|| List of recent Magnetic Field-related patents
| Loudspeaker, an armature and a method|
A loudspeaker having a first magnet configured to output a first magnetic field in a first magnet gap, an elongate armature extending through the first magnet gap, a first coil configured to generate a magnetic flux in the armature, a first diaphragm, a first element configured to transfer force and/or movement from the armature to the first diaphragm, a base and a first and a second support element, the first support element connecting the armature to the base at a first longitudinal position at a first side of a predetermined portion along the length of the armature, and the second support element connecting the armature to the base at a second longitudinal position at a second, opposite side of the predetermined portion. The base may flex between a u-shape and an inverted u-shape and may thus provide force to move the diaphragm..
Sonion Nederland B.v.
| Actuator of a flap of a thermal engine air circuit|
The invention relates to a actuator (1) of a flap of a thermal engine air circuit, including: an engine (10) including a rotor (11) provided with a magnetic field source and a stator (12) provided with a magnetic field source, the stator (12) and the rotor (11) being concentric, and one among the magnetic field source of the rotor (11) and the magnetic field source of the stator (12) being formed by a winding of electrical conductors, while the other among the magnetic field source of the rotor (12) and of the stator (11) is formed by at least one permanent magnet, and a body (2) of the actuator, including a housing (3) which holds the electrical engine (10), the electrical engine (10) being such that when it is held in the housing (3) of the body (2), the magnetic field source that is closest to the body (2) is the winding of electrical conductors.. .
Valeo Systemes De Controle Moteur
| Vehicular electrical architecture of both wireless power and communication peripherals using mrc|
A system for providing power signals to peripheral devices on a vehicle using magnetic resonance coupling. The system includes a transmitter circuit having a variable current source, a base coil and a variable capacitor, where the current source and the capacitor are tuned to provide a predetermined ac current to the base coil so as to generate an oscillating magnetic field at a predetermined frequency.
Gm Global Technology Operations Llc
| Power supply apparatus, power supply method, and storage medium|
A power supply apparatus includes an output unit that wirelessly outputs electric power to an electronic device, a communication unit that wirelessly communicates with the electronic device, a detecting unit that detect a current flowing to the output unit, and a control unit that performs a process to limit the current flowing to the output unit in a case where the current detected by the detecting unit is greater than or equal to a predetermined value set according to a predetermined magnetic field strength while the output unit outputs the electric power to the electronic device.. .
Canon Kabushiki Kaisha
| Method and wireless magnetic power transmission|
Systems for wirelessly transmitting power to an implanted medical device. The wireless transmission system including a first and second transmitting coil both the first and second coil having substantially equal diameters and at least one conductor winding.
| Bi-directional magnetic permeability enhanced metamaterial (mpem) substrate for antenna miniaturization|
A bi-directional antenna includes a plurality of unit cells stacked in two perpendicular planes (y-x and z-x planes) to form cube shaped unit cells whereby inductive loops are placed on four faces corresponding to the y-x and z-x planes. Each unit cell includes a magnetic permeability enhanced metamaterial.
| Arrangements for an integrated sensor|
An integrated circuit can have a first substrate supporting a magnetic field sensing element and a second substrate supporting another magnetic field sensing element. The first and second substrates can be arranged in a variety of configurations.
Allegro Microsystems, Llc
| Magnetic shielded integrated circuit package|
Embodiments of the present disclosure are directed towards magnetic shielded integrated circuit (ic) package assemblies and materials for shielding integrated circuits from external magnetic fields. In one embodiment, a package assembly includes a die coupled with a package substrate and a mold compound disposed on the die.
| Device and thermoelectronic energy conversion|
A thermoelectronic energy converter device (100) comprises an electron emitter (11) being adapted for a temperature-dependent release of electrons (1), an electron collector (21) being adapted for collecting the electrons (1), wherein the electron collector (21) is spaced from the electron emitter (11) by an evacuated gap (2), a gate electrode (31) being arranged between the electron emitter (11) and the electron collector (21) for subjecting the electrons (1) in the gap (2) to an accelerating electric potential, wherein the gate electrode (31) has a plurality of electrode openings (34) being arranged for transmitting electrons (1) miming from the electron emitter (11) to the electron collector (21), and a magnetic field device (50) being arranged for creating a magnetic field with magnetic field lines extending between the electron emitter and the electron collector (11, 21), wherein the magnetic field device (50) is arranged such that at least a portion of the magnetic field lines pass through the electrode openings (34). Furthermore, a method of converting energy using the thermoelectronic energy converter device (100) is described..
The Board Of Trustees Of The Leland Stanford Junior University
| Plasma source|
This invention relates to magnetically enhanced cathodic plasma deposition and cathodic plasma discharges where the charged particles can be guided in a rarefied vacuum system. Specifically, a cluster or combination of cathodic plasma sources is described where a least two plasma source units are arranged in a rarefied gas vacuum system in such way that the resulting magnetic field interaction offers a guided channelling escape path of electrons in essentially perpendicular direction to the main bulk of neutral particles and droplets generated in the cathodic plasma source.
Magnetic trip device of a thermal magnetic circuit breaker having a stabilizer element
A magnetic trip device of a thermal magnetic circuit breaker, a thermal magnetic circuit breaker that includes such a magnetic trip device, and a method for adjusting a magnetic field area of a magnetic trip device of a thermal magnetic circuit breaker, are disclosed. In an embodiment, the magnetic trip device includes at least an armature locator moveable arranged on a pin in order to adjust a magnetic field area, and an armature element fixed on a lower surface of the armature locator in order to interact with a yoke.
Magnetic trip device of a thermal magnetic circuit breaker having an adjustment element
A magnetic trip device of a thermal magnetic circuit breaker and a thermal magnetic circuit breaker including such a magnetic trip device, and also a method for adjusting a magnetic field area of a magnetic trip device of a thermal magnetic circuit breaker, are disclosed. In at least one embodiment, the magnetic trip device includes at least an armature locator moveable arranged at a pin in order to adjust a magnetic field area, and an armature element fixed on a lower surface of the armature locator in order to interact with a yoke, arranged near a current conductive element for conducting electric energy.
Magnetic tripping device and overcurrent tripping device of an electrical switch and electrical switch and calibrating the magnetic tripping of a magnetic tripping device
An overcurrent tripping device of an electrical switch for interrupting a current flow in an electrical circuit in the event of the occurrence of an overload or a short circuit is disclosed. In an embodiment, the overcurrent tripping device includes a thermal tripping device and a magnetic tripping device.
Direct current switch with a device for arc extinction independent of current direction
A direct current switch with a device for arc extinction independent of current direction includes at least two interconnected switch units, each switch unit having at least one current path having an interruption surface and having at least two switch contact elements for forming the interruption surface. An arc extinction device is associated with one or a plurality of current paths of the switch units.
Eaton Electrical Ip Gmbh & Co. Kg
Low cost wireless (resistive) sensor based on impedance coupling/modulation using mrc
A system for transmitting data signals from a sensor on a vehicle through magnetic resonance coupling (mrc). The system includes a control circuit having a base coil, a variable current source, a variable capacitor and a control load, where the variable current source and the capacitor are tuned to provide a predetermined ac current to the base coil so as to generate an oscillating magnetic field at a predetermined frequency.
Gm Global Technology Operations Llc
Aggregation and control of magneto-responsive entities
Applicants have discovered a novel apparatus and method to aggregate and displace a plurality of magneto-responsive entities (steerable self-propelled entities or sspes) in three dimensions using time-multiplexing. The apparatus for controlling aggregation of sspes in a body comprises at least three sets of magnetic field sources arranged in three axes for generating a controlled magnetic field and a controller connected to at least one of said magnetic field sources to create a three dimensional convergence point.
Corporation De L'ecole Polytechnique De Montreal
Rotary resistance device
A rotary resistance device providing resistance to rotary object includes a magnetic field generating assembly having a magnetizable main body, an even number of magnetizable extended bodies, magnetizable coils and separators, two first caps, and two shaft sections; a magnetizable outer cylinder enclosing the magnetic field generating assembly therein and rotatably connected to the shaft sections; and a magnetorheological fluid filled in a space formed between the magnetic field generating assembly and the magnetizable outer cylinder. The magnetizable extended bodies have the magnetizable coils wound thereon and are radially equally spaced on the magnetizable main body; the separators are respectively connected to between two adjacent magnetizable extended bodies; the first caps are closed onto two ends of the assembled magnetizable main body, magnetizable extended bodies and separators to seal the magnetizable coils in the magnetic field generating assembly; and the shaft sections are fixedly connected to the first caps..
National Taipei University Of Technology
Method for manufacturing high-performance ndfeb rare earth permanent magnetic device
A method for manufacturing a high-performance ndfeb rare earth permanent magnetic device which is made of an r—fe—co—b-m strip casting alloy, a micro-crystal hr—fe alloy fiber, and tmgn compound micro-powder, includes steps of: manufacturing the r—fe—co—b-m strip casting alloy, manufacturing the micro-crystal hr—fe alloy fiber, providing hydrogen decrepitating, pre-mixing, powdering with jet milling, post-mixing, providing magnetic field pressing, sintering and ageing, wherein after a sintered ndfeb permanent magnet is manufactured, machining and surface-treating the sintered ndfeb permanent magnet for forming a rare earth permanent device.. .
Shenyang General Magnetic Co., Ltd.
Method for manufacturing ndfeb rare earth permanent magnet containing ce
A method for manufacturing a ndfeb rare earth permanent magnet containing ce whose raw material includes a ce-lr-fe—b-ma alloy, a ce-hr-fe—b-mb alloy, and metallic oxide micro-powder; wherein the lr at least includes nd and pr, and the lr does not include ce; wherein the hr at least includes dy or tb, and the hr does not include ce; wherein the ma is selected from a group consisting of al, co, nb, ga, zr and cu; wherein the mb is selected from a group consisting of al, co, nb, ga, zr, cu and mo; includes steps of: melting the ce-lr-fe—b-ma alloy, melting the ce-hr-fe—b-mb alloy, providing hydrogen decrepitating, adsorbing with the metallic oxide micro-powder and powdering, providing magnetic field pressing, sintering and ageing, for forming a ndfeb rare earth permanent magnet.. .
Shenyang General Magnetic Co., Ltd
High density magnetic random access memory
A method for writing to a magnetic memory comprising: providing a plurality of magnetic tunnel junctions arranged into columns and rows, applying a first current to a first conductive line coupled to a row of magnetic tunnel junctions at their ends adjacent to a free ferromagnetic layer to produce a bias magnetic field; and applying a second current to a second conductive line electrically coupled to a column of magnetic tunnel junctions at their ends adjacent to a pinned ferromagnetic layer to produce a spin momentum transfer in the free ferromagnetic layer of a first magnetic tunnel junction disposed at a first intersection region formed by the first conductive line and the second conductive line; wherein a joint effect of the first and second currents applied simultaneously reverses a magnetization direction of the free ferromagnetic layer of the first magnetic tunnel junction. Other embodiments of the magnetic memory are disclosed..
Security tag with magnetic gate
Systems (100) and methods (1300) for selectively preventing an unauthorized detachment of a security tag (100) from an article (114). The methods involve: coupling the security tag to the article by locking a tack assembly (110) to a securement member (206) disposed within a housing (104) of the security tag; guiding an external tool (102) into a channel (500) formed within the security tag for releasing the tack assembly from the securement member; and obstructing the external tool's access to the securement member by biasing a post (602) into a first position in which the post at least partially extends into the channel.
Tyco Fire & Security Gmbh
Rfid system and associated antenna-coupler
A rfid system and an associated antenna-coupler are provided. The system may be for selectively communicating with a targeted transponder from among a group of multiple adjacent transponders is provided.
Radio frequency sensor
An apparatus includes a radio frequency radiator circuitry including an elongated radio frequency resonator and configured to generate an electromagnetic field extending from the radio frequency resonator, a measurement circuitry configured to measure an electric property of the radio frequency resonator responsive to a proximity of an object when the radio frequency radiator circuitry is generating the electromagnetic field, and a processing circuitry configured to convert the measured electric property into a user input command.. .
Polar Electro Oy
Multiple receivers for airborne electromagnetic surveying
The invention discloses a receiver section towed by an airborne electromagnetic survey system, comprising a plurality of receivers, each receiver comprising at least one receiver coil. The invention further discloses an airborne electromagnetic survey system, comprising: (a) a transmitter section for generating a primary electromagnetic field that induces a secondary electromagnetic field; and (b) a receiver section for detecting the secondary electromagnetic field, wherein the receiver section comprises a plurality of receivers, each receiver further comprising at least one receiver coil; and a tow assembly for an airborne electromagnetic surveying system, comprising a means for suspending a receiver section from an aircraft, the receiver section comprising a plurality of receivers each receiver comprising at least one receiver coil..
Fugro Canada Corp.
T2 inversions with reduced motion artifacts
A method for processing nuclear magnetic resonance (nmr) measurement data includes: receiving, with a processor, nmr measurement data obtained from an nmr tool, the nmr measurement data being affected by a motion artifact and having a first echo train obtained with a long polarization time twet and a second echo train obtained with a short polarization time twtl that is shorter than twet; and at least one of (i) reducing, with a processor, an effect on the nmr measurement data of the motion artifact using the first echo train and the second echo train and (ii) identifying, with a processor, the motion artifact using the first echo train and the second echo train; wherein the motion artifact is related to a magnetic field magnitude that varies in a volume of interest due to a motion of the nmr tool.. .
Baker Hughes Incorporated
Magnetic resonance imaging device, and determination high-frequency magnetic field conditions
With an mri apparatus using a transmission coil having multiple channels, a region desired to be diagnosed is efficiently imaged with high image quality. The mri apparatus comprises a region setting means for setting a region in an imaging region, of which high quality image is desired to be obtained, as a first region, and an optimization means for determining at least one of amplitude and phase of a radio frequency wave transmitted to each of the multiple channels as a radio frequency magnetic field condition, and the optimization means determines the radio frequency magnetic field condition so that at least one of specific absorption ratio and signal value of a region that generates artifacts is not higher than a predetermined value defined for each, under a uniformity constraint condition that uniformity of radio frequency magnetic field distribution in the first region is not lower than a predetermined value..
Hitachi Medical Corporation
Magnetic resonance imaging method and apparatus
In an mri method and apparatus a bloch-siegert method is used to establish a scaling factor of an excitation magnetic field that excites nuclei in a subject. A method involving two flip angles is executed to obtain a spatial distribution of longitudinal relaxation times of the excited nuclei so as to reconstruct a longitudinal relaxation time spatial distribution image, wherein the scaling factor is used to correct the two flip angles.
Isolating mr magnetic field probes from external rf irradiation
An arrangement for carrying out dynamic magnetic field measurements in a mr imaging or mr spectroscopy apparatus comprises at least one magnetic field probe (2) comprising a mr active substance (4), means (8, 10) for pulsed mr excitation of said substance and means (8, 10) for receiving an mr signal generated by said substance. The magnetic field probe further comprises a radio frequency shield (12) against external high-frequency electromagnetic field irradiation substantially surrounding the magnetic field probe.
Skope Magnetic Resonance Technologies Gmbh
Highly efficient diagnostic methods for monolithic sensor systems
Embodiments relate to integrated circuit (ic) sensors and more particularly to ic sensor diagnostics using multiple (e.g., redundant) communication signal paths, wherein one or more of the communication signal paths can be diverse (e.g., in hardware, software or processing, an operating principle, or in some other way) from at least one other of the multiple communication signal paths. Embodiments can relate to a variety of sensor types, implementations and applications, including 3d magnetic field and other sensors..
Infineon Technologies Ag
Method of detecting label particles
The invention relates to a method for the detection of target components that comprise label particles, for example magnetic particles (1). The method includes (a) collecting the target components at a binding surface (12, 112, 512) of a carrier (11, 111, 211, 311, 411, 511); (b) directing an input light beam (l1, l1a, l1b) into the carrier such that it is totally internally reflected in an investigation region (13, 313a, 313b) at the binding surface (12, 112, 512); and (c) determining the amount of light of an output light beam (l2, l2a, l2b) that comprises at least some of the totally internally reflected light.
Koninklijke Philips N.v.
Methods, systems, and computer program products for determining a property of construction material
Methods, systems, and computer program products for determining a property of construction material. According to one aspect, a material property gauge operable to determine a property of construction material is disclosed.
Troxler Electronic Laboratories Inc.
Automatically updating hard iron and soft iron coefficients of a magnetic sensor
Apparatuses, methods and systems apparatus for automatically updating hard iron and soft iron coefficients of a magnetic sensor of a device are disclosed. One method includes making measurements of a magnetic field by the magnetic sensor during rotations of the device, determining by at least a criterion whether to input the measurements of the magnetic field into a coefficient estimator, calculating, by the coefficient estimator, new hard iron and soft iron coefficients upon receiving the measurements of the magnetic field, determining a quality of the newly calculated hard iron and soft iron calculated coefficients, and updating existing hard iron and soft iron coefficients to the newly calculated hard iron and soft iron coefficients only if the quality of the newly calculated hard iron and soft iron coefficients..
Pni Sensor Corporation
Method for operating a nuclear magnetic flowmeter
A method for operating a nuclear magnetic flowmeter having a measuring device for determining the flow of the medium through the measuring tube, the measuring device having a magnetic field generator for generating a magnetic field permeating the medium and the measuring tube and for carrying out nuclear magnetic measurements of measuring volumes that are adjustable in position and size in the magnetic field. The nuclear magnetic measurements involve adjusting the size of the measuring volume, positioning the measuring volume, generating excitation signals for exciting the medium, transmitting excitation signals into the measuring volume and measuring echo signals caused by the excitation signals.
Brushless linear rotary transformer
A brushless linear rotary transformer apparatus for determining angular position and velocity of a rotor includes a rotor, a stator, a primary coil winding, pairs of secondary coil windings, bearings, an excitation power supply, and a signal receiving and processing system. The primary coil winding is wrapped around a hollow cylinder body on one end of the stator.
Low-power orientation estimation
Apparatuses, methods and systems apparatus for low-power orientation estimation are disclosed. One apparatus includes an accelerometer, wherein the accelerometer generates a sensed acceleration of the accelerometer, a magnetic sensor, wherein the magnetic sensor generates a sensed magnetic field ambient to the magnetic sensor, a gyroscope, wherein the gyroscope generates a sensed orientation of the gyroscope, wherein at least one of the accelerometer, the magnetic sensor and the gyroscope operates at a first sampling rate.
Pni Sensor Corporation
Nuclear magnetic resonance gyroscope system
One embodiment includes a nuclear magnetic resonance (nmr) gyroscope system. The system includes a vapor cell that encloses an alkali metal and a gyromagnetic isotope.
Northrop Grumman Systems Corporation
An ion thruster, comprising: a discharge chamber for accelerating ions towards one direction; an inflow opening for intake of a propellant into the discharge chamber; a discharge cathode, shaped in a form of a propeller, for releasing electrons in the discharge chamber, thereby ionizing the propellant in the discharge chamber, wherein the discharge cathode is rotatable around an axis, thereby propelling inward to the discharge chamber the propellant thereof; an outflow opening for exhausting the ions from the discharge chamber; and an accelerator electrode, shaped in a form of a propeller, for accelerating the ions towards the one direction of the outflow opening, wherein the accelerator electrode is rotatable around an axis, thereby propelling outward from the discharge chamber the ions and neutral atoms thereof; wherein the ion thruster comprises electromagnetic coils for generating a magnetic field inside the discharge chamber.. .
Method of orienting a second borehole relative to a first borehole
A method for creating a second borehole in an earth formation at a selected orientation relative to a first borehole, wherein a position parameter represents a position of the first borehole. The method comprises: a) providing a borehole element that generates a magnetic field; b) measuring the magnetic field; c) installing the borehole element in the first borehole; d) measuring the magnetic field in the second borehole; e) providing a finite element model of the magnetic field; f) calculating the magnetic field in the second borehole using the finite element model, and determining a difference between the calculated magnetic field in the second borehole and the measured magnetic field in the second borehole; g) adjusting the position parameter so as to minimise said difference; and h) determining a selected direction dependent on the adjusted position parameter and further drilling the second borehole in the selected direction..
Shell Oil Company
Magnetic polymers for improving hydrocarbon recovery or drilling performance
A wall of a subterranean reservoir wellbore may be at least partially coated with magnetic polymers. Alternatively, a downhole fluid having magnetic polymers may be circulated within the wellbore to at least partially coat the wall of the wellbore with the magnetic polymers.
Baker Hughes Incorporated
Magnetic valve assembly
An actuation device comprises a housing comprising one or more ports, a magnetic valve component, and a central flowbore. The central flowbore is configured to receive a disposable member configured to emit a magnetic field, and the magnetic valve component is configured to radially shift from a first position to a second position in response to interacting with the magnetic field..
Halliburton Energy Services, Inc.
Magnetron sputtering device and fabricating thin film using magnetron sputtering device
A method is provided for depositing a thin film of material on a substrate. The method includes providing the substrate on a cathode and a target on an anode in a reaction chamber of a magnetron sputtering device, generating a magnetic field using an enhanced magnetron including an upper base plate to generate an upper magnetic field having a field strength of about 205 gauss and a lower base plate to generate a lower magnetic field having a field strength of about −215 gauss to about −370 gauss, injecting sputtering gas at low pressure into the reaction chamber, and applying power across the anode and cathode to create plasma.
Avago Technologies General Ip (singapore) Pte. Ltd.
Devices, treatment of liquids with electromagnetic fields
Devices, systems and methods for applying electromagnetic fields to liquids, such as water, to treat unwanted material in the liquid are disclosed. Such devices, systems and methods may include a cylindrically shaped, water-immersible probe configured to generate electromagnetic fields that are effective to treat unwanted materials, such as scale, and microbes in the water..
Reverse Ionizer, Inc.
Apparatus and methods for generating hydrogen from water
Apparatus and methods are provided for generating hydrogen gas from water and, in particular, apparatus and methods for dissociating hydrogen and oxygen atoms from water molecules using a rotating magnetic field.. .
System and monitoring a load bearing member
A system and method relate to magnetic hoisting member monitoring in an elevator system having an elevator car, a hoisting motor, and a magnetic hoisting member. A monitoring system is used that includes a magnetic field producer, a giant magneto-resistance sensor, a housing unit, and an indicator system.
Thyssenkrupp Elevator Ag
Online load detection device for self-balancing two-wheel vehicle
An online load detection device for a self-balancing two-wheel vehicle, comprising a support platform load detection device: the support platform load detection device comprises at least a group of magnetic detection devices; each group of magnetic detection devices comprise a permanent magnet and a magnetic sensor; the permanent magnet is supported on a support platform via an elastic member; the magnetic sensor is disposed in the easing of the support platform, and is used to detect the magnetic field change caused by the relative displacement between the permanent magnet and the magnetic sensor and output a detection signal. The detection device further comprises a seat pressure sensor disposed on a seat.
Shanghai New Century Robot Co., Ltd.
Rotational angle detecting device and electric power steering device using the same
A rotational angle detecting device has a detecting element that detects a rotating magnetic field of a magnet that is variable according to a rotation of a motor. A rotational angle calculator calculates a rotational angle and a rotation number.
Method and device for inspecting railway wheels
The present invention concerns a method and a device for inspecting railway wheels with respect to use-related wear and/or a material defect. The task of the present invention is to create a technical solution in this regard by means of which various configurations of railway wheels can be tested in a short time.
Hegenscheidt-mfd Gmbh & Co. Kg
Wireless battery charging system varying magnetic field frequency to maintain a desired voltage-current phase relationship
An electrical charging system configured to wirelessly charge an energy storage device, such as a battery. The charging system includes an off-transducer in electrical communication with an alternating power source and electromagnetically coupled to an on-vehicle transducer connected to the energy storage device.
Delphi Technologies, Inc.
Parallel kinematic mechanism and bearings and actuators thereof
An improved parallel kinematic mechanism to orient a platform has a higher range of motion for its volume due to the use of magnetically coupled ball joints at the orienting platform and the individual linear actuators operating those joints. The linear actuators may be printed circuit board (pcb) based voice coil actuators, in a magnetic field which may be generated by permanent magnets configured as a modified halbach array.
Genesis Group Inc.
Bead manipulation techniques
The invention provides a method of redistributing magnetically responsive beads in a droplet. The method may include conducting on a droplet operations surface one or more droplet operations using the droplet without removing the magnetically responsive beads from the region of the magnetic field.
Advanced Liquid Logic, Inc.
Magnetic eye shields and methods of treatment and diagnosis using the same
In certain aspects, the invention is directed to magnetic eye shields that comprise a magnet. When worn by a patient, the magnetic eye shields are configured to generate an intraocular magnetic field of sufficient magnitude and direction to move a magnetic therapeutic and/or diagnostic agent positioned inside the eye to target tissue within the eye.
Emmetrope Ophthalmics Llc
Orthodontic appliances including ferromagnetic shape memory alloys and methods of orthodontic treatment using same
A self-ligating orthodontic bracket for ligating an archwire includes a bracket body defining an archwire slot configured to receive the archwire, a movable member movable relative to the archwire slot, and an actuator coupled to at least one of the bracket body and the movable member. The actuator includes a ferromagnetic shape memory alloy and is configured to move the movable member when exposed to a magnetic field.
Targeting an orthopaedic implant landmark
A system for targeting landmarks on devices such as surgical implants is disclosed. The system can include a field generator for generating one or more magnetic fields, an orthopaedic implant located within the magnetic fields, the implant having at least one landmark, a removable probe with a first magnetic sensor, a landmark identifier and a processor.
Smith & Nephew, Inc.
Detection of the spatial location of an implantable biosensing platform and method thereof
A methodology used to pinpoint the location of an implantable biomedical sensing device is provided and is carried out by integrating miniaturized magnets, or materials with magnetic properties into the implantable bio-sensing chip to detect the position of the implant by sensing the induced magnetic field via an external communication unit. Presented here are various configurations in which magnetic positional detection can be carried out.
Device for generating an alternate radiofrequency electromagnetic field, control method and plant using such device
A device for generating an alternating radio-frequency electromagnetic field in a working area includes an applicator emitting the electromagnetic field, an oscillator providing an alternate voltage and electric current having a predetermined value and a predetermined frequency to the applicator, a power supply supplying a substantially dc voltage to the oscillator, and a control system controlling the electrical parameters of the ac voltage, the ac current and/or the frequency provided to the applicator by the oscillator. The control system includes an input port connected to the electric power network, a first electronic control connected to the input port and substantially instantaneously varying the electrical parameters and instantaneous control of the field emission power, and a second electronic control circuit regulating the operation of the oscillator.
Officine Di Cartigliano Spa
Rotary position device
The present invention relates to a rotary positioning device (100, 100′, 100″) comprising a circular magnetic track (110) generating a magnetic field across a circular air gap (113), at least three forcers (120, 121, 122), each including a plurality of coils (1201, 202, 1203) at least partly disposed with the circular air gap (113) and each being operable for generating a levitation force in a levitation direction orthogonal to the circular magnetic track and a drive force in a drive direction along the circular magnetic track, said forcers being arranged at different angular positions along said circular magnetic track, and a controller (140) for providing currents to said forcers for individually controlling the generation of a levitation force and/or a drive force by said forcers for effecting a rotational movement, and/or a tilting movement and/or a translational movement of said circular magnetic track.. .
Koninklijke Philips N.v.
Multiple coil flux pad
The present invention provides a magnetic flux pad for generating or receiving magnetic flux, comprising at least three coils positioned such that the windings thereof are in substantially the same plane, and a power supply or pickup controller operable to selectively energise or receive power from two or more of the coils such that a magnetic field is produced or received by at least one of a plurality of pairs of the at least three coils. In preferred embodiments, the three or more coils are substantially mutually decoupled, overlapping, and/or equidistantly spaced from one another..
Auckland Uniservices Limited
Optimized current bus
A current bus that includes an opening that extends from one side of the current bus to an opposing side of the current bus. The opening changes in size as the opening extends from one side of the current bus to the opposing side of the current bus.
Honeywell International Inc.
Mandrel-wound magnetic antenna and making same
An antenna includes an electrical excitation component and a core component. The electrical excitation component has and input, an output and a conducting component.
Method for improving photovoltaic cell efficiency
A method of generating electricity from light, that uses a photovoltaic array, that includes a junction between an electron-donating layer and an inorganic electron-accepting layer. The electron-donating layer includes moieties which after photon activation have unpaired electrons, and wherein some of the electrons are freed when light strikes the electron-donating layer, thereby transforming the moieties into free radicals or equivalents but many of the freed electrons recombine.
Plasma apparatus, magnetic-field controlling method, and semiconductor manufacturing method
Embodiments of a plasma apparatus are provided. The plasma apparatus includes a processing chamber and a wafer chuck disposed in the processing chamber.
Taiwan Semiconductor Manufacturing Co., Ltd.
High energy density electrostatic capacitor
A solid state electrical energy state storage device includes multiple dielectric layers or an integral heterogeneous dielectric layer. Layers or portions of the heterogeneous layer have permittivity augmented by exposing the dielectric material to electric/magnetic fields during formation of the dielectric before complete solidification.
Carver Scientific, Inc.
Method for producing a film comprising three-dimensional magnetic microstructures
A method for producing a film including a non-magnetic matrix and a plurality of three-dimensional magnetic microstructures arranged within the matrix according to a predetermined pattern. The method includes providing a master substrate with a magnetically structured face formed from a plurality of magnetic field micro-sources, having a magnetic field gradient of between 102 and 106 t/m.
Universite Joseph Fourier-grenoble 1
Antenna coil unit
The antenna coil unit includes a main coil and an auxiliary coil electrically insulated from the main coil, the auxiliary coil being arranged at a position in which an induction current is produced by a magnetic field produced by an electric current flowing through the main coil. The auxiliary coil is configured in a state in which a frequency deviating by a predefined amount in a predefined direction from a target frequency predefined within a harmonic component of the fundamental component of an electromagnetic wave produced by the electric current flowing through the main coil is taken as a resonance frequency.
Equos Research Co., Ltd
Magnetic write head characterization with nano-meter resolution using nitrogen vacancy color centers
A crystal film with one or more nitrogen vacancy centers is placed in close proximity to a recording head. A magnetic field or heat produced by the recording head as well as excitation illumination and an excitation field is applied to the crystal film.
Infinitum Solutions, Inc.
There is provided a haptic device including a small-size haptic unit. The haptic device includes a weight, a magnet fixed to the weight, a coil that generates a magnetic field to reciprocate the magnet along a predetermined direction, and a current control unit that presents a haptic sensation to a user by controlling a current flowing in the coil to vibrate the weight..
Sony Computer Entertainment Inc.
System and a baseband nearfield magnetic stripe data transmitter
A system for a baseband near field magnetic stripe data transmitter includes a mobile phone, a magnetic stripe transmission (mst) device and a payment button. The mobile phone includes a payment wallet application and is configured to transmit a stream of pulses including magnetic stripe data of a payment card.
Operation terminal manufacturing apparatus, and manufacturing system including the same
The object is to provide a manufacturing system allowing operation of a manufacturing apparatus intended by an operator to operate. A manufacturing system includes a manufacturing apparatus, and an operation terminal apparatus capable of communicating with the manufacturing apparatus, wherein an id tag including id information on the manufacturing apparatus is attached to the manufacturing apparatus, and the operation terminal apparatus includes: an id reader that generates current in the id tag through a magnetic field and reads the id information from the id tag; and a control unit that allows the manufacturing apparatus to be operated only after reading the id information..
Canon Kabushiki Kaisha
Magnetic and/or electrostatic pivot
A method for orienting a timepiece component including ferromagnetic material, where, on both ends of this component, two magnetic fields each attract it onto a pole piece, with an unbalance in the intensity of these fields around this component, in order to create a differential in the forces thereon and to press one of these ends onto a contact surface of one of the pole pieces, and to hold the other end at a distance from the other pole piece. A magnetic pivot includes such a component with two ends.
Montres Breguet S.a.
Cable detection apparatus with a comb filter
An apparatus that uses harmonics of the power line frequency at which electrical power is distributed is presented. The apparatus includes a sensor antenna to detect an electromagnetic field produced by a cable.
Tracking positions of personnel, vehicles, and inanimate objects
A device rotates at least one static magnetic field about an axis, producing a rotating magnetic dipole field, and is movable in relation to the surface of the ground. The field is periodically sensed using a receiver to produce a receiver output responsive to the field.
Merlin Technology, Inc.
Method and system for mapping a geological structure of a formation on one side of a surface using magnetic moments of different values
A method for mapping geological structures of a formation on a side of a surface, includes: generating a magnetic moment using at least one magnetic moment generator to build up a magnetic field in the formation in an on-period, wherein the magnetic moment has a moment strength, and wherein the magnetic moment is positioned on another side of the surface; changing the magnetic moment to change the magnetic field; and making at least one record in a recording device at a recording time trecord in an off-period, wherein the record includes at least a representation of the change in the magnetic field and/or a representation of the magnetic field obtained by a b/e-measuring unit; wherein the on-period is separated from the off-period by the act of changing the magnetic moment.. .
A detection apparatus with a self-test is presented. A detection apparatus such as a cable locator has an array of sensors in the form of ferrite antennas to detect an electromagnetic field produced by an object such as a buried cable.
Flowmeter with a measuring device implementing a tomographic measuring principle
A flowmeter for determining the flow of a multi-phase medium through a measuring tube has a first and a second measuring device, one of which operates on a tomographic measuring principle and one of uses a measuring principle based on nuclear magnetic resonance. The first measuring device operates in a different manner from the second measuring device, e.g., using a measuring device operating on the measuring principle of pre-magnetization contrast measurement and having a pre-magnetization section with a constant magnetic field.
Multi-channel switching system for mri matrix gradient coils
A multi-channel switching system (100) for an mri gradient coil system is characterized in that the number of channels controlled by the power amplifiers is smaller than the number of switches and the number of channels controlled by the power amplifiers is smaller than the number of coil elements in the coil system. Current in each of the coil elements can be switched to flow in either a positive or negative direction or to bypass the respective coil element and power to the switch elements is delivered via a smaller amount of power lines using a power distribution system providing floating power to each of the switches.
Superconducting magnet device and magnetic resonance imaging device
The present invention is to provide a structure that can effectively reduce quench in an open superconducting magnet. In order to do so, a pair of superconducting magnets is respectively provided with a primary coil, a shield coil to suppress a leakage magnetic field of the primary coil, and a coil bobbin.
Hitachi Medical Corporation
Magnetic field detecting device
A magnetic field detecting device which comprises a magnetic impedance sensor including a magnetic impedance element 1 in which a detecting coil 11 wound around an amorphous wire 10 for detecting and outputting the external magnetic field around the amorphous wire at a rise time and a fall time of the pulse current in case of the pulse current is applied to the amorphous wire and a signal processing device 3 includes two sample-hold circuit 31, 32 for respectively sample-holding the alternate current damped oscillation voltage at the rise time and the fall time of the applied pulse current, wherein the output signal in response to the external magnetic field around the amorphous wire is output based on the detected two alternate current damped oscillation voltages output at the rise time and the fall time of the pulse current.. .
Aichi Steel Corporation
A connector for being attached to a power-supply unit including a switching element and for mating with a mating connector of a wire harness, the connector including a connecting terminal including an end portion connected to an output terminal in a casing of the power-supply unit, a housing fixed to the casing and enclosing at least a portion of the connecting terminal, a current sensor enclosed in the housing so as to detect a magnetic field generated by an electric current flowing through the connecting terminal, and a signal line for transmitting an output signal of the current sensor.. .
Hitachi Metals, Ltd.
Method for manipulating droplet
A method for manipulating a droplet by a droplet manipulating device including a flow channel, a first magnetic field generator, and a second magnetic field generator is provided. The first magnetic field generator includes two first magnetic field modules and are at two sides of the flow channel.
Industrial Technology Research Institute
Sensor device for acquiring at least one rotational property of a rotating element
A sensor device for acquiring at least one rotational property of a rotating element, particularly a rotational speed of a compressor wheel of an exhaust-gas turbocharger, includes at least one magnetic field generator for generating a magnetic field at the location of the rotating element, at least one magnetic sensor, e.g., a coil, for acquiring a magnetic field generated by eddy currents of the rotating element, and at least one pole pin. The pole pin is elongated at its end facing the rotating element and includes a section that is not enclosed by the magnetic sensor.
Mahle Turbo Systems Gmbh & Co., Kg,,
An oscillating target includes a base, a stand, and a pendulum. The base includes an electromagnetic coil and a power source.
Airfoil assembly and method
Airfoil assemblies and methods of using them are provided to accelerate air flow relative to the airfoil assemblies and to improve laminar air flow over airfoils. The airfoil may include a cathode disposed near a leading portion of the airfoil to ionize on rushing air and for initiating an electric field.
Two-phase two-column linear pulse motor propulsion system
The two-phase, two-column linear pulse motor propulsion system comprises a field unit 121, 122 prepared in two columns in the longitudinal direction under a moving body 110 so as to generate a magnetic field; an armature unit 131, 132 which is prepared on a travelling track, generates a shifting field by the power supplied from a power conversion device, is prepared in two columns so as to correspond to the two-column field unit 121, 122 and generates the propulsion force of the moving body 110 through interaction due to a two-phase synchronous signal. Thus, it can improve propulsion force and acceleration/deceleration performance, compared to a linear propulsion system with one phase..
Magnetic security element having three-dimensional moving hidden image effect and printing same
The present invention relates to a magnetic security element showing a three-dimensional (3d) moving hidden image effect and a method of printing the same, which comprises the steps of: printing a predetermined line pattern on the surface of a substrate using a magnetic ink; applying a magnetic field to the pattern-formed substrate; and drying and curing the substrate to which the magnetic field was applied. According to the present invention, a hidden image can be formed, which cannot be realized by copying and reversibly appears and disappears.
Korea Minting, Security Printing & Id Card Operating Corp.
Induction welding process and device for parts made of composite materials
A device comprising at least one pressure generation unit and a heating unit, the heating unit comprising a two-sided inductor and being configured to generate a uniform alternating magnetic field in an assembly comprising two parts made of composite materials comprising carbon fibers embedded in a resin and a field absorber. The field absorber is configured to absorb the magnetic field and comprising a ferromagnetic material.
Airbus Operation (s.a.s.)
Process and device for the consolidation and induction forming of a preform made of a composite material
A consolidation device comprising a heating unit provided with at least one two-sided inductor, two walls of which are distributed on both sides of a support on which the preform is positioned, comprising carbon fibers embedded in a resin and oriented in a main direction belonging to a principal plane, as well as particles of ferromagnetic material. The two-sided inductor is capable of generating a uniform magnetic field, in order to achieve induction heating of the preform.
Airbus Operation (s.a.s.)
Magnetic core coated inorganic ion adsorbent for removing cs ions in radioactive wastewater and preparation method thereof
The invention discloses a micron-grade magnetic core coated ferrocyanide adsorbent for removing cs ions in radioactive wastewater and a preparation method thereof. The adsorbent takes magnetic fe3o4 as a core, the surface is coated with a dense sio2 single layer serving as a protective layer, and an active component is metal ion stabilized potassium ferrocyanide coated on the outer layer, wherein stabilized metal ions comprise ti, zn, cu, ni, co, and zr.
Magnetic field generator for promoting bone growth, and implant device and denture for implant protection using the same
A magnetic field generator is attachable to an implant body formed from a non-magnetic material to be inserted in a jawbone. The magnetic field generator includes a magnet body that generates magnetism.
Aichi Steel Corporation
Current diverter for magnetic stimulation of biological systems
Apparatus and methods which enable the stimulation of neurons oriented in all directions within a biological structure using applied magnetic fields.. .
Moment Technologies, Llc
Method for eliminating biofilm and other medical benefits
A method of retarding the formation of biofilm, such as dental plaque biofilm on surfaces in the mouth, is provided. The method includes passing a liquid through a vessel having a magnetic field, ingesting the liquid, and then allowing the liquid to contact surfaces within the mouth for a predetermined amount of time to prevent or reduce the formation of dental plaque biofilm on the surfaces..
Resonantly driven power toothbrush having a pressure-sensing capability using a hall effect sensor
The toothbrush includes a handle portion which includes a power drive system (14) and further includes a brushhead assembly (20), which includes a brushhead arm having a brush element (21) at a distal end thereof a drive train assembly (12) is responsive to a drive signal from the power assembly for converting the action of the power assembly to a motion of the brushhead assembly. A magnet (30) is secured to the rear of the drive train, with a hall effect sensor (32) mounted within the magnetic field produced by the magnet as the toothbrush moves in operation.
Koninklijke Philips N.v
Magnetic-based manipulation of magnetic particles
Some embodiments provide a system for external manipulation of magnetic nanoparticles in vasculature using a remotely placed magnetic field-generating stator. In one embodiment, the systems and methods relate to the control of magnetic nanoparticles in a fluid medium using permanent magnet-based or electromagnetic field-generating stator sources.
Pulse Therapeutics, Inc.
Remote traction and guidance system for mini-invasive surgery
At least one remote traction means (30) for said endoclamp (10), acting through the application of an electromagnetic field over the ferromagnetic portion of said endoclamp (10).. .
Apparatus for testing the integrity of mammary tissues
The disclosure describes an apparatus for testing the integrity of mammary tissues comprising one or more transmission antennas configured to strike a mammary tissue with a main electromagnetic field in the microwave frequency band, one or more reception antennas configured to pick up a corresponding reflected electromagnetic field, a processing unit comprising a first operating module configured to determine a main parameter representing an electrical discontinuity of the mammary tissue, and a second operating module configured to generate a signal representing a non-integrity of the mammary tissue.. .
Dielectric loaded particle accelerator
A dielectric loaded accelerator for accelerating charged particles, such as electrons, ions and/or protons, is described herein. The dielectric loaded accelerator accelerates charged particles along a longitudinal axis and towards an outlet of the accelerator.
Passive magnetic bearings for rotating equipment including induction machines
Permanent magnet bearings are incorporated into rotating equipment, such as induction machines, in addition to active magnetic or lubricated primary shaft support bearings. The passive magnetic bearings incorporate permanent magnets that generate directionally oriented magnetic fields of selective intensity.
Siemens Industry, Inc.
Superconducting field pole
Superconducting field poles each include a superconducting coil body formed by spirally winding a superconducting wire material, a ferromagnetic outer magnetic field-deflecting member arranged on an end face of the superconducting coil body at a radially outer side of a rotor, and a ferromagnetic inner magnetic field-deflecting member arranged on an end face of the superconducting coil body at a radially inner side of the rotor.. .
National University Corporation Tokyo University Of Marine Science And Technology
Power supplier and receiver and mobile device
An arrangement place for a device such as a rectifier and a power storage device is easily secured. At the time of power supply using a resonance phenomenon, a power-receiving device generates a magnetic field space having a lower magnetic field strength than other parts at or around the inner side of the power-receiving module, and this magnetic field space is used as the arrangement place of an electronic component.
Nitto Denko Corporation