream from the second secondary winding and designed to generate a second compensation current corresponding to the first compensation current and feed the secondary winding. The magnetic field detected by the magnetic field sensor is the magnetic field in the magnetic core resulting from the superposition of the primary magnetic field, the first secondary magnetic field, and the second secondary magnetic field.
|Eddy current inspection probe based on magnetoresistive sensors|
A device and method of eddy current based nondestructive testing of tubular structures made of electrically conductive materials is disclosed. The device includes a plurality of excitation electromagnets having an axis of symmetry and magnetoresistive sensors having an easy axis for magnetic field sensing; wherein the magnetoresistive sensors are arranged in a circular array on a single plane with the easy axis aligned radially with respect to the circular pattern and wherein the electromagnets are arranged in a circular pattern on both sides of the plane with their axes of symmetry being arranged parallel to the plane and orthogonal to radii of the circular pattern on which the electromagnets are placed..
|Apparatus and method for monitoring the structural integrity of a pipeline by means of a superconducting magnet|
An inspection apparatus (100) for monitoring the structural integrity of a pipeline (101) comprising a superconducting electromagnet (102) suitable for generating a magnetic field (106); a cryostat (103) suitable for containing and preserving said superconducting electromagnet (102) at a low temperature; at least two magnetic conveyors (104′, 104″) connected at opposite ends of the cryostat (103) suitable for conveying the magnetic field (106) generated by the superconducting electromagnet (102) to the wall of the pipeline (101) and facilitating the closing of a magnetic circuit; at least one sensor system (105) for revealing the intensity of the magnetic field (106). A method for monitoring the structural integrity of a pipeline (101) using an inspection apparatus (100) according to the present invention.
|Magnet evaluation device and method|
A magnet evaluation device is provided for evaluating a magnet having at least two magnetic pieces bonded to an insulating material sandwiched between two adjacent ones of the magnetic pieces. The magnet evaluation device has an excitation coil and a detection coil.
|Flexible magnetostrictive probe having sensor elements without permanent magnets|
A sensor for use in magnetostrictive testing of a structure. An array of sensor elements is attached to a flexible backing.
|Apparatus and method for monitoring the structural integrity of a pipeline|
An inspection apparatus (100) for monitoring the structural integrity of a pipeline (101) comprising a central electromagnetic device (102) suitable for generating a magnetic field (106); a pair of magnetic conveyors (103′, 103″) connected to the central electromagnetic device (102) suitable for conveying the magnetic field (106) to the wall of the pipeline (101); a system of sensors (104) for revealing the magnetic field (106) conveyed on the pipeline (101); electric means (105) for feeding the inspection apparatus (100) and acquiring and storing data relating to the magnetic field (106) revealed; wherein said central electromagnetic device (102) is divided into various ferromagnetic elements (107) held together by a casing (109) made of polymeric material suitable for degrading after prolonged contact with a mixture of hydrocarbons. Method wherein an inspection apparatus according to the present invention is used for monitoring the structural integrity of a pipeline (101)..
|Magnetic flux enhancer system for reluctance type sensors|
A magnetic flux enhancer system for a reluctance type resolver and an electromagnetic angle sensor having the same are provided. The electromagnetic angle sensor has a stator (210) and a rotor (115) that is rotatably supported by a rotation axis on the stator and separated therefrom by a gap, the stator having at least one magnetic field generating means (220) adapted to generate a distribution of magnetic flux that extends over the gap to the rotor, and at least one magnetic field detecting means (220) adapted to detect a change in the magnetic flux distribution caused by a rotation of the rotor.
|Method and arrangement for determining location and/or speed of a moving object and use of the arrangement|
A method and an arrangement is provided for determining the location and/or speed of an object configured to move along a controlled trajectory, in connection with which object is fitted a measuring device measuring at least the magnetic field acting on the object in its different locations, which measuring device comprises a device configured to measure the magnetic field, from the measuring data received from which device a magnetic footprint describing the magnetic field acting on the object in its different locations is formed, which magnetic footprint is recorded in connection with a teaching run, or with self-learning, for later use. The location of the object after a teaching run is determined by measuring in essentially real-time in the direction of the three coordinates x, y, z of the magnetic field acting on the object moving along a controlled trajectory and by comparing the measurement results to a magnetic footprint recorded in advance and also by deducing as a result of the comparison the exact location of the object on its path of travel..
|Circuits and methods for generating a self-test of a magnetic field sensor|
A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field sensing element used within the magnetic field sensor, while the magnetic field sensor is functioning in normal operation.. .
|Systems and methods for generating electron spiral toroids|
A spheromak is a plasma of ions and electrons formed into a toroidal shape. A spheromak plasma can include electrons and ions of nearly equal amounts such that it is essentially charge neutral.
|Rotary electric machine|
A rotor; a control device that causes the stator to generate a rotating magnetic field; and a magnetic flux supply element supported by a rotary shaft so as to be rotatable relative to the rotary shaft, disposed radially inward of the rotor across a gap, and having auxiliary magnets. Each auxiliary magnet is formed such that opposite end portions thereof in the circumferential direction are radially opposed to holding magnets when the relative rotation angle of the magnetic flux supply element is a strengthening angle.
|Ironless magnetic linear motors having levitating and transversal force capacities|
A ironless magnetic motor (21-23) employs a magnetic track (30) and a forcer (40). The forcer (40) is orientated in relations to a magnetic field (β) across a linear air gap of the magnetic track (30) to generate a drive force (fx) parallel to the x drive axis and orthogonal to the z levitation axis in response to a commutation drive current (ix) and to generate a force (fz, fy) orthogonal to the x drive axis in response to a commutation coil current (iz, iy) being superimposed on and phase shifted from the commutation drive current (ix).
|Permanent magnet linear actuators|
An electromagnetic actuator including: a core comprising a material having a high magnetic permeability relative to air; an array of coils sequentially arranged on the core, each coil of the array of coils being wound around the longitudinal axis of the core; and a magnet assembly movably mounted along the array of coils, the magnet assembly having a coil side facing the array of coils and an opposite side facing away from the array of coils and including an array of permanent magnets sequentially arranged along the array of coils in a direction parallel to the longitudinal axis, wherein the magnetic moments of the plurality of magnets are selected and arranged to augment the magnetic field produced on the coil side of the magnet assembly and to reduce the magnetic field produced on the opposite side of the magnet assembly.. .
|Wireless power transmission apparatus|
A power-supplying module and a power-receiving module are positioned so that a coil surface of a power-supplying resonator in the power-supplying module and a coil surface of a power-receiving resonator in the power-receiving module face each other. On the inner circumferential surface sides of the coils of the power-supplying resonator and the power-receiving resonator, cylindrical magnetic members and which cover the entire inner circumferential surfaces of the coil of the power-supplying resonator and the coil of the power-receiving resonator are arranged.
An electromagnetic actuator is provided in which a mobile member is designed to slide inside a ferromagnetic frame along a displacement axis x-x′ between two end positions, when exposed to a magnetic flux circulating in said frame. The frame forms a magnetic circuit that extends in a single loop interrupted by two air gaps, each placed on the displacement axis of the mobile member.
An inspection apparatus capable of facilitating reduction in cost of the apparatus is provided. The inspection apparatus includes: beam generation means for generating any of charged particles and electromagnetic waves as a beam; a primary optical system that guides the beam into an inspection object held on a movable stage in a working chamber and irradiates the inspection object with the beam; a secondary optical system that detects secondary charged particles occurring from the inspection object; and an image processing system that forms an image on the basis of the detected secondary charged particles.
|Broadband ion beam analyzer|
A broadband ion beam analyzer, used for isolating required ions from a broadband ion beam, comprises an upper magnetic pole (1), a lower magnetic pole (2), an upper excitation coil (3), a lower excitation coil (4), an analysis grating (7), and a magnetic yoke (5 and 6). The upper magnetic pole (1) and the lower magnetic pole (2) are both provided with a camber-shaped incident-end boundary (101) and a camber-shaped emergence side boundary (102).
A percussion mechanism includes a first shaft and a second shaft. One or more vanes are fastened to the first shaft.
|Thermo-magnetic cycle apparatus|
A vehicle air-conditioner has a magneto-caloric effect type heat pump apparatus (mhp apparatus). Mhp apparatus has a magneto-caloric element (mce element) which generates heat dissipation and heat absorption in response to strength change of an external magnetic field.
|System and method for generating an electromagnetic field model|
A method for generating an emf model includes establishing a time-domain finite data model associated with an electric device representing the electric device in the time-domain; utilizing the time domain finite data model, determining excitations representing an electrical characteristic of an electrical components of the electric device; and generating an emf model by processing the excitations with a transformation routine determining an approximate representation of an emf generated by the electric device. A system for generating the emf model includes a modelling module establish a time-domain finite data model associated with the electric device and d representing the electric device in the time-domain.
|System, method and equipment for implementing temporary diamagnetic propulsive focusing effect with transient applied magnetic field pulses|
An apparatus and method are utilized to transiently implement diamagnetic behavior in both permanently and transiently magnetized particles.. .
|Method of forming semiconductor device having magnetic tunnel junction and related device|
A method of forming a semiconductor device includes forming a perpendicular magnetized magnetic device, annealing the perpendicular magnetized magnetic device, and applying a magnetic field to the perpendicular magnetized magnetic device. The semiconductor device may be a magnetoresistance data storage device.
|Mems device and a method of making the same|
A mems gyro is provided, having a movable portion, a non-movable portion, and a magnetic sensing structure that comprises a magnetic source disposed at the movable portion, a magnetic sensing element positioned at the non-movable portion. The movable portion is capable of moving in response to external angular velocity or an external accelerator such that the magnetic field sensed by the magnetic sensing element is in relation to the movement of the movable portion, therefore, the angular velocity or the accelerator.
|Method for detection of coagulation activity and biomarkers|
The present invention relates to a method for simultaneous detection of the coagulation activity of a blood sample and of the presence and/or amount of at least one target molecule within said blood sample, comprising the steps of: i) introducing a blood sample into a sample container comprising magnetic particles and a sensor surface, wherein said magnetic particles are functionalized with a first binding molecule, wherein said first binding molecule is attached to said magnetic particles, wherein the first binding molecule is capable of specifically binding to the at least one target molecule within said blood sample, and wherein a second binding molecule is attached to a sensor surface at the bottom of said sample container, and wherein said second binding molecule of the sensor surface is capable of specifically binding to the at least one target molecule within said blood sample; ii) measuring the presence and/or amount of said target molecule by detecting the number of magnetic particles bound to said sensor surface; wherein the number of bound magnetic particles is directly or inversely related to the amount of said at least one target molecule present in the sample; iii) at the same time or at different times measuring the co-agulation activity of said blood sample, wherein said magnetic particles are magnetically actuated; and wherein the loss of mobility of said magnetic particles is detected by measuring the light reflected from said immobilized magnetic particles near or at said sensor surface; and wherein the change of detected light signal is indicative of an increase of viscosity and/or a clotting of the blood sample; and wherein the magnetic particles in steps i) to iii) are magnetically actuated using a magnetic field generator.. .
|Method and system for magnetic actuated mixing to prepare latex emulsion|
A method and system for magnetic actuated mixing which use magnetic particles and magnetic field to facilitate the mixing for preparing latex emulsion. In embodiments, a suitable process includes dissolving a resin in an organic solvent, optionally adding a surfactant, adding a neutralization agent and water, adding magnetic particles, and subjecting the mixture to a magnetic actuated mixing to form a latex emulsion.
|Method and system for magnetic actuated mixing|
A method and system for magnetic actuated mixing which use magnetic particles and electromagnetic field to facilitate the mixing. The method and system use magnetic particles and a generated electromagnetic field to facilitate the milling as well.
|Organic magnetic field sensor|
An organic, spin-dependent magnetic field sensor (10) includes an active stack (12) having an organic material with a spin-dependence. The sensor (10) also includes a back electrical contact (14) electrically coupled to a back of the active stack (12) and a front electrical contact (16) electrically coupled to a front of the active stack (12).
|Use of nuclear spin impurities to suppress electronic spin fluctuations and decoherence in composite solid-state spin systems|
A solid state electronic spin system contains electronic spins disposed within a solid state lattice and coupled to an electronic spin bath and a nuclear spin bath, where the electronic spin bath composed of electronic spin impurities and the nuclear spin bath composed of nuclear spin impurities. The concentration of nuclear spin impurities in the nuclear spin bath is controlled to a value chosen so as to allow the nuclear spin impurities to effect a suppression of spin fluctuations and spin decoherence caused by the electronic spin bath.
|Magnetic field measuring apparatus and method for manufacturing same|
In order to provide a magnetic field measuring apparatus facilitating the pressure control in a gas cell, or capable of inspecting the internal pressure of the gas cell without using any special process, the magnetic field measuring apparatus is configured such that a process layer of the magnetic field measuring apparatus has such a structure that includes a first hollow portion and a second hollow portion provided opposed to first hollow portion with a first isolation wall interposed therebetween. Alternatively, a method for manufacturing the magnetic field measuring apparatus includes breaking the first isolation wall after generating alkali metal (fig.
|Apparatus and method for non-destructive inspections|
An apparatus and a method are provided for the inspection of ferromagnetic components using magnetic particles, particularly for in-situ inspection of parts of power plants, with the apparatus including a movable chassis defining a magnetic yoke with a central opening over a surface of the component to be inspected and a discharge nozzle to inject the magnetic particles onto the surface, a magnetic field source for generating a magnetic field on at least part of the surface below the opening and a probe to measure a representation of the spatial distribution of the magnetic particles on the surface.. .
|Distance measurement sensor based on magnetic signal triangulation|
The subject invention reveals a distance measuring device comprising: a sensing module, a target module, and an evaluating module, wherein the sensing module and the target module are mountable so as to execute a movement with respect to each other along a movement trajectory, wherein the target module comprises a magnetic field generating element having a magnetic pole axis, wherein the sensing module comprises a first magnetic field sensing array being arranged distant to the movement trajectory. The sensing module and the target module can advantageously be situated within the pressurizable chamber of an air spring which is defined by (contained within) a first mounting plate, a second mounting plate, and a flexible member of the air spring..
|Determining direction of an object using low frequency magnetic fields|
A method for determining direction of travel of a tag is described. The method includes a tag that receives sample signals from two spatially separate lf magnetic fields generated by an exciter.
|Feed unit, feed system, and electronic device|
A feed unit includes: a power transmission section configured to perform power transmission using a magnetic field or an electric field, to a device to be fed including a secondary battery; and a power-transmission control section configured to control power transmission operation in the power transmission section. In a charging period in which charging to the secondary battery is performed based on transmitted power in the power transmission, when the device to be fed including the secondary battery is activated, the power-transmission control section controls the power transmission operation, to increase the transmitted power..
|Power feeding unit, power feeding system, and electronic unit|
A power feeding unit includes an electricity transmission section configured to perform electricity transmission using one of a magnetic field and an electric field to a power-feeding objective unit having a secondary battery, and an electricity transmission control section configured to control electricity transmission operation of the electricity transmission section. The electricity transmission control section allows the electricity transmission operation to be suspended when charge of the secondary battery is completed based on power provided through the electricity transmission, and allows the electricity transmission operation to be restarted when a predetermined condition is satisfied after completion of the charge..
|Magnetic gear arrangement|
A magnetic gear arrangement is provided having a first gear member that generates a first magnetic field and a second gear member that generates a second magnetic field. A plurality of interpoles are disposed between the two gear members for coupling the first and second magnetic fields to control a gear ratio between the gear members.
A wind turbine comprising a main generator; a tower with a frame; a hub carrying one or more blades and being rotatably mounted on the frame; a plurality of power-producing windings mounted to the hub and a plurality of magnetic field windings mounted to the frame, in such a way that said power-producing windings and said magnetic field windings make up at least one auxiliary asynchronous generator; a power source; and a power electronic converter for each auxiliary asynchronous generator. Each power electronic converter being electrically connected with the power source and with the magnetic field windings of its related auxiliary asynchronous generator, such that each power electronic converter can control operation of its related magnetic field windings..
|Terahertz radiation source mounting arrangements and methods of mounting a terahertz source|
Methods and apparatus for detecting variations in electromagnetic fields, in particular, terahertz (thz) electromagnetic fields, are provided. The methods and apparatus employ polarization detection devices and controllers to maintain or vary the polarization of modulated signals as desired.
|Stage apparatus, drawing apparatus, and method of manufacturing article|
A stage apparatus includes: a stage; a linear motor configured to drive the stage; a magnetic shield unit configured to surround the linear motor to shield a magnetic field generated by a magnet of the linear motor; and a degaussing coil located in a space surrounded by the magnetic shield unit and configured to degauss the magnetic shield unit.. .
|Apparatus and method for drilling fluid density separator using magnets|
An apparatus is disclosed for separating minerals in drilling fluid based primarily on density. The separator creates and maintains a slurry with a controllable density for separating minerals from drill cuttings.
|Self-ionized and inductively-coupled plasma for sputtering and resputtering|
A magnetron sputter reactor for sputtering deposition materials such as tantalum, tantalum nitride and copper, for example, and its method of use, in which self-ionized plasma (sip) sputtering and inductively coupled plasma (icp) sputtering are promoted, either together or alternately, in the same or different chambers. Also, bottom coverage may be thinned or eliminated by icp resputtering in one chamber and sip in another.
|Magnetron plasma apparatus|
A magnetron plasma apparatus boosted by hollow cathode plasma includes at least one electrically connected pair of a first hollow cathode plate and a second hollow cathode plate placed opposite to each other at a separation distance of at least 0.1 mm and having an opening following an outer edge of a sputter erosion zone on a magnetron target so that a magnetron magnetic field forms a perpendicular magnetic component inside a hollow cathode slit between plates and, wherein the plates and are connected to a first electric power generator together with the magnetron target to generate a magnetically enhanced hollow cathode plasma in at least one of a first working gas distributed in the hollow cathode slit and a second working gas admitted outside the slit in contact with a magnetron plasma generated in at least one of the first working gas and the second working gas.. .
|Magnetic system for controlling the operating mode of an overrunning coupling assembly and overrunning coupling and magnetic control assembly having same|
A magnetic system for controlling the operating mode of an overrunning coupling assembly is provided. The system includes a ferromagnetic or magnetic element received within a pocket in an uncoupling position and is movable outwardly from the pocket to a coupling position.
|Autonomous valve control and monitoring|
Apparatus and associated methods relate to an autonomous controllable valve system for providing turbulent flow to a cleaning solution during a valve-cleaning operation, the valve system includes a valve and a valve controller, the valve has an mr sensor array arranged to receive a magnetic field from a magnet coupled to the valve stem, the mr sensor array generating signals indicative of a valve stem position, the valve controller receiving the position signals and generating a control signal for a valve actuator to move the valve stem to a cleaning position between a closed position and a maximal-open position. The cleaning position may be less than twenty percent of a distance between the closed position and the maximal open position.
|Magnetic implants and methods for treating an oropharyngeal condition|
Magnetic devices and implantation methods are provided for use in the treatment of obstructive sleep apnea. The devices include a sheet-like element having ferromagnetic qualities.
|Method and system for magnetic actuated milling for pigment dispersions|
A method for preparing a pigment dispersion includes a) adding a pigment, a surfactant, and a solvent into a vessel, b) adding magnetic particles into the vessel; and c) applying a varying magnetic field to move the magnetic particles to mill down pigment particle size. A system for preparing a pigment dispersion includes a) a vessel for holding a solution comprising pigment particles, a surfactant and a solvent, b) magnetic particles added to the solution, c) a source for applying a varying magnetic field to move the magnetic particles to mill down pigment particle size, and d) a collector for collecting the magnetic particles for re-using at a later time..
|Magnetic heating/cooling apparatus|
[means to solve problem] a magnetic cooling/heating apparatus comprising: a heat transfer unit 1000a comprising a plurality of heat transfer devices 50-1, 50-2, . .
|Thermo-magnetic cycle apparatus|
A magneto-caloric effect type heat pump apparatus provides a thermo-magnetic cycle apparatus. A magnetic field modulating device has a rotary permanent magnet.
|Heat pump with magneto caloric materials and variable magnetic field strength|
A heat pump system is provided that uses mcm for heating or cooling. A magnetic field of decreasing flux intensity is used to decrease power consumption and reduce e.g., the size of one or more magnetic devices associated with creating the magnetic field.