| Entries |
| Document | Title | Date |
|---|
| 20080284423 | Detecting device for a motor of a ceiling fan - The invention relates to a detecting device for a motor of a ceiling fan. The motor includes a stator, a rotor, a detecting device and a circuit board. The rotor is pivotally installed around a motor shaft and the detecting device is fixed on one surface of silica steel plates of the stator. The rotor has induction magnets, which respectively have their one end to be induced with the detecting device extended with a preset length able to cover at least a detectable range of the detecting device, so as to form a reliable detecting zone between the induction magnets and the detecting device. | 11-20-2008 |
| 20080303518 | RAILCAR PRESENCE DETECTOR - A railcar presence detector including magnetic field sensors spaced along the length of a rail track for detecting magnetic field disturbances caused by ferromagnetic objects, such as railcars, passing along the rail track. Each of the magnetic field sensors generates an output signal that is received by a control unit. The control unit compares the output signal from each of the magnetic field sensors to a detection threshold and controls the position of a contact member dependent upon the comparison between the output signal and the detection threshold. Each of the magnetic field sensors includes a test device that is selectively operable to modify the magnetic field near the magnetic field sensor to test the operation of the magnetic field sensor. During operation of the system including the magnetic field sensor, the control unit can automatically activate the test device to assure that each of the magnetic field sensors are operating properly. | 12-11-2008 |
| 20090009163 | MAGNETIC SENSING DEVICE AND ELECTRONIC COMPASS USING THE SAME - Positive and negative bias magnetic fields are applied to a sensor unit | 01-08-2009 |
| 20090015250 | RESONATOR-BASED MAGNETIC FIELD SENSOR - The resonator-based magnetic field sensor system has an oscillatory member as resonator, means for driving an electrical current through said resonator such that its resonance frequency is altered by an external magnetic field to be measured (measurand), and means for detecting or measuring said altered resonance frequency. A secondary excitation of the resonator is effected to determine the said altered resonance frequency from which the measurand can be deduced. In the preferred embodiment, the secondary excitation is included in a closed loop, thus creating an oscillator vibrating at the altered resonance frequency. Though it is known to use the oscillation amplitude of a suitable resonator for this purpose, the novel sensor system identifies and/or measures the frequency (not the amplitude) of the oscillation, which is a function of the magnetic field to be measured. | 01-15-2009 |
| 20090058410 | REED RELAY FOR MAGNETIC FIELD MEASUREMENT - An apparatus for measuring a strength of a magnetic field, including a switch including contacts configured to change position when a switching threshold is reached, wherein the switching threshold is reached by modifying an external magnetic field around the switch, and a coil wound around the switch, wherein the coil is used to modify the external magnetic field, wherein a first current is driven through the coil wound around the switch until a first switching threshold is obtained, wherein a second current is driven through the coil wound around the switch until a second switching threshold is obtained, and wherein a value of the first current when the first switching threshold is reached and a value of the second current when the second switching threshold is reached are used to determine the strength of the magnetic field. | 03-05-2009 |
| 20090174400 | Arrangement for Non-Contact Defined Movement of at Least One Magnetic Body - The invention relates to an arrangement for the non-contact defined movement of at least one magnetic body, free to move in at least one dimension. A simple arrangement of this type, taking up a reduced volume, of universal application, for both positioning and orientation and also for energy generation and transmission, can be achieved, by means of arranging the body with a magnetic moment in the primary magnetic field of at least one permanent magnet which moves in a defined manner, said body having a secondary magnetic field extending from the body, aligned with the primary magnetic field. At least one magnetic field sensor is provided to record the secondary magnetic field in any position of the body. | 07-09-2009 |
| 20090184709 | Method for Interference Suppression in a Measuring Device - The present invention describes a method enabling one to shield a device that measures weak biomagnetic signals from strong magnetic interference fields. The measurement sensors are provided with a feedback compensation loop, the difference signal of which is obtained from the measurement sensors themselves. As the actuator of the feedback function, one or more coils are responsible for eliminating, the external interference fields in the region of the sensors. Difference signals can be generated as a linear combination from the signals of two or more sensors. In the control logic, the SSS method can be used to numerically separate the biomagnetic signal being measured from the signals produced by the sources—compensation coils and interference sources—disposed outside the measurement region. The interference suppression can be enhanced by placing the assembly of sensors and the actuators within a magnetically shielding room. | 07-23-2009 |
| 20090243606 | Sensor Arrangement, Integrated Chip Component with the Sensor Arrangement, and Measurement Method - A sensor arrangement has a sensor array (SA) with a first, a second, and a third sensor focus (SSP | 10-01-2009 |
| 20090295379 | ELECTROMAGNETIC FIELD MEASURING APPARATUS AND METHOD THEREFOR - A plate conductor and at least three columnar conductors erected on the plate conductor are provided. At the same time when an electric field is measured by the plate conductor, two components of a magnetic field at the same measurement points as those at which the electric field is measured are measured by a loop formed by the plate conductor and the columnar conductors at the same time. As a result, three components of an electromagnetic field formed of one component of the electric field and two components of the magnetic field are measured at the same point, with high sensitivity, and at the same time. | 12-03-2009 |
| 20090302837 | NON-LINEAR MAGNETIC FIELD SENSORS AND CURRENT SENSORS - The invention provides a magnetic field sensor or current sensor which can exhibit a substantially linear relationship between the sensor signal and the logarithm of the magnetic field or current. The sensor may be used as a wide dynamic range sensor which can offer a constant relative sensitivity and a uniform SNR over several decades. The design of the sensor device may be implemented in discrete magnetic field sensors or current sensors as well as in integrated current sensors in ICs comprising MRAM modules. | 12-10-2009 |
| 20090309590 | MAGNETIC SENSOR AND METHOD OF MANUFACTURING THEREOF - The present invention relates to a magnetic sensor with which magnetic characteristics are made extremely stable by consideration of an area of contact of a base layer of a magnetic substance and a semiconductor substrate. On a semiconductor substrate a plurality of Hall elements are embedded so as to be coplanar to a top surface of the semiconductor substrate while being mutually spaced apart by a predetermined distance, and above the Hall elements and the semiconductor substrate, a base layer, having a coefficient of thermal expansion differing from that of the Hall elements and partially covers a region of each Hall element, is formed via a protective layer, and a magnetic flux concentrator, having an area larger than the base layer and with magnetic amplification, is formed on the base layer. | 12-17-2009 |
| 20090315547 | Magnetic Field Sensor Arrangement and Method for Non-Contact Measurement of a Magnetic Field - A magnetic field sensor arrangement ( | 12-24-2009 |
| 20090315548 | HIGH SENSITIVITY MAGNETIC SENSOR - A sensor device comprising a base substrate and first and second flux concentrator fixedly attached to the base substrate. The first flux concentrator and the second flux concentrator are positioned with their proximal end regions facing and spaced apart, defining a gap therebetween. A magnetic sensor element is positioned in the gap, the sensor element moveable towards and away from the base substrate. The sensor device has a first system to offset stray magnetic fields, a second system to modulate the sensor element to detect KHz frequency, and a third system to dither noise from the first and second flux concentrators. | 12-24-2009 |
| 20090322323 | Intraluminal Magneto Sensor System and Method of Use | 12-31-2009 |
| 20100013469 | Method and Device for Simultaneous Measurement of Magnetostriction and Magnetization - Since a measurement of a magnetostriction is accompanied by a measurement of a magnetization of a sample to be measured, the magnetostriction and the magnetization are measured by separately prepared devices, with efforts for observing the coextensive volumes of the sample. Measurements of the magnetostriction and the magnetization are difficult due to the difficulty of correction and calibration. The value of macroscopic external mode magnetostrictive coefficient cannot be correctly determined at low temperature regions. A convenient method which enables the measurement of the magnetostriction and the magnetization simultaneously at the coextensive volumes of the sample, is developed by combining the method of the measurement of the magnetostriction by an X-ray diffraction method an the method of the X-ray magnetic diffraction method. This method comprises the steps of measuring the relative diffraction intensity change (δ) at ascending magnetic field and the descending magnetic field respectively in the magnetic field at the coextensive volumes of the sample, obtaining asymmetry component δ | 01-21-2010 |
| 20100013470 | RESIDUAL MAGNETIC FLUX DETERMINING APPARATUS - A residual magnetic flux measurement apparatus measures residual magnetic fluxes by using a transformer-voltage measurement means for measuring transformer voltages; a voltage delay means for delaying the measured signals; a DC-voltage-component calculation means for calculating DC voltage components from the latest transformer-voltage signals for a predetermined time period based on calculation-control signals; a voltage integration means for calculating voltage-integration signals by performing voltage integration of signals obtained after separating the DC voltage components from present transformer-voltage signals; a magnetic-flux DC-component calculation means for calculating magnetic-flux DC-components from the latest voltage-integration signals for a predetermined time period based on the calculation-control signals; a magnetic flux calculation means for obtaining magnetic flux signals in which the magnetic-flux DC-components are separated from present voltage-integration signals; and a control means for obtaining residual magnetic fluxes based on contact signals, an interruption mode, the transformer-voltage signals, and the magnetic flux signals. | 01-21-2010 |
| 20100026286 | SENSOR SYSTEM AND METHOD - A sensing system includes a conductor with a current flow path therethrough. A first location of the conductor defines a first cross-sectional area and a second location defines a second cross-sectional area, wherein a current flowing through the conductor establishes magnetic field lines having strengths that vary according the conductor cross-sectional area. A plurality of sensors include a first and second sensors situated proximate the first and second locations, respectively, and configured to measure the magnetic field lines at their respective locations. | 02-04-2010 |
| 20100090691 | DETECTING DEVICE AND DETECTING METHOD - A detecting device includes a viscoelastic magnet obtained by kneading and molding a magnet material and a viscoelastic material and a magnetic-flux detecting unit that detects a change in a magnetic flux density vector due to deformation of the viscoelastic magnet. | 04-15-2010 |
| 20100097058 | STRAIN-BASED CARBON NANOTUBE MAGNETOMETER - A carbon nanotube magnetometer including a system and method of making the same that includes a single-walled carbon nanotube network formed on a substrate. Electrodes are deposited on opposite ends of the network and a magnetic needle is deposited on the network between the electrodes. A trench is formed under the network in the substrate to facilitate movement of the needle. | 04-22-2010 |
| 20100102809 | DIFFERENTIAL GRADIOMETRIC MAGNETOMETER, SYSTEM AND METHOD OF USE - A three-dimensional real-time differential gradiometric magnetometer (DGM) array, system and method of use. The DGM exploits differential and gradiometric parametrics of an induced magnetic field anomaly surrounding an object interacting with an applied magnetic field. The DGM integrates differential magnetic field measurement with gradiometric magnetic field measurement into a single system. The DGM detects, locates and maps objects, while simultaneously measuring the distance between the DGM detection array and the object, axial orientation, apparent magnetic mass and magnetic moment. The DGM employs a signal processing technique to nullify source noise from the earth's magnetic field, external radio frequency transmissions and electromagnetic noise. A linear geometric architecture comprising a plurality of magnetometers forming the array enables the DGM to collect information directly in the spatial domain. The DGM is capable of capturing the complete field anomaly contour in three dimensions while the array traverses over, under or adjacent to an object. | 04-29-2010 |
| 20100109660 | Tunable Random Bit Generator with Magnetic Tunnel Junction - A random number generator device that utilizes a magnetic tunnel junction. An AC current source is in electrical connection to the magnetic tunnel junction to provide an AC current having an amplitude and a frequency through the free layer of the magnetic tunnel junction, the AC current configured to switch the magnetization orientation of the free layer via thermal magnetization. A read circuit is used to determine the relative orientation of the free layer magnetization in relation to the reference layer magnetization orientation. | 05-06-2010 |
| 20100141248 | Magnetostriction Apparatus - An electronic device is provided with a magnetostriction apparatus and a main body. The magnetostriction apparatus includes a super magnetostrictor which extracts and contracts in accordance with a magnetic field, a coil and bias magnets which generate the magnetic field, and a housing which maintains the components at predetermined positions. The magnetostriction apparatus is fitted to the main body such that the super magnetostrictor is perpendicular to the face of the main body where the apparatus is fitted. The housing is connected to the main body so that a predetermined pressure is applied to the super magnetostrictor by the main body and the housing. | 06-10-2010 |
| 20100141249 | Magnetic Field Sensors and Methods for Fabricating the Magnetic Field Sensors - Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator. | 06-10-2010 |
| 20100141250 | MAGNETIC SENSOR MODULE - In a magnetic sensor module, using die-bond resin as a joining material, a Z-axis magnetic sensor is mounted onto a substrate having a wire formed on its principal surface. The Z-axis magnetic sensor having electrode pads formed on its bottom surface is tilted by 90 degrees and mounted onto the substrate. Therefore, the electrode pads are positioned at a side surface thereof. A joining material accommodation area which the die-bond resin can fill is provided at the surface of the Z-axis magnetic sensor opposing the principal surface of the substrate. This joining material accommodation area has a grooved structure. At the surface of the Z-axis magnetic sensor opposing the principal surface of the substrate, the grooved structure is provided at an end portion near the wire formed on the substrate. | 06-10-2010 |
| 20100182002 | MAGNETIC SENSOR DEVICE WITH FIELD GENERATOR AND SENSOR ELEMENT - The invention relates to a magnetic sensor device ( | 07-22-2010 |
| 20100188077 | APPARATUS FOR CHARACTERIZING A MAGNETIC FIELD IN A MAGNETICALLY ENHANCED SUBSTRATE PROCESSING SYSTEM - Embodiments of sensor devices for characterizing magnetic fields formed in substrate processing systems and methods of use thereof are provided herein. In some embodiments, an apparatus for characterizing a magnetic field in a substrate processing system may include a carrier having a form substantially similar to a substrate to be processed in the substrate processing system. One or more magnetic sensors are disposed on the carrier for measuring a magnitude of a magnetic field formed in the processing system in an x-, y-, and z-direction. A microprocessor is coupled to the one or more magnetic sensors to sample data representative of the magnitude of the magnetic field in the x-, y-, and z-directions proximate a position of each sensor. A memory device is coupled to the microprocessor for storing the sampled data. A power source is provided to supply power to each magnetic sensor and the microprocessor. | 07-29-2010 |
| 20100219819 | APPARATUS AND METHOD OF OBTAINING FIELD BY MEASUREMENT - Above the sample ( | 09-02-2010 |
| 20100225311 | METHOD OF CHARACTERIZING A POLYCRYSTALLINE DIAMOND ELEMENT BY AT LEAST ONE MAGNETIC MEASUREMENT - In an embodiment, a method of characterizing a polycrystalline diamond element is disclosed. The method includes providing the polycrystalline diamond element, and measuring at least one magnetic characteristic of the polycrystalline diamond element. | 09-09-2010 |
| 20100231211 | MAGNETIC SENSOR METHOD AND APPARATUS - A magnetic field sensing device comprising at least one magnetic sensor attached to a base structure, rotating member; and at least one flux concentrator mounted on the rotating member; whereby as the rotating member turns, the at least one flux concentrator shields the magnetic sensor so as to modulate the output of the at least one magnetic sensor. A second embodiment comprises a rotating member that rotates about an axis with at least one flux concentrator positioned thereon having a longitudinal axis in the radial direction of the rotating member; and at least one vector-type magnetic sensor fixedly mounted in the near proximity to the axis of the rotating member such that the magnetic field detected is modulated due to the rotation of the rotating member. Optionally, at least one fixed flux concentrator may be positioned along the periphery of the rotating member so as to increase magnetic flux input. | 09-16-2010 |
| 20100244819 | MEMS GYROSCOPE MAGNETIC SENSITIVITY REDUCTION - A tuning fork gyroscope that is insensitive to magnetic field gradients is provided. The tuning fork gyroscope includes a first electrically conducting proof mass and a second electrically conducting proof mass connected through electrically conducting suspensions to anchors attached to one or more insulating substrates, and an electrical-resistance mid-point electrically connected to opposing ends of the first electrically conducting proof mass and to opposing ends of the second electrically conducting proof mass. The tuning fork gyroscope provides an input to a sense charge amplifier. The sense charge amplifier generates an output signal indicative of a rotation of the tuning fork gyroscope. The output signal is independent of a magnetic field gradient. | 09-30-2010 |
| 20100259254 | SENSOR DEVICE FOR TARGET PARTICLES IN A SAMPLE - The invention relates to a sensor device ( | 10-14-2010 |
| 20100259255 | ASSEMBLING STRUCTURE OF CURRENT DETECTION APPARATUS - An assembling structure of a current detection apparatus includes: a bus bar; a sensor main body having a magnetism detection element which detects a magnetism generated from the bus bar; a housing having a sensor compartment which accommodates the sensor main body; a magnetism shield member mounted externally on the housing; a cover that holds the bus bar and the magnetism shield member by the at least part of the upper surface of the cover and the lower surface of the housing therebetween; a projecting portion formed on the cover, which projects upwards from the upper surface of the cover; a hole formed in the bus bar, through which the projecting portion of the cover is inserted; and a hole formed in the lower surface of the housing, which is adapted to fit on the projecting portion which passes through the hole in the bus bar. | 10-14-2010 |
| 20100271015 | MAGNETIC FIELD SENSOR ELEMENT - A sensor unit with at least one magnetic field sensor element, at least one application specific integrated circuit (ASIC) and at least one magnet are arranged in a capsule housing on at least one leadframe. The capsule housing is surrounded by a sensor encapsulation and is intended to have smaller dimensions so as to allow it to be positioned in the encapsulating mold with less effort and at the same time in the exact position. For this purpose, it is provided that the capsule housing has a number of fixing aids adapted in their outer dimensions to an injection mold assigned to the sensor encapsulation. | 10-28-2010 |
| 20100277164 | Method and apparatus for signal recovery - Method and system for detecting magnetic contaminants in products ( | 11-04-2010 |
| 20100283456 | MAGNETIC DETECTION OF BACK-SIDE LAYER - The invention relates to an integrated circuit comprising a substrate having a first side and a second opposing side. An electronic circuit (EC) is provided at the first side (S | 11-11-2010 |
| 20100295546 | GRADIENT SENSOR OF A COMPONENT OF A MAGNETIC FIELD WITH PERMANENT MAGNET - A gradient sensor of a component of a magnetic field comprising at least one elementary sensor comprising a deformable mass ( | 11-25-2010 |
| 20100321013 | Magnetic-field analyzing apparatus and magnetic-field analyzing program - A first equation is created, using the physical property data of a user-specified target to be analyzed, to calculate a first magnetic field due to a current vector in the target to be analyzed in such a manner that a finite element method and a boundary integral method are applicable to the first equation. A second equation is created, using the physical property data of the user-specified target to be analyzed, to calculate a second magnetic field due to a magnetization vector in the target to be analyzed in such a manner that the finite element method and the boundary integral method are applicable to the second equation. A first magnetic field and a second magnetic field are calculated using the first equation and the second equation, respectively. The sum of the first magnetic field and the second magnetic field is set to the magnetic field of the target. | 12-23-2010 |
| 20110001473 | ELECTROMAGNETIC WAVE DETECTION METHODS AND APPARATUS - Methods and apparatus for detecting an electromagnetic wave are provided. A device for use in an electromagnetic wave detector includes a first device layer having a first contact, a second device layer having a second contact, and a tunnel barrier layer and a resonating magnetic layer formed between the first and second device layers. The resonating magnetic layer produces a spin current responsive to an electromagnetic wave that extends into the first and second device layers. A charge differential present between the first and second contacts is dependent on the spin current. | 01-06-2011 |
| 20110018531 | Magnetic Sensor and Method for Manufacturing Magnetic Sensor - A method for manufacturing a magnetic sensor. The method includes forming a plurality of magnetic detection elements on a substrate to form a bridge circuit, forming a protective film that protects the magnetic detection elements on the substrate, forming a plurality of stress absorption grooves near each of the magnetic detection elements by etching the protective film to produce a multilayer substrate including the protective film, the stress absorption grooves, and the magnetic detection elements, packaging the multilayer substrate, and annealing the multilayer substrate prior to the packaging. | 01-27-2011 |
| 20110037463 | SPINTRONIC MAGNETIC NANOPARTICLE SENSORS WITH AN ACTIVE AREA LOCATED ON A MAGNETIC DOMAIN WALL - A sensor is described for detecting the presence of a magnetic nanoparticle (N). The sensor is arranged on a support ( | 02-17-2011 |
| 20110043200 | Current sensing device and manufacturing method of the same - A current sensing device and a manufacturing method of the same are disclosed. The current sensing device includes: a core having a gap; and a magnetic sensor inserted in the gap. The core includes a first core member and a second core member each made of a grain-oriented magnetic steel sheet having a magnetization easy axis. The first and second core members are stacked into a multiple layer structure so that a direction of the magnetization easy axis of the first core member and that of the second core member are perpendicular to each other. The first core member has a first trap part. The second core member has a second trap part. | 02-24-2011 |
| 20110050214 | SYSTEM AND METHOD FOR MEASURING MAGNETIC FIELD STRENGTH USING A MECHANICAL RESONATOR - Methods and apparatus for measuring magnetic field are provided. A resonator having a resonant frequency is that varies as a function of magnetic field is driven with a drive signal, and produces an output that is converted to electrical form. This output is then processed to isolate interference components due to the drive signal and to produce a sense signal. The sense signal is the processed to produce the drive signal. The sense signal is also processed to produce an output representative of the magnetic field. | 03-03-2011 |
| 20110050215 | SYSTEM FOR APPLYING MAGNETIC FORCES TO A BIOSENSOR SURFACE BY MECHANICALLY MOVING AT LEAST ONE MAGNET - A magnetic system for biosensors or a biosystem, wherein magnetic particles that interact with molecules are brought into a magnetic field, in order to be influenced via magnetic attraction or repulsion forces. The external magnetic field is varied by mechanically moving the magnetic poles of at least one magnetic relative to the sensor or at least its surface to allow the magnetic force to be switched between effective attraction towards the sensor surface and effective repulsion away from the sensor surface. | 03-03-2011 |
| 20110050216 | Method And System For Limiting Interference In Magnetometer Fields - Magnetometer systems, and associated methods, are provided including a first magnetometer adapted to generate an external magnetic field having a characteristic that is varied over time, and a second magnetometer adapted to receive the magnetic field and generate at least one magnetometer signal representing a change in the magnetic field. In one embodiment, the magnetic field characteristic includes the frequency of the generated magnetic field. In another embodiment, the magnetic field characteristic includes the frequency period of the magnetic field. | 03-03-2011 |
| 20110050217 | MAGNETIC FLUX DETECTION APPARATUS - A magnetic flux detection apparatus and a system with the magnetic flux detection apparatus are provided. The magnetic flux detection apparatus includes the magnetic material, at least one heated or cooled magneto caloric effect material (MCEM), a permanent magnetic element, at least one magnetic sensing element, and at least one amount of magnetic flux or magnetic flux path. The heated or cooled magneto caloric effect material is disposed to the magnetic material. The amount of magnetic flux or magnetic flux path is formed and passing through the permanent magnetic element, the cooled magneto caloric effect material, and the first portion of the magnetic material. A magnetic sensing element senses the amount of the magnetic flux or the magnetic flux path for outputting a sensing voltage and a corresponding sensing voltage value so as to apply the best thermal energy-applying algorithm into the magnetic system to output power efficiently. | 03-03-2011 |
| 20110074402 | MAGNETIC SENSOR MODULE - In a magnetic sensor module, using die-bond resin as a joining material, a Z-axis magnetic sensor is mounted onto a substrate having a wire formed on its principal surface. The Z-axis magnetic sensor having electrode pads formed on its bottom surface is tilted by 90 degrees and mounted onto the substrate. Therefore, the electrode pads are positioned at a side surface thereof. A joining material accommodation area which the die-bond resin can fill is provided at the surface of the Z-axis magnetic sensor opposing the principal surface of the substrate. This joining material accommodation area has a grooved structure. At the surface of the Z-axis magnetic sensor opposing the principal surface of the substrate, the grooved structure is provided at an end portion near the wire formed on the substrate. | 03-31-2011 |
| 20110080164 | MAGNETO-SENSITIVE WIRE, MAGNETO-IMPEDANCE ELEMENT AND MAGNETO-IMPEDANCE SENSOR - The magneto-sensitive wire of the invention has a vortex-spin structure and hence includes no magnetic domain walls, so that the magneto-sensitive wire of the invention has an excellent hysteresis characteristic exhibiting nearly zero hysteresis. Therefore, the linearity related to the output voltage characteristic for the applied magnetic field in the determination range of an MI sensor is significantly improved as compared to MI sensors using the conventional magneto-sensitive wires. Using the magneto-sensitive wire of the invention makes it possible to provide a magneto-impedance (MI) element exhibiting a higher precision than the conventional ones and further provide a sensor using such an MI element. | 04-07-2011 |
| 20110084692 | Magnetic-disturber detection method and detector, object-localizing method and system, recording medium for these methods - This method for detecting a magnetic disturber method comprises:
| 04-14-2011 |
| 20110089939 | MEDIUM DISCRIMINATION APPARATUS AND DISCRIMINATION METHOD THEREOF - Disclosed are a medium discrimination apparatus and a discrimination method thereof. If a paper money is introduced through a paper money inlet, first and second magnetic sensors | 04-21-2011 |
| 20110095754 | METHOD FOR MAKING A MAGNETIC FIELD SENSOR AND MAGNETIC FIELD SENSOR THUS OBTAINED - A method for manufacturing a field sensor including a series of n probes, in which n>=3, each formed of a core of magnetic alloys associated with a coil. According to the invention, the method includes the steps of ensuring the deposit of cores of magnetic alloys onto a non-magnetic substrate, on at least part or the entirety of a surface corresponding to a series of n strips extending along axes (x, y, z) concurrent at an intersection and connected by an intersection region (z), before or after this deposit, cutting out the n strips in the substrate leaving them connected to the substrate by at least one attachment, assembling each strip with a coil, and folding at least one strip along a fold line perpendicular to the axis thereof. | 04-28-2011 |
| 20110101972 | Gradient Magnetometer Atom Interferometer - Measuring a magnetic gradient according to the present invention includes generating a beam of like atoms with magnetic sublevels, applying a first pulse of electro-magnetic radiation to the beam of atoms to create a coherent superposition of the magnetic sublevels in the atoms in which the superposition results in a plurality of beams following separate paths and in which at least two of the paths are arms of an interferometer, applying a second pulse of electromagnetic radiation to both beams of atoms a time T later with characteristics substantially similar to the first pulse and in which the product of the Rabi frequency and T now must equal π (versus π/2 in the first pulse), whereby the states of the atoms in the two arms of the interferometer are coherently interchanged and are redirected towards each other. The beams of atoms are then recombined by apply a third pulse of electromagnetic radiation a time T±Δt after the second pulse with characteristics substantially similar to the first pulse such that the paths form a closed loop. Then, a detecting pulse of light is used to detect the number of atoms in one magnetic sublevel versus another magnetic sublevel. | 05-05-2011 |
| 20110101973 | SENSOR SYSTEM AND METHOD - A sensing system includes a conductor with a current flow path therethrough configured such that a current flowing through the conductor establishes an inhomogeneous magnetic field. A first pair of sensors is situated a first location having a first sensitivity, a second pair of sensors is situated at a second location having a second sensitivity lower than the first sensitivity. The first and second pairs of sensors are configured to measure the inhomogeneous magnetic field at their respective locations. | 05-05-2011 |
| 20110140692 | Method for determining the sensitivity of an acceleration sensor or magnetic field sensor - A method for determining the sensitivity of a sensor provides the following steps: a) first and second deflection voltages are applied to first and second electrode systems of the sensor, respectively, and first and second electrostatic forces are exerted on an elastically suspended seismic mass of the sensor by the first and second electrode systems, respectively, and a restoring force is exerted on the mass as a result of the elasticity of the mass, and a force equilibrium is established among the first and second electrostatic forces and the restoring force, and the mass assumes a deflection position characteristic of the force equilibrium, and an output signal characteristic of the force equilibrium and of the deflection position is measured; and b) the sensitivity of the sensor is computed on the basis of the first and second deflection voltages. | 06-16-2011 |
| 20110140693 | INTEGRATED TRIAXIAL MAGNETOMETER OF SEMICONDUCTOR MATERIAL MANUFACTURED IN MEMS TECHNOLOGY - Two suspended masses are configured so as to be flowed by respective currents flowing in the magnetometer plane in mutually transversal directions and are capacitively coupled to lower electrodes. Mobile sensing electrodes are carried by the first suspended mass and are capacitively coupled to respective fixed sensing electrodes. The first suspended mass is configured so as to be mobile in a direction transversal to the plane in presence of a magnetic field having a component in a first horizontal direction. The second suspended mass is configured so as to be mobile in a direction transversal to the plane in presence of a magnetic field having a component in a second horizontal direction, and the first suspended mass is configured so as to be mobile in a direction parallel to the plane and transversal to the current flowing in the first suspended mass in presence of a magnetic field having a component in a vertical direction. | 06-16-2011 |
| 20110148407 | ASSEMBLY STRUCTURE OF CURRENT DETECTION DEVICE - An assembling structure is provided which is capable of greatly reducing the material cost, is easy-to-assemble, and can be made smaller. The sensor body is provided on a lower face with a protrusion, which comes into contact with an upper face of the busbar when the sensor body is mounted on the busbar. The busbar is provided with a through-hole passing through the busbar in a vertical direction. A leading end of the protrusion, which passes through the through-hole when the sensor body is mounted on the busbar, is heat-fused and adheres to the circumference of the through-hole. | 06-23-2011 |
| 20110156700 | SYSTEM AND METHOD FOR ASSESSING INTERFERENCE TO A SIGNAL CAUSED BY A MAGNETIC FIELD - The present invention is directed to a system and method for assessing interference to a signal caused by magnetic field. The system includes a magnetic field generator configured to generate a magnetic field. The system further includes a first magnetic field sensor configured to detect a magnetic field and to generate a first signal representative of the magnetic field detected thereby. The system still further includes a second magnetic field sensor. The second magnetic field sensor is configured to detect a magnetic field and to generate a second signal representative of the magnetic field detected by the second magnetic field sensor. The system yet still further includes a processor. The processor is configured to receive and process the second signal to determine whether said magnetic field detected by said second magnetic field sensor may cause distortion to said first signal, as well as the magnitude of such distortion. | 06-30-2011 |
| 20110156701 | ROTATING MAGNETIC FIELD FOR IMPROVED DETECTION IN CLUSTER ASSAYS - In a method of performing a cluster assay, a suspension ( | 06-30-2011 |
| 20110175603 | Method and Apparatus for Measuring Magnetic Fields - A new ultra-sensitive magnetometer is disclosed and described. The ultra-sensitive magnetometer relies on non-tunneling magneto-transport (MT) and control of MT in organic solid state devices. These organic devices can have different active components as magnetic and non-magnetic polymers and self-assembled monolayers (SAMs). Magnetic field sensors can include a pair of electrodes spaced apart from one another. An organic layer can be oriented between the pair of electrodes to form an organic solid state device, wherein at least one of the organic layer and electrodes is magnetic and when the organic layer is not magnetic the organic layer comprises a self assembled monolayer and the magnetic field sensor operates under non-tunneling magnetic spin transport. | 07-21-2011 |
| 20110199077 | FERROUS OBJECT DETECTOR - A three-dimensional magnetic field sensor is used as part of a vehicle detector to monitor plural parking spaces. The detector includes a controller which periodically samples the magnetic field and compares the present field to a prior field. When the difference exceeds a threshold, the change in the field is compared to previously recorded calibration changes to determine which calibration change the present change most closely resembles. The results are displayed to direct customers to vacant parking spaces or to identify spaces which are occupied but whose meters have expired. | 08-18-2011 |
| 20110204884 | MAGNETOMETER - A magnetometer which includes an elongate reactor in which a sample can be secured in a sample support zone and which is located within a magnetic field space of a magnetic field generator and one or more signal pickup coils. Movement generating means is provided for generating relative movement in a generally linear direction between the reactor and at least one of the magnetic field and pickup coil, preferably by moving the reactor in its length. The magnetometer is characterised in that the reactor is a metal tube having a length which permits its ends to remain external of the signal pickup device during the relative movement. | 08-25-2011 |
| 20110204885 | DETECTION OF THE STATE OF ELECTRICAL EQUIPMENT OF A VEHICLE - A method for detecting an on or off state of electrical equipment of a vehicle, wherein the amplitudes of the magnetic field measured in at least two directions are analyzed to isolate the respective contributions of the different pieces of electrical equipment and deduce their state. | 08-25-2011 |
| 20110204886 | MAGNETIC SENSOR, MAGNETIC DETECTOR, AND MAGNETIC HEAD - A magnetic sensor comprises a first ferromagnetic body, a second ferromagnetic body, a channel extending from the first ferromagnetic body to the second ferromagnetic body, a magnetic shield covering the channel, and an insulating film disposed between the channel and the magnetic shield, while the magnetic shield has a through-hole extending toward the channel. | 08-25-2011 |
| 20110221429 | CURRENT SENSOR - Disclosed is a current sensor including magnetic sensors disposed on a conductor having at least two separated current-carrying areas with different current magnitudes and detecting a magnetic field generated according to currents flowing through the conductor and a controller controlling outputs of the magnetic sensors, wherein the magnetic sensors are disposed in at least two respective areas having different current magnitudes and the controller switches outputs of the magnetic sensors. | 09-15-2011 |
| 20110221430 | CURRENT DETECTION DEVICE - A current detection device that detects a current flowing through a target bus bar based on a magnetic flux in the periphery of the target bus bar, the target bus bar being at least one of a plurality of bus bars arranged in parallel. An adjacent bus bar is configured by including a first extending section that is arranged on a first direction side on one side of an orthogonal direction with respect to a magnetic flux detection plane, and extends in a first extending direction parallel to a magnetic flux detection plane, and a second extending section that is bent at one end portion of the first extending section in the first extending direction toward the first direction side, and extends in a second extending direction that crosses the magnetic flux detection plane. A detection portion of the target bus bar overlaps with the first extending section. | 09-15-2011 |
| 20110227566 | METHODS FOR DETECTING AND IMAGING MAGNETIC METALLOPROTEINS - The invention provides a method for detecting and imaging magnetic metalloproteins. A substrate is provided. A plurality of magnetic metalloproteins are formed on the substrate. The magnetic metalloproteins are detected and imaged by magnetic force microscopy (MFM) to obtain topographic images, phase images and MFM images of the magnetic metalloproteins. | 09-22-2011 |
| 20110227567 | Sensor Arrangement and Method for Operating a Sensor Arrangement - A sensor arrangement comprises a first, a second and a third magnetic field sensor that are arranged along a curved principal direction. A first combination means is connected to the first and second magnetic field sensors and a first channel signal can be derived from the signals of the first and second magnetic field sensors by the first combination means. A second combination means is connected to the first, second and third magnetic field sensors (SM | 09-22-2011 |
| 20110234215 | Sensor Package and Method for Producing a Sensor Package - Some embodiments herein relate to a sensor package. The sensor package includes a printed circuit board with a laminar current conductor arranged on a first main surface of the printed circuit board. The sensor package also includes a sensor chip adapted to measure a current flowing through the laminar current conductor, wherein the sensor chip comprises a magnetic field sensor. The sensor chip is electrically insulated from the current conductor by the printed circuit board, and is arranged on a second main surface of the printed circuit board opposite to the first main surface. The sensor chip is hermetically sealed between the mold material and the printed circuit board, or is arranged in the printed circuit board and hermetically sealed by the printed circuit board. | 09-29-2011 |
| 20110234216 | SPIN WAVE ELEMENT - A spin wave element includes a substrate, a multilayer, a detecting portion, and two or more input portions. The multilayer having a lamination direction thereof is formed on the substrate and includes a first ferromagnetic layer. The first ferromagnetic layer has magnetization whose direction is in the lamination direction. The detecting portion and the input portions are formed on the multilayer and separated from each other by a first nonmagnetic layer. In addition, a portion of an outer edge of the multilayer viewed from the lamination direction makes a portion of one ellipsoid. The detecting portion and one of the input portions are located on the long axis of the one ellipsoid. The portion of the one ellipsoid is located on a side of one of the input portions. | 09-29-2011 |
| 20110234217 | ARRANGEMENT WITH VARIABLE SELECTION FIELD ORIENTATION FOR MAGNETIC PARTICLE IMAGING - The present invention relates to an arrangement ( | 09-29-2011 |
| 20110241662 | MAGNETIC SENSOR DEVICE - Provided is a magnetic sensor device capable of suppressing a variation in determination for detection or canceling of a magnetic field intensity, which is caused by noise generated from respective constituent elements included in the magnetic sensor device and external noise, to thereby achieve high-precision magnetic reading. The magnetic sensor device includes: a first D-type flip-flop and a second D-type flip-flop each having an input terminal connected to an output terminal of a comparator; an XOR circuit having a first input terminal and a second input terminal which are connected to an output terminal of the first D-type flip-flop and an output terminal of the second D-type flip-flop, respectively; a selector circuit; and a third D-type flip-flop having an input terminal connected to an output terminal of the selector circuit. The selector circuit includes: a first input terminal (A) and a second input terminal (B) which are connected to the output terminal of the second D-type flip-flop and an output terminal of the third D-type flip-flop, respectively; and a select terminal connected to an output terminal of the XOR circuit. The selector circuit selectively outputs input signals from the first input terminal (A) and the second input terminal (B), according to an output of the XOR circuit. | 10-06-2011 |
| 20110241663 | ARRANGEMENT AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES - The present invention relates to an arrangement ( | 10-06-2011 |
| 20110248709 | Magnetic Pole Detection System and Magnetic Pole Detection Method - A magnetic sensor array including a plurality of magnetic sensors detects a phase regarding a magnetic pole of a magnetic pole array including magnetic poles of N and S arranged alternately. A pitch identification unit detects a pitch number of the magnetic pole currently being detected by the magnetic sensor array, in the magnetic pole array. | 10-13-2011 |
| 20110260722 | METHOD FOR CAPTURING A CONTAINER OF PLANET-GROUND SAMPLES TRAVELING IN OPEN SPACE - A method for capturing a container of planet ground samples moving in space by a probe also moving in space includes, when the probe is on the orbit of the container, at a distance of a few meters therefrom and the receiving face of the probe is oriented toward the container, generating, on board the probe, a first controlled magnetic field to reduce the angular speeds of the container and orient it in a preferred direction for the capture, and, when these speeds have become negligible and the probe is positioned in the correct orientation, while the probe is being brought closer to the container, a process of attraction of the container relative to the probe is begun using another field whose field lines converge toward the capture zone of the probe. | 10-27-2011 |
| 20110267048 | MAGNETICALLY SENSITIVE DEVICES - Methods and apparatus pertaining to magnetically sensitive devices are provided. A device includes a graphite containing-material (GCM) supported in contact with respective pairs of electrodes. The GCM is subject to a magnetic field. Various levels of electric current are driven through the GCM, while corresponding voltage measurements are taken. Resulting current-versus-voltage data pairs are compared to calibration data for the device. Magnetic field intensities, operating states of the device or other determinations can be made according to the comparison. | 11-03-2011 |
| 20110273171 | METHOD AND DEVICE FOR DETERMINING WHETHER THERE IS A CHANGE IN A SUBSTRATE BENEATH A LAYER COVERING THE SUBSTRATE - The invention relates to a method for determining whether there is a change in a substrate ( | 11-10-2011 |
| 20110273172 | Sensor Arrangement and Method for Operating a Sensor Arrangement - A sensor arrangement comprises at least a first magnetic-field sensor (SM | 11-10-2011 |
| 20110273173 | Sensor Arrangement and Method for Operating a Sensor Arrangement - A sensor arrangement comprises at least one magnetic-field sensor (SM | 11-10-2011 |
| 20110279113 | Apparatus and Method for In-field Magnetic Measurements - A magnetic field verifier apparatus includes a magnetic field detection element configured to produce a voltage signal in response to an applied magnetic field wherein the voltage signal corresponds to the strength of the applied magnetic field. Substantially identical circuit boards or units are connected to a central unit or mother board to place magnetic field detection elements of each board or unit in an mutually approximately orthogonal relationship. A microcontroller is in communication with the voltage signal. The magnetic field verifier apparatus is configurable to sense particular field strengths at various frequencies and store the readings to provide the user with a reliable verification that a particular magnetic field strength has been produced in a particular environment. | 11-17-2011 |
| 20110285389 | METHOD AND APPARATUS FOR SENSING A MAGNETIC FIELD - A magnetic screening system uses directional gradiometers with high resolution and accuracy to measure magnetic field signatures of target objects (e.g., gun, knife, cell phone, keys) in a volume of interest. The measured signatures can be compared to signatures of known objects stored in a local database. Various mathematical processes may be used to identify or classify target object signatures. In a network of magnetic screening systems, the magnetic screening systems can transmit signatures to a central signature database, and a management computer can share the central signature database with all of the magnetic screening systems on the network. The magnetic screening system can operate in multiple modes, such as a tracking mode, measurement mode, and self-test mode. Through use of unique processes and designs, the magnetic screening system can achieve a high rate of processing persons for target objects. | 11-24-2011 |
| 20110285390 | METHOD AND APPARATUS FOR OPERATING AN ARRANGEMENT OF GRADIOMETERS - A magnetic screening system uses directional gradiometers with high resolution and accuracy to measure magnetic field signatures of target objects (e.g., gun, knife, cell phone, keys) in a volume of interest. The measured signatures can be compared to signatures of known objects stored in a local database. Various mathematical processes may be used to identify or classify target object signatures. In a network of magnetic screening systems, the magnetic screening systems can transmit signatures to a central signature database, and a management computer can share the central signature database with all of the magnetic screening systems on the network. The magnetic screening system can operate in multiple modes, such as a tracking mode, measurement mode, and self-test mode. Through use of unique processes and designs, the magnetic screening system can achieve a high rate of processing persons for target objects. | 11-24-2011 |
| 20110285391 | Ball Having Magnetic Field Sensor and Measuring Method | 11-24-2011 |
| 20110291649 | MAGNETO-IMPEDANCE SENSOR ELEMENT AND METHOD FOR MANUFACTURING THE SAME - A magneto-impedance sensor element is formed in a planar type structure in which an amorphous wire is incorporated in a substrate. The magneto-impedance sensor element includes a nonmagnetic substrate, an amorphous wire arranged in an aligning direction of a planar pattern that forms a detecting coil, a spiral detecting coil formed of a planar pattern and a cubic pattern on an outer periphery of the amorphous wire, a planar insulating portion that insulates the planar pattern from the amorphous wire, a wire fixing portion to fix the amorphous wire on an upper surface of the planar insulating portion, and a cubic insulating portion that insulates the cubic pattern from the amorphous wire. | 12-01-2011 |
| 20110316531 | DEVICE FOR MEASURING THE DIRECTION AND/OR STRENGTH OF A MAGNETIC FIELD - A device for measuring the direction and/or strength of a magnetic field is described which includes a first sensor for detecting a first component of the magnetic field in a first spatial direction, a second sensor for detecting a second component of the magnetic field in a second spatial direction, and a third sensor for detecting a third component of the magnetic field in a third spatial direction, the first sensor containing at least one Hall sensor and the second and/or third sensors containing at least one fluxgate sensor. | 12-29-2011 |
| 20110316532 | Screw and method to identify the screw - A screw has a head whose underside has impressions or embossings and faces towards the tip. The underside is divided into at least five sectors of the same size. Three-fifths of the sectors exhibit an identical pattern of impressions or embossings and at least one sector is provided with a different pattern of impressions or embossings or else with no impressions or embossings. | 12-29-2011 |
| 20120007597 | MICROMACHINED OFFSET REDUCTION STRUCTURES FOR MAGNETIC FIELD SENSING - A micromachined magnetic field sensor integrated with electronics is disclosed. The magnetic field sensors utilize Hall-effect sensing mechanisms to achieve 3-axis sensing. A Z axis sensor can be fabricated either on a device layer or on a conventional IC substrate with the design of conventional horizontal Hall plates. An X and Y axis sensor are constructed on the device layer. In some embodiments, a magnetic flux concentrator is applied to enhance the performance of the magnetic field sensor. In some embodiments, the magnetic field sensors are placed on slope sidewalls to achieve 3-axis magnetic sensing system. In some embodiments, a stress isolation structure is incorporated to lower the sensor offset. The conventional IC substrate and device layer are connected electrically to form a 3-axis magnetic sensing system. The magnetic field sensor can also be integrated with motion sensors that are constructed in the similar technology. | 01-12-2012 |
| 20120013331 | Method for Producing a Current Metering Device - A method for producing a current metering device with current conductor optionally made of aluminum or aluminum alloy, which has a middle section in the form of a bar and two end sections with flattened areas, and is bent between one end section at a time and the middle section, a magnetic module which has a bushing which holds the current conductor, and two copper or copper alloy sleeves which are applied at least to parts of the end sections of the current conductor. | 01-19-2012 |
| 20120013332 | MAGNETIC DETECTION DEVICE - A magnetic detection device of the present invention includes at least one pair of first magnetosensitive bodies each comprising a soft magnetic material extending in a first axis direction and being sensitive to an external magnetic field oriented in the first axis direction; and a magnetic field direction changer comprising a soft magnetic material and changing an external magnetic field oriented in a different axis direction from the first axis direction into a measurement magnetic field having a component in the first axis direction which can be detected by the at least one pair of first magnetosensitive bodies. With this magnetic detection device, the external magnetic field oriented in the different axis direction can be detected by way of the first magnetosensitive bodies. As a result, while attaining magnetic detection with high accuracy, the magnetic detection device can be reduced in size or thickness by omitting a magnetosensitive body extending long in the different axis direction. | 01-19-2012 |
| 20120013333 | Magnetic Field Sensors and Methods for Fabricating the Magnetic Field Sensors - Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator. | 01-19-2012 |
| 20120019240 | DEVICE, INSTRUMENT AND PROCESS FOR DETECTING MAGNETICALLY LABELED ANALYTES - The present invention is directed to a device for quantitative analysis of an analyte in a liquid sample by detecting a magnetic label, an instrument for controlling the analysis process and displaying the results and a method for performing said analysis with said device and said instrument. | 01-26-2012 |
| 20120019241 | MAGNETIC FIELD SENSOR DEVICE, CORRESPONDING PRODUCTION METHOD, AND MAGNETIC FIELD MEASURING METHOD - A magnetic field sensor device and a corresponding production method are described. The magnetic field sensor device includes a substrate, which has a trench, a ferromagnetic nanowire formed in the trench, a first electrical connection for the electrical connection of a first end of the ferromagnetic nanowire, a second electrical connection for the electrical connection of a second end of the ferromagnetic nanowire, and a magnetic field detection device for detecting a magnetic field in the region of the nanowire. | 01-26-2012 |
| 20120038355 | MAGNETIC SENSOR AND MAGNETIC DETECTION APPARATUS - A magnetic sensor is provided with a channel of a semiconductor, a first insulating film and a metal body arranged opposite to each other with the channel in between, a ferromagnet provided on the first insulating film, a first reference electrode connected to the metal body, a second reference electrode connected to the metal body, a magnetic shield covering a portion opposed to the ferromagnet in the channel, and a second insulating film provided between the channel and the magnetic shield. The magnetic shield has a through hole extending toward the portion opposed to the ferromagnet in the channel. | 02-16-2012 |
| 20120062220 | AGGREGATED SPIN-TORQUE NANO-OSCILLATORS - A nano-oscillator magnetic wave propagation system has a group of aggregated spin-torque nano-oscillators (ASTNOs), which share a magnetic propagation material. Each of the group of ASTNOs is disposed about an emanating point in the magnetic propagation material. During a non-wave propagation state of the nano-oscillator magnetic wave propagation system, the magnetic propagation material receives a polarizing magnetic field. During a wave propagation state of the nano-oscillator magnetic wave propagation system, each of the group of ASTNOs initiates spin waves through the magnetic propagation material, such that a portion of the spin waves initiated from each of the group of ASTNOs combine to produce an aggregation of spin waves emanating from the emanating point. The aggregation of spin waves may provide a sharper wave front than wave fronts of the individual spin waves initiated from each of the group of ASTNOs. | 03-15-2012 |
| 20120062221 | METHOD OF CALIBRATING AN ATOMIC-FUNCTIONING APPARATUS - This method makes it possible to carry out the auto-calibration of the electromagnetic coils ( | 03-15-2012 |
| 20120074933 | MAGNETOELASTIC TORQUE SENSOR WITH AMBIENT FIELD REJECTION - The present invention involves a method and apparatus for canceling the effects of magnetic field noise in a torque sensor by placing three sets of magnetic field sensors around a shaft, the first set of field sensors being placed in the central region of the shaft and the second and third sets of field sensors being placed on the right side and left side of the field sensors placed at the central region, respectively. A torque-induced magnetic field is not cancelled with this arrangement of field sensors but a magnetic near field from a near field source is cancelled. | 03-29-2012 |
| 20120126804 | APPARATUS AND METHOD FOR DETECTING FAULTY CONCENTRIC NEUTRALS IN A LIVE POWER DISTRIBUTION CABLE - An apparatus for detecting a faulty concentric neutral wire in a live power distribution cable may include, in one embodiment, a housing for sliding along a surface of a power distribution cable, a magnetic sensor, and a motion device. The magnetic sensor may be coupled to the housing and configured to detect a magnetic field produced by each concentric neutral wire as the housing moves along the surface of the cable. The motion device may also be coupled to the housing, and may detect motion of the housing relative to the cable. In some embodiments, a communication device may communicate data describing the magnetic field and motion to a destination device. | 05-24-2012 |
| 20120169327 | SYSTEM AND METHOD FOR USING MAGNETOMETER READINGS TO CONTROL ELECTRONIC DEVICES - A method and system are provided for controlling an electronic device, such as a mobile device. The method comprises using a magnetometer of the electronic device to obtain a reading; determining whether one or more properties of the reading matches at least one magnetic signature from a set of magnetic signatures, each magnetic signature being indicative of an expected magnetic influence from another object; if the one or more properties match a particular magnetic signature from the set of magnetic signatures, determining one or more actions associated with the particular magnetic signature; and enabling the one or more actions to be performed using the electronic device. | 07-05-2012 |
| 20120176128 | MICROMACHINED RESONANT MAGNETIC FIELD SENSORS - A micromachined magnetic field sensor comprising is disclosed. The micromachined magnetic field comprises a substrate; a drive subsystem, the drive subsystem comprises a plurality of beams, and at least one anchor connected to the substrate; a mechanism for providing an electrical current through the drive subsystem along a first axis; and Lorentz force acting on the drive subsystem along a second axis in response to a magnetic field along a third axis. The micromachined magnetic field sensor also includes a sense subsystem, the sense subsystem comprises a plurality of beams, and at least one anchor connected to the substrate; wherein a portion of the sense subsystem moves along a fourth axis; a coupling spring between the drive subsystem and the sense subsystem which causes motion of the sense subsystem in response to the magnetic field; and a position transducer to detect the motion of the sense subsystem. | 07-12-2012 |
| 20120182010 | MAGNETIC FIELD SENSOR - A magnetic field sensor for measuring a magnetic field at a sensor location has a printed circuit board, including electrically insulating material; a magnetic field sensor element situated on the printed circuit board and connected via electrical contacts to first printed conductors provided on the printed circuit board; and at least one second printed conductor for generating a test magnetic field, the second printed conductor being provided on the printed circuit board and generating a predetermined test magnetic field when a calibration current is applied at the sensor location. | 07-19-2012 |
| 20120187943 | CURRENT DIFFERENCE SENSORS, SYSTEMS AND METHODS - Embodiments relate to current difference sensors, systems and methods. In an embodiment, a current difference sensor includes first and second conductors arranged relative to one another such that when a first current flows through the first conductor and a second current, equal to the first current, flows through the second conductor, a first magnetic field induced in the first conductor and a second magnetic field induced in the second conductor cancel each other at a first position and a second position; and first and second magnetic field sensing elements arranged at the first and second positions, respectively. | 07-26-2012 |
| 20120187944 | PLANAR MAGNETIC FIELD PROBE - A planar magnetic field probe is provided. The planar magnetic field probe increases the sensitivity of magnetic field intensity detection by using a left multi-sensor loop and a right multi-sensor loop formed by a first patterned metal layer and a second patterned metal layer, and decreases the electric field noise coupling by surrounding the left multi-sensor loop and the right multi-sensor loop with a symmetrical shielding metal structure formed by a first patterned shielding metal layer, a second patterned shielding metal layer and a plurality of through vias. | 07-26-2012 |
| 20120187945 | NON-CONTACT CURRENT SENSOR - A non-contact current censor includes a spin valve structure ( | 07-26-2012 |
| 20120206134 | MEMS OSCILLATING MAGNETIC SENSOR AND METHOD OF MAKING - A microelectromechanical system (MEMS) device for sensing a magnetic field comprising: a base; a cantilever attached to the base structure at a first end and movable at a second end, the second end oscillating at a predetermined frequency upon application of a current; a magnetic sensor attached to the movable second end; at least one flux concentrator mounted on the base adapted to transfer magnetic flux to the sensor; whereby when the current is applied, the oscillation of the cantilever causes the sensor to oscillate between the lines of flux transferred from the at least one flux concentrator resulting in the shift of the frequency of the sensed magnetic field to the predetermined frequency. The invention further comprises a method of making the MEMS device. | 08-16-2012 |
| 20120217958 | PORTABLE ELECTRONIC DEVICE ADAPTED TO COMPENSATE FOR GYROSCOPE BIAS - According to one aspect, there is provided a method for compensating for gyroscope bias on a portable electronic device having a gyroscope, and at least one of an accelerometer and a magnetometer. The method includes determining a first attitude matrix and a second attitude matrix using data from the accelerometer and the magnetometer, determining a difference between the first attitude matrix and the second attitude matrix, estimating a rotational velocity based on the difference between the first attitude matrix and the second attitude matrix, and compensating for an output from the gyroscope to generate a compensated output that compensates for the gyroscope bias using the estimated rotational velocity. | 08-30-2012 |
| 20120217959 | ELECTRONIC CIRCUIT, INTEGRATED CIRCUIT, AND MAGNETIC FIELD DETECTION DEVICE AND ELECTRONIC DEVICE INCLUDING THE SAME - An electronic circuit for detecting magnetism includes: a detection unit in which at least three detection blocks including at least one magnetic field detection element are arranged, wherein by selecting first and second detection blocks from among the at least three detection blocks based on a detection target object, a distance between the first and second detection blocks becomes a distance suitable for the detected target object; a control unit configured to select the first and second detection blocks; and a switching unit configured to connect the selected first and second detection blocks to an output of the electronic circuit based on a control operation of the control unit. | 08-30-2012 |
| 20120223704 | MAGNETIC SENSOR - A magnetic sensor includes a magneto-electric transducer, a switch circuit, an amplifier circuit, a subtractor circuit, and a selector circuit. The subtractor circuit performs a first subtraction process of generating a first subtraction voltage by subtracting an amplification voltage obtained under an immediately prior first bias state from an amplification voltage obtained under a second bias state and a second subtraction process of generating a second subtraction voltage by subtracting an amplification voltage obtained under an immediately prior second bias state from an amplification voltage obtained under a first bias state in a serial and parallel manner. The selector circuit alternately selects the first subtraction voltage and the second subtraction voltage to output a select voltage. | 09-06-2012 |
| 20120229128 | Magnetic Field Sensor - Embodiments related to magnetic field sensors are described and depicted. | 09-13-2012 |
| 20120229129 | PROBE STATION WITH MAGNETIC MEASUREMENT CAPABILITIES - A system for probing with electrical test signals on an integrated circuit specimen in the external multidimensional magnetic field of controlled strength and orientation is provided by utilizing an assembly of cone-shaped electromagnets. In one form the system has an environmental enclosure and environmental control system for testing of an integrated circuit specimen at environmentally controlled conditions. The system of the present invention can be used for probing of electronic and spintronic devices. | 09-13-2012 |
| 20120249131 | SHEET IDENTIFYING APPARATUS, IMAGE READING SYSTEM, SHEET SHREDDING SYSTEM, NON-TRANSITORY COMPUTER-READABLE MEDIUM, AND SHEET IDENTIFYING METHOD - A sheet identifying apparatus includes: an excitation coil disposed upstream in a passage through which a sheet inserted into an input port passes and wound on an outer periphery of the passage; a first output unit that detects a magnetization variation of a magnetic element due to the excited excitation coil when the sheet having the magnetic element passes through a region of the passage where the excitation coil is disposed in a state where an AC current is applied to the excitation coil and that outputs a first detection signal when the magnetization variation is detected; and a second output unit that detects that the sheet passes through a region downstream in the passage on the basis of a characteristic of the sheet without using the magnetic element and that outputs a second detection signal when detecting that the sheet passes through the region. | 10-04-2012 |
| 20120249132 | MAGNETIC FIELD MEASUREMENT APPARATUS, MAGNETIC FIELD MEASUREMENT SYSTEM AND MAGNETIC FIELD MEASUREMENT METHOD - A magnetic field measurement apparatus includes a first gas cell disposed in a +z direction when seen from an object to be measured, a second gas cell disposed in the +z direction when seen from the first gas cell, a first measurement unit which measures a component of a magnetic field in the first gas cell, a second measurement unit which measures a component of a magnetic field in the second gas cell, a magnetic field generation unit which generates the magnetic field toward the second gas cell so as to reduce the component measured by the second measurement unit, and an output unit which outputs a signal in response to the difference in the components respectively measured by the first measurement unit and second measurement unit. | 10-04-2012 |
| 20120306484 | MAGNETIC DETECTION APPARATUS - A magnetic detection apparatus includes an IC device, a casing defining a housing space of the IC device, and a resin mold portion arranged on a first part of an outside surface of the casing. The IC device includes an IC package having a built-in magnetoelectric transducer, and lead wires. The housing space is defined by a second part of an inner wall of the casing. A predetermined portion of the second part of the inner wall is defined as a contact region, with which the IC device contacts. The resin mold portion is arranged other than a predetermined portion of a second part of the outside surface corresponding to the contact region. A position of the magnetoelectric transducer is determined by positions of the contact region and the resin mold portion. | 12-06-2012 |
| 20130002244 | MEMS-BASED MAGNETIC SENSOR WITH A LORENTZ FORCE ACTUATOR USED AS FORCE FEEDBACK - A magnetic sensor utilizes a MEMS device that has at least one vibrating member and at least one conductive path integral with the vibrating member so that a current flows along the vibrating member and in the presence of a magnetic field interaction of the magnetic field and the point charges in the current on the conductive path due to the Lorentz force causes a change in vibration of the vibrating member. That change can be used to provide a measure of the magnetic field. | 01-03-2013 |
| 20130009635 | Sensing a Field with a Sensor That Includes Bias Resetting of an Active Device of the Sensor - Apparatuses, methods and systems of sensor sampling of a field are disclosed. One apparatus includes a magnetometer that includes a sensor responsive to an applied field. Embodiments of the sensor include an active device and oscillator circuitry, wherein the sensor generates an output signal having a frequency that is dependent on the applied field. The magnetometer further includes a bias reset controller for resetting a bias of the active device and a sampler for sampling the output signal. Further, a reset-rate of the resetting of the bias of the active device is high enough to influence 1/f noise generated by the active device. | 01-10-2013 |
| 20130015850 | Die-Sized Atomic Magnetometer and Method of Forming the MagnetometerAANM Lindorfer; PhilippAACI San JoseAAST CAAACO USAAGP Lindorfer; Philipp San Jose CA USAANM Hopper; Peter J.AACI San JoseAAST CAAACO USAAGP Hopper; Peter J. San Jose CA USAANM French; WilliamAACI San JoseAAST CAAACO USAAGP French; William San Jose CA USAANM Mawson; PaulAACI Los GatosAAST CAAACO USAAGP Mawson; Paul Los Gatos CA USAANM Hunt; StevenAACI San JoseAAST CAAACO USAAGP Hunt; Steven San Jose CA USAANM Parsa; RoozbehAACI San JoseAAST CAAACO USAAGP Parsa; Roozbeh San Jose CA US - The cost and size of an atomic magnetometer are reduced by attaching together a first die which integrates together a vapor cell, top and side photo detectors, and processing electronics, a second die which integrates together an optics package and a heater for the vapor cell, and a third die which integrates together a VCSEL, a heater for the VCSEL, and control electronics. | 01-17-2013 |
| 20130015851 | Sensor with Concurrent Autosensing of Output Mode and Manual Selection - A switching sensor may automatically configure itself to a sinking or a sourcing mode by monitoring the voltage of its switched output to determine a loading configuration associated with each of these operating modes. The auto detection may occur not only at start up but also during operation of the sensor by monitoring the output voltage or current in coordination with knowledge about the intended state of the output by the sensor. A manual selection of the operating mode and override of the autodetect feature may be provided for cases when multiple sensors are connected in parallel. | 01-17-2013 |
| 20130015852 | MAGNETOMETER - The present invention refers to a magnetometer ( | 01-17-2013 |
| 20130038323 | MAGNETO-IMPEDANCE ELEMENT AND MAGNETO-IMPEDANCE SENOR INCLUDING DETECTION COIL. - A magneto-impedance element includes a magnetic sensitive member having a form of a line, whose electromagnetic characteristics vary depending on an external magnetic field, a pulse current flowing from one to another end portion thereof in an axial direction. A conductive layer is arranged on an insulating layer provided on an outer surface of the magnetic sensitive member. A connection portion, electrically connecting the magnetic sensitive member and the conductive layer, is arranged on the other end portion in the axial direction of the magnetic sensitive member. A detection coil, outputting an induced voltage corresponding to an intensity of an external magnetic field acting on the magnetic sensitive member when the pulse current flows in the magnetic sensitive member, is wounded around the conductive layer. A direction of the pulse currents flowing in the magnetic sensitive member and in the conductive layer are opposite each other. | 02-14-2013 |
| 20130057270 | GENERATOR OF A HOMOGENOUS MAGNETIC FIELD - A generator having at least four coils wound around each of the winding axes, these four coils being spaced out from one another to cancel at least the first derivative up to the seventh derivative of the magnetic field generated by these coils, in parallel to the winding axis, at a central point when they are powered by the same current, and the circumference of each coil is a circle, the diameter of this circle being equal within 2% of the diameter of a circle defined by the intersection between a sphere centered on the central point and a plane, perpendicular to the winding axis of this coil, passing through this coil, the sphere being the same for all the coils wound around the same winding axis. | 03-07-2013 |
| 20130063140 | MAGNETIC SENSOR AND CURRENT MEASURING APPARATUS - A magnetic sensor includes two sensor units with curved cores including meshing portions at front and base ends thereof and constructs a ring when the meshing portions mesh together. The meshing portions include main meshing portions that entirely overlap in a completely meshed state where the meshing portions overlap to the greatest extent. Auxiliary meshing portions that protrude inside and/or outside the ring are provided on the main meshing portions at the front and/or the base ends. In the completely meshed state, the auxiliary meshing portions do not overlap the main meshing portions or auxiliary meshing portions of the other core. In a non-completely meshed state where the main meshing portions partially do not overlap, the auxiliary meshing portions at least partially overlap the main meshing portions and/or auxiliary meshing portions of the other core. | 03-14-2013 |
| 20130063141 | APPARATUS AND METHOD FOR IDENTIFYING MAGNETICALLY MARKED MICRO OBJECTS - An apparatus is disclosed for identifying magnetically marked micro objects, in particular biological micro objects, preferably tumor cells. In at least one embodiment, the apparatus includes a carrier for at least one micro object; a device for applying a region with a magnetic gradient field, wherein the gradient field comprises at least one zero point; a device for applying the micro object with a high frequency magnetic field, in particular at the site of the zero point; a device for relative movement of the carrier and region to one another; a device for receiving a change in a magnetic flux through the micro object; a device for evaluating the received change in the magnetic flux and for identifying the position of the micro object; and a device for in particular automatically analyzing the micro object. | 03-14-2013 |
| 20130076350 | MAGNETIC SENSOR DEVICE - A magnetic sensor device for generating a logic output in accordance with a magnetic field intensity applied to a magnetoelectric conversion element includes: a comparator for inputting amplified output signals of the magnetoelectric conversion element, and outputting a comparison result; and a logic circuit for performing arithmetic processing on an output signal of the comparator. Only when the logic output is changed by a change in the magnetic field intensity, the logic circuit performs successive matching determination of logic outputs a plurality of times. Thus, the variation in determination for detection or canceling of a magnetic field intensity, which is caused by noise generated from respective constituent elements included in the magnetic sensor device and external noise, may be reduced while suppressing electric power consumption. | 03-28-2013 |
| 20130082696 | MAGNETIC BIAS STRUCTURE FOR MAGNETORESISTIVE SENSOR HAVING A SCISSOR STRUCTURE - A scissor style magnetic sensor having a novel hard bias structure for improved magnetic biasing robustness. The sensor includes a sensor stack that includes first and second magnetic layers separated by a non-magnetic layer such as an electrically insulating barrier layer or an electrically conductive spacer layer. The first and second magnetic layers have magnetizations that are antiparallel coupled, but that are canted in a direction that is neither parallel with nor perpendicular to the air bearing surface by a magnetic bias stricture. The magnetic bias structure includes a neck portion extending from the back edge of the sensor stack and having first and second sides that are aligned with first and second sides of the sensor stack. The bias structure also includes a tapered or wedged portion extending backward from the neck portion. | 04-04-2013 |
| 20130093418 | Magnetic Tampering Detection and Correction in a Utility Meter - An arrangement for use in an electricity meter includes a sensor and a processing circuit. The sensor is supported directly or indirectly by a meter housing. The sensor is configured to measure a magnetic field in proximity to a current sensor of the electricity meter. The sensor is also configured to generate a measurement signal representative of, at least in part, a magnitude of the magnetic field. The processing circuit is operably coupled to receive first information representative of the measurement signal. The processing circuit is configured to obtain a first value representative of the magnetic field based on the first information, and determine a first adjustment value responsive to a determination that the first value exceeds the first threshold value. The processing circuit is further configured to generate energy consumption information based at least in part on the first adjustment value. | 04-18-2013 |
| 20130113473 | MAGNETIC SENSOR WITH SHUNTING LAYERS AND MANUFACTURING METHOD THEREOF - The present invention directs a magnetic sensor with shunting layers, and the magnetic sensor includes a magnetic sensor bar which having an integral structure; and a plurality of shunting layers whose resistivity is lower than the magnetic sensor bar, respectively forming on the magnetic sensor bar in length direction without any physical separation therebetween, with spaces between every two adjacent shunting layers; and two electrode pads respectively forming on two ends of the magnetic sensor bar. The present invention also provides manufacturing method of the magnetic sensor. | 05-09-2013 |
| 20130113474 | Magnetic Sensor Device - A magnetic sensor device includes a magnet configured to generate a bias magnetic field. A plurality of electrical wires extend through the magnet. A magnetic sensor chip is attached to an end face of a first electrical wire of the plurality of electrical wires. | 05-09-2013 |
| 20130113475 | Magnetic Sensor Device and a Method for Fabricating the Same - A magnetic sensor device includes a plurality of electrical wires, a magnetic sensor chip, and a magnet. The magnet is formed from a material composition of a polymer and magnetic particles and attached to at least one of the electrical wires. | 05-09-2013 |
| 20130176021 | METHOD OF ESTIMATING THE RESIDUAL MAGNETIC FLUX OF TRANSFORMER AND RESIDUAL MAGNETIC FLUX ESTIMATION DEVICE - A residual magnetic flux estimation device | 07-11-2013 |
| 20130181703 | Sensor Package and Method for Producing a Sensor Package - Some embodiments herein relate to a sensor package. The sensor package includes a printed circuit board with a laminar current conductor arranged on a first main surface of the printed circuit board. The sensor package also includes a sensor chip adapted to measure a current flowing through the laminar current conductor, wherein the sensor chip comprises a magnetic field sensor. The sensor chip is electrically insulated from the current conductor by the printed circuit board, and is arranged on a second main surface of the printed circuit board opposite to the first main surface. The sensor chip is hermetically sealed between the mold material and the printed circuit board, or is arranged in the printed circuit board and hermetically sealed by the printed circuit board. | 07-18-2013 |
| 20130214772 | MAGNETIC SENSOR DEVICE - Provided is a magnetic sensor device, which is configured to connect each terminal of a Hall element to another end of a variable resistor having one end connected to GND by switching of four switches. Thus, a detection voltage level for a magnetic field intensity can be arbitrarily set with a small-scale circuit. The detection voltage level is determined only by the resistance ratio, and hence the influence of fluctuations in power supply voltage and manufacturing fluctuations can be suppressed. This configuration can simplify signal processing and achieve higher-speed signal processing. | 08-22-2013 |
| 20130249542 | FOLDABLE SUBSTRATE - A foldable substrate is provided that includes a first substrate portion with a first upper surface and a second substrate portion with a second upper surface. A foldable bridge portion couples the first substrate portion to the second substrate portion. The foldable bridge portion includes a coupling strip that extends from the first substrate portion to the second substrate portion with a gap corresponding to a portion of the coupling strip where the gap is defined between the first and second substrate portions by removing portions of a starting wafer substrate. The first and second portions, in one embodiment, include magnetic field sensors and the foldable bridge portion can be bent to arrange the two portions at a predetermined angle to one another. Once bent, the sensor package can be incorporated into a magnetic field sensor assembly to be integrated with other control circuitry. | 09-26-2013 |
| 20130300406 | METHODS AND APPARATUS FOR MAGNETIC SENSOR HAVING INTEGRATED COIL - Methods and apparatus for a magnetic field sensor including a die, a coil proximate the die to generate a magnetic field, and a magnetic field sensing element having to detect changes in the magnetic field generated by the coil in response to a ferromagnetic target. | 11-14-2013 |
| 20130300407 | Current Sensor - A current sensor includes a conductive element, and at least two magnetic field sensors arranged on the conductive element and configured to sense a magnetic field generated by a current through the conductive element, wherein the at least two magnetic field sensors are arranged on opposite sides of a line perpendicular to a current flow direction in the conductive element. The current sensor further includes an insulating layer arranged between the conductive element and the magnetic field sensors, and at least two conductor traces provided on the insulating layer, wherein one end of the conductor traces connects to a respective magnetic field sensor, and the other end of the conductor traces providing a terminal for outputting the sensor signals. The conductor traces are arranged such that they do not extend entirely around the conductive element. | 11-14-2013 |
| 20130307533 | SECURITY SYSTEM AND METHOD OF DETECTING CONTRABAND ITEMS - A method of detecting contraband about a person using a portable detector apparatus having an elongate housing that supports at least one magnetic sensor, which is arranged to produce a signal indicative of an ambient magnetic field or gradient over a zone of sensitivity which extends away from the housing, the size of the zone large enough to contain the whole body of the person, and a signal processing circuit that receives as an input the signal from the magnetic sensor and which, in response to a change in the signal, produces an alert signal includes setting up the portable detector apparatus in a chosen location, causing the person to pass alongside the housing from outside of the zone of sensitivity into the zone of sensitivity, and monitoring for the issue of an alert by the device which is indicative of the possible presence of contraband. | 11-21-2013 |
| 20130314083 | MIXED CURRENT SENSOR AND METHOD FOR FITTING SAID SENSOR - The invention relates to a mixed current sensor comprising in a case:
| 11-28-2013 |
| 20130320968 | CURRENT SENSOR - A current sensor is disclosed which detects current values of bus bars through which three phase alternating currents flow, including shields which are provided for each of the bus bars, a flat board on which magnetic detecting elements corresponding to respective phases are mounted, and a housing inside which the shields and the board are accommodated, wherein the housing is formed with storage parts to store the shield, the board is formed with concave parts recessed in a direction opposite to the direction the board is assembled, the shields are formed with cut parts recessed in the direction the board is assembled, at parts that intersect with the board when the shields and the board are accommodated, and when the shields and the board are accommodated, a part of the board is located in the cut parts, and a part of the shields is located in the concave parts. | 12-05-2013 |
| 20130335076 | CURRENT SENSOR - A current sensor to be provided in a current path through which current flows includes a housing, a substrate accommodated in the housing, a plurality of magnetic detection elements mounted on the substrate, and a pair of shields respectively disposed on both sides of each magnetic detection element. The shields are accommodated in the housing so as to surround the current path on both sides of the current path and the shields are held so that respective end portions of the shields have a predetermined interval. The magnetic detection elements and the shields are disposed in each phase current path for three-phase AC. | 12-19-2013 |
| 20140002073 | DEVICE FOR EVALUATING A MAGNETIC FIELD | 01-02-2014 |
| 20140009143 | Magnetic Transducer And Current Transducer For Measuring An Electrical Current - The invention concerns a magnetic transducer comprising a magnetic field sensor and an electronic circuit. The electronic circuit comprises at least one current source, a transformer, a fully differential preamplifier coupled to the transformer, a phase sensitive detector coupled to the preamplifier and a logic block configured to operate the magnetic field sensor(s) to provide an AC output voltage. The magnetic field sensor(s) is preferably either a Hall element or an AMR sensor or a fluxgate sensor. The invention further concerns a current transducer for measuring a current flowing through a cable, comprising at least one such magnetic transducer and a head with one or more ferromagnetic cores optimized to reduce the effects of external magnetic fields. | 01-09-2014 |
| 20140015523 | SENSOR DEVICE, A DETECTOR ARRANGEMENT AND A METHOD FOR DETECTING ARCING - Detecting arcing events in a DC driven semiconductor tool is a challenging process. Various embodiments comprise dedicated sensor devices capable of detecting arcing events by observing the slope of voltage and/or current of a DC power supply line. Using the incorporated interfaces, the sensor could be connected to a computer system. Besides the detector arrangement the unit also provides a method and a corresponding computer program product. Furthermore a simple detection, the unit has the capability of separating the events into its severeness. | 01-16-2014 |
| 20140028303 | DEVICE FOR MEASURING THE DIRECT COMPONENT OF ALTERNATING CURRENT - The invention relates to a device for measuring the direct component of alternating current, applicable in current measuring systems where a low direct component of alternating current and a high amplitude of the alternating component of alternating current occur. The device for measuring the direct component of alternating current comprises a current-carrying wire ( | 01-30-2014 |
| 20140049255 | CORELESS CURRENT SENSOR STRUCTURE, CORELESS CURRENT SENSOR, AND CURRENT DETECTION METHOD - In coreless current sensors of a coreless current sensor structure, and in a current detection method employed in the coreless current sensor structure, a coil-like portion that surrounds the outer circumference of a conductor, such as a shield plate, is formed of a connecting line connected to a terminal of a magnetic detection element. | 02-20-2014 |
| 20140070801 | CURRENT SENSOR - A current sensor includes a first conductor and a second conductor arranged so as to form current paths parallel to each other; a circuit board arranged such that a surface thereof is perpendicular to the current paths; and a first magnetoelectric transducer and a second magnetoelectric transducer arranged on the surface of the circuit board such that the first conductor is interposed therebetween. The first conductor, the second conductor, the first magnetoelectric transducer, and the second magnetoelectric transducer are located on a same plane. | 03-13-2014 |
| 20140077796 | APPARATUS AND METHOD FOR MEASURING MAGNETIC FIELDS - An apparatus for measuring a magnetic field is described, which comprises a core and an exciter coil for remagnetizing the core material. The remagnetizable core material is embodied as a layer or as multiple layers disposed at a distance from one another, and the core has a maximum total extension G where 2.5 mm≧G≧0.2 mm, a ratio of length to width that is greater than or equal to a value of twenty, and a thickness D where 2 μm≧D≧0.2 μm. Also described is a corresponding method for measuring a magnetic field. | 03-20-2014 |
| 20140103918 | CURRENT SENSOR - A current sensor includes a first current path, a second current path disposed parallel to the first current path, and a pair of first magnetic sensors. The first current path has a pair of main surfaces and includes a plate-shaped first region. The second current path has a pair of main surfaces and includes a plate-shaped second region. The first magnetic sensors are arranged on the respective main surfaces in the first region such that sensing axes of the first magnetic sensors are parallel to the respective main surfaces in the first region. The first magnetic sensors are configured to sense a magnetic field generated by a target current flowing through the first region. The second region is placed such that the main surfaces in the second region are perpendicular to the sensing axes of the first magnetic sensors. | 04-17-2014 |
| 20140125332 | MAGNETOSTRICTIVE LAYER SYSTEM - A magnetostrictive layer system is suggested comprising at least one layer sequence comprising an anti-ferromagnetic, (AFM), layer and a magnetostrictive, ferromagnetic, FM, layer arranged directly thereon, wherein the layer sequence has an associated exchange bias, EB, field, the EB-induced degree of magnetization of the FM layer in the absence of an external magnetic field being within a range between 85% and 100%, and the angle α | 05-08-2014 |
| 20140132255 | SURFACE CURRENT PROBE - A surface current probe includes two current detection coils disposed so as to detect a magnetic field in a direction vertical to an current detection target plane; two disturbance-control coils, each thereof being disposed at a position farther away from each of the two current detection coils, against the current detection target plane, so as to be disposed for detection of a magnetic field in a direction parallel to the current detection target plane; and a terminal resistor coupled to each of the two disturbance-control coils. The two disturbance-control coils are disposed such that induced voltages generated against the current detection target plane at the time of detection of a magnetic field on the outer side of the two current detection coils are opposed in polarity to each other. | 05-15-2014 |
| 20140139212 | BIOLOGICAL INFORMATION ACQUIRING SYSTEM AND METHOD OF DRIVING BIOLOGICAL INFORMATION ACQUIRING SYSTEM - A biological information acquiring system includes a biological information acquiring apparatus having a biological information acquiring section, and a magnetic field generation section, and the biological information acquiring apparatus includes: a power source section which supplies power for driving the biological information acquiring section; a magnetic field detection section which outputs a magnetic field detection signal according to a detection result of a magnetic field generated from the magnetic field generation section; a first switching control section which performs control an on/off state of a first switch section connected to the power source section based on an output state of the magnetic field detection signal; and a second switching control section which performs control the on/off state of a second switch section connected between the first switch section and the biological information acquiring section, based on the output state of the magnetic field detection signal. | 05-22-2014 |
| 20140145715 | DEVICE AND METHOD FOR CHARACTERIZING A LASER BEAM - A device and a method making it possible to measure a magnetization generated within an active medium, or to characterize a linearly polarized electromagnetic wave when said active medium exhibits an Inverse Cotton-Mouton effect, comprises in combination at least the following elements: an active medium in which a linearly polarized electromagnetic wave propagates, a means for producing a transverse magnetic field with respect to the direction of propagation of said electromagnetic wave, a device for measuring the electrical signal suitable for manifesting the magnetization generated within said active medium by said electromagnetic wave. | 05-29-2014 |
| 20140159713 | HIGH SENSITIVITY MAGNETOELECTRIC MAGNETOMETER - Some implementations provide a magnetoelectric magnetometer that includes a piezoelectric layer having a first end portion, a second end portion, and a third portion. The third portion is located between the first end portion and the second end portion. The magnetoelectric magnetometer includes a magnetostrictive element coupled to the third portion of the piezoelectric layer. The magnetostrictive element and the piezoelectric layer are configured to amplify a magnetically induced stress in the magnetostrictive element to the piezoelectric layer, resulting in an electrical response from the piezoelectric layer. The first and second end portions of the piezoelectric layer are fixed, while the third portion is free to bend. | 06-12-2014 |
| 20140159714 | FLUIDIC CELL GUIDANCE FOR FLOW CYTOMETRY - The invention relates to a device and a method for fluidic cell guidance for flow cytometry or analyte enrichment. This allows magnetically marked analytes, in particular cells ( | 06-12-2014 |
| 20140184212 | CURRENT DETECTION CIRCUIT MODULE - A current detection circuit module can correct the sensitivity of current detection before a finished product is fabricated, with high impact resistance. The current detection circuit module has a circuit board on which a control IC is mounted. A magnetic core has a gap at a part thereof. A magnetic detection element is disposed in the gap. A detection circuit outputs a detection signal of a current value flowing to the control IC in accordance with the output of the magnetic detection element. A pass portion is provided to the control circuit board. The magnetic core is mounted on the control circuit board to surround the bus bar. The magnetic detection element is mounted on the control circuit board and is located in the gap. | 07-03-2014 |
| 20140210460 | CONTACTLESS ELECTRIC METER READING DEVICES - This application concerns devices and methods for measuring power flow through an electric meter without a direct electrical connection to the current-carrying conductors of the electric meter. In one representative embodiment, a contactless electric meter sensor comprises an annular member configured to be disposed around an electric meter, and one or more magnetic field sensors mounted on the annular member. The one or more magnetic field sensors can be configured to sense one or more magnetic fields generated by one or more current-carrying conductors passing through the electric meter. | 07-31-2014 |
| 20140232383 | MAGNETIC CORE FLUX SENSOR - A magnetic core flux sensor assembly may include a flux sensor core portion and at least one elongated opening for receiving a conductor winding through the flux sensor core portion. An electrical current flowing through the conductor winding generates a magnetic field about the conductor winding and a magnetic flux flow about the elongated opening. A plurality of pairs of sensor holes are positioned relative to the elongated opening for preventing significant disruption of the magnetic flux flow and for sensing the magnetic flux flow at different distances from an edge of the elongated opening. A sensor conductor winding passes through each pair of sensor holes. The magnetic flux flow generates an electrical signal in each sensor conductor winding. The electrical signal in a particular sensor conductor winding corresponds to the magnetic flux flow at a location of the particular sensor conductor winding. | 08-21-2014 |
| 20140232384 | MAGNETIC CORE FLUX SENSOR - A magnetic core flux sensor assembly may include a flux sensor core portion and an elongated opening for receiving a conductor winding through the flux sensor core portion. The flux sensor core portion may include a width from a perimeter edge of the flux sensor core portion to the elongated opening that is constant. An electrical current flowing through the conductor winding generates a magnetic field about the conductor winding and a magnetic flux flow in the flux sensor core portion. One or more sensor holes may be positioned relative to the elongated opening for sensing the magnetic flux flow at different distances from the elongated opening. A sensor conductor winding may extend through each pair of sensor holes. The magnetic flux flow generates an electrical signal in each sensor conductor winding. The electrical signal corresponds to the magnetic flux flow at a location of the particular sensor conductor winding. | 08-21-2014 |
| 20140232385 | SEMI-HARD MAGNETIC MATERIAL AND THEFT-PREVENTION MAGNETIC SENSOR USING SAME AND METHOD OF MANUFACTURING SEMI-HARD MAGNETIC MATERIAL - A semi-hard magnetic material that is formed with equal to or more than 5.0% but less than 13.0% of Ni by mass, equal to or more than 0.5% but equal to or less than 4.0% of Mn by mass, more than 0% but equal to or less than 3.0% of Al by mass, more than 0% but equal to or less than 1.0% of Ti by mass and a remainder of Fe and an impurity, that has a coercivity of 1000 to 2400 A/m and that has a residual magnetic flux density of 1.3 T or more. A method of manufacturing the above semi-hard magnetic material wherein the material is a thin plate having a thickness of 0.030 to 0.30 mm and, after a cold rolling, performing an aging treatment on the thin plate at a temperature of 520° C. to 680° C. | 08-21-2014 |
| 20140239945 | Two-Wire Probe with Communication Capability - A system of communicating vehicle detection is provided. The system may include a probe having at least a probe controller and a magnetic sensor for detecting the Earth's magnetic fields, and a control system having a main controller, an output port and a two-wire interface for communicating with the probe. The probe controller may be configured to quantify detected magnetic fields into a sensor output value per iteration at a predefined frequency, and initiate an interrupt per iteration the sensor output value is determined to exceed a predefined sensor value. The main controller of the control system may be configured to communicate a supply signal to the probe over a first line of the two-wire interface, monitor a return signal from the probe over a second line of the two-wire interface for interrupts, and generate a call signal on the output port indicative of confirmed vehicle detection if the number of consecutive interrupts in the return signal exceed a predefined interrupt limit. | 08-28-2014 |
| 20140239946 | CURRENT SENSOR - A current sensor includes: two cores that configure closed magnetic circuits surrounding a conductor where a current to be measured flows and are arranged adjacent to each other; two coils that are wound respectively around the two cores and are connected in series to generate a magnetic flux in surrounding directions opposite to each other in the two cores; an excitation power supply that applies an alternating current with a superimposed direct current to the two coils; and a detection circuit that is connected to a connection point of the two coils. It is possible to obtain the current sensor being capable of high precision measurement up to high frequencies and also capable of reducing power consumption. | 08-28-2014 |
| 20140253112 | MAGNETIC FIELD PROBE AND PROBE HEAD THEREOF - A magnetic field probe and a probe head thereof are disclosed herein. The probe head includes an inner metal layer, a shielding unit, and a filtering unit. The inner metal layer receives a magnetic field to be measured. The shielding unit, including a first shielding metal layer and a second shielding metal layer, shields the inner metal layer. The first and the second shielding metal layer are respectively stacked above and below the inner metal layer. The filtering unit, including a first filtering metal layer and a second filtering metal layer, filters out an electric field interfering with the inner metal layer. The first filtering metal layer is stacked between the first shielding metal layer and the inner metal layer. The second filtering metal layer is stacked between the second shielding metal layer and the inner metal layer. | 09-11-2014 |
| 20140253113 | GEOMAGNETIC SENSOR - A geomagnetic sensor includes: a core that constitutes a closed magnetic circuit; a pair of coils that are wound around the core in positions facing each other and are connected in series to generate magnetic flux in the same circumferential direction in the core; an excitation power supply that applies an alternating current with a superimposed direct current to the pair of coils; and a detection circuit that is connected to a connection point of the pair of coils. Unlike a conventional flux gate type geomagnetic sensor, it is not required to excite the core until the core is magnetically saturated, and it is therefore possible to reduce power consumption. | 09-11-2014 |
| 20140266176 | Magnetic Field Sensor and Associated Method That Can Store a Measured Threshold Value in a Memory Device During a Time When The Magnetic Field Sensor is Powered Off - A magnetic field sensor includes a comparator detector for which a measured threshold value is stored prior to power down and recalled upon power up for use by the comparator detector. A corresponding method is associated with the magnetic field sensor. | 09-18-2014 |
| 20140266177 | MAGNETOMETER SAMPLING TO DETERMINE AN ELECTRIC POWER PARAMETER - A method of analyzing an alternating electrical current includes polling a magnetometer at a constant sampling frequency to generate a plurality of magnetic field strength readings. The polling occurs over a plurality of cycles of the alternating electrical current. A time stamp is then assigned to each of the plurality of magnetic field strength readings, and the readings are saved within a common circular buffer according to each reading's respective time stamp and the fundamental frequency of the electrical current. A processor may then determine one or more harmonics of the magnetic field by analyzing the common circular buffer using a Fourier transform. | 09-18-2014 |
| 20140266178 | CURRENT SENSOR - A current sensor includes a conductive element, and at least two magnetic field sensors arranged on the conductive element and configured to sense a magnetic field generated by a current through the conductive element, wherein the at least two magnetic field sensors are arranged on opposite sides of a line perpendicular to a current flow direction in the conductive element. The current sensor further includes an insulating layer arranged between the conductive element and the magnetic field sensors, and at least two conductor traces provided on the insulating layer, wherein one end of the conductor traces connects to a respective magnetic field sensor, and the other end of the conductor traces providing a terminal for outputting the sensor signals. The conductor traces are arranged such that they do not extend entirely around the conductive element. | 09-18-2014 |
| 20140266179 | Magnetic-Field Sensor - An embodiment of a magnetic-field sensor includes a magnetic-field sensor arrangement and a magnetic body which has, for example, a non-convex cross-sectional area with regard to a cross-sectional plane running through the magnetic body, the magnetic body having an inhomogeneous magnetization. | 09-18-2014 |
| 20140292320 | ELECTRONIC DEVICE HAVING AN ELECTRONIC COMPASS ADAPTED TO DETECT WHEN THE DEVICE IS IN A HOLSTER - According to one aspect, a portable electronic device sized and shaped to be received within a holster having a magnetic element. The portable electronic device includes an electronic compass adapted to measure a magnetic field of the magnetic element in at least two axes. When the measured pattern corresponds to a first pattern, the portable electronic device is adapted to determine that the portable electronic device is in the holster. | 10-02-2014 |
| 20140300350 | ELECTRICAL CURRENT TRANSDUCER - A closed-loop current transducer comprising a magnetic circuit, a magnetic field detector, and a compensation coil assembly configured to generate a magnetic field opposing a magnetic field created by an electrical current to be measured flowing in one or more primary conductors extending through a central opening of the magnetic circuit. The magnetic circuit comprises a first branch, a second branch, and first and second end branches, interconnecting the first and second branches such that the branches surround a central passage through which the one or more primary conductors may extend, the second branch forming a receptacle that defines a cavity extending in an axial direction A for receiving a sensing portion of the magnetic field detector, the second branch comprising two second branch portions separated by an interface resulting from the bringing together of opposed ends of a single piece magnetic circuit. | 10-09-2014 |
| 20140312892 | 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. The first compensation current and the second compensation current are adjusted by the first evaluation circuit and the second evaluation circuit such that the resulting magnetic field detected by the magnetic field sensor becomes zero. The second compensation current is greater or smaller than the first compensation current and represents the current to be measured flowing in the primary conductor. | 10-23-2014 |
| 20140320121 | MEASUREMENTS OF EARTH'S MAGNETIC FIELD INDOORS - There is provided an apparatus, comprising: at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus at least to: perform a set of Earth's magnetic field, EMF, measurements inside a building, wherein each EMF measurement result represents at least one of a magnitude and a direction of the EMF in the building;
| 10-30-2014 |
| 20140320122 | CURRENT SENSOR - A first magnetoelectric conversion element group including magnetoelectric conversion elements, and a second magnetoelectric conversion element group including magnetoelectric conversion elements are arranged across a cutout of a wiring board. The first and second groups are arranged line-symmetrically with respect to a first imaginary line. The elements in the first and second groups are arranged line-symmetrically with respect to a second imaginary line. The first imaginary line and the second imaginary line orthogonally intersect each other at a placement position at which a current path to be measured is placed. The orientation of the sensitivity axis of each of a plurality of magnetoelectric-conversion-element sets having point symmetry about the placement position is parallel or antiparallel. An element spacing, which is spacing between neighboring elements in the first and second groups, is narrower than a group spacing, which is the narrowest spacing between the first and second groups. | 10-30-2014 |
| 20140327434 | MAGNETIC FIELD SENSOR - Provided is a magnetic field sensor with which it is possible to simultaneously operate a DC flux gate magnetometer and a search coil magnetometer, a sensor is miniaturized by the DC flux gate magnetometer and the search coil magnetometer being positioned close to one another, and it is possible to measure a magnetic field from a DC magnetic field to an AC magnetic field of a high-frequency region of either the same point or points in close proximity. | 11-06-2014 |
| 20140361765 | Integrated Circuit Using A Digital Method For AC/DC-Sensitive Residual Current Measurement - A method and a device for a galvanically isolated AC/DC-sensitive measurement of a residual current (ΔI), includes a component sensitive to magnetic fields which switches between at least two states in the course of oscillation. A magnetic field is formed in a sphere of action of the component sensitive to magnetic fields due to the residual current (ΔI) and an oscillator signal that switches between a state 1 and a state 2. As a function of the residual current-driven magnetic field, times of stay of the oscillator signal occurring in states 1 and 2 are determined and an output signal proportional to the residual current is obtained from the ratio of the times of stay. | 12-11-2014 |
| 20140375310 | APPARATUS AND A METHOD FOR METAL DETECTION INVOLVING A MOBILE TERMINAL WITH A DISPLAY - An apparatus comprising at least one first signal loop configured to receive a first signal; at least one second signal loop magnetically coupled with the first signal loop configured to generate a second signal; a signal processor configured to monitor the second signal and determine the presence of at least one metal object dependent on the second signal. | 12-25-2014 |
| 20150015247 | Magnetic Particle Imaging Devices and Methods - A magnetic particle imaging device is provided. The device includes a magnetic field source configured to produce a magnetic field having a non-saturating magnetic field region, an excitation signal source configured to produce an excitation signal in the non-saturating magnetic field region that produces a detectable signal from magnetic particles in the non-saturating magnetic field region, and a signal processor configured to convert a detected signal into an image of the magnetic particles. Aspects of the present disclosure also include methods of imaging magnetic particles in a sample, and methods of producing an image of magnetic particles in a subject. The subject devices and methods find use in a variety of applications, such as medical imaging applications. | 01-15-2015 |
| 20150022194 | MAGNETOMETER FOR ALIGNING A PORTABLE DEVICE ON A PLANAR CHARGING SURFACE OF AN INDUCTIVE CHARGING UNIT - A portable electronic uses a magnetometer to determine an alignment with an inductive charging unit magnetic charging field. The alignment increases a portion of the magnetic charging field generated by the inductive charging unit and received by the portable device to better power the device and reduce battery recharge times. The portable device displays motion icons to facilitate a manual alignment. The magnetometer may also be used for magnetic earthly field applications such as a compass, navigation and augmented reality. | 01-22-2015 |
| 20150022195 | MAGNETIC FIELD PROBE - A detector of a magnetic field probe includes a first wiring pattern formed on a first surface of a multilayer substrate and having a predetermined inclination with respect to an axial line direction of the magnetic field probe, a second wiring pattern formed on a second surface and having the predetermined inclination with respect to the axial line direction, and a first penetrating via penetrating through the multilayer substrate in the thickness direction and connecting a front end portion of the first wiring pattern and a front end portion of the second wiring pattern. A rear end portion of the first wiring pattern is connected to a conductor pattern configuring a strip line and a rear end portion of the second wiring pattern is connected to ground patterns configuring the strip line. | 01-22-2015 |
| 20150022196 | CURRENT SENSOR - A current sensor includes a folded-shaped current path including a pair of arm portions extending in parallel with each other, and a pair of magnetoelectric conversion elements provided so as to sandwich therebetween a symmetric axis passing between the pair of arm portions, the pair of magnetoelectric conversion elements being used for detecting magnetism caused by a current passing through the pair of arm portions, wherein a half-bridge circuit in which the pair of magnetoelectric conversion elements is series-connected and a signal is able to be extracted from a connection point between the pair of magnetoelectric conversion elements is formed, and sensitivity axes of the pair of magnetoelectric conversion elements are oriented in a same direction and sensitivity-influencing axes of the pair of magnetoelectric conversion elements are oriented in a same direction. | 01-22-2015 |
| 20150028863 | Microfabricated magnetic field transducer with flux guide - A microfabricated magnetic field transducer uses a magnetically sensitive structure in combination with one or more permeable magnetic flux guides. The flux guides may route off-axis components of an externally applied magnetic field across the sensitive axis of the magnetically sensitive structure, or may shield the magnetically sensitive structure from off-axis, stray fields or noise sources. A combination of flux guides and magnetically sensitive structures arranged on a single substrate may enable an integrated, 3-axis magnetometer in a single package, greatly improving cost and performance. | 01-29-2015 |
| 20150028864 | VEHICLE DOOR HANDLE AND SENSOR DEVICE THEREOF - A vehicle door handle includes a case, a first detector and a second detector. The first detector includes a core and a coil that is wound around the core. The second detector is disposed side by side with the first detector, and includes a sensor electrode that has a wavy geometry and that has an axis substantially parallel to the axis of the core. The sensor electrode includes a first wavy segment and a second wavy segment. The first wavy segment corresponds in position to the coil and has a first linear density, and the second wavy segment has a second linear density that is greater than the first linear density. | 01-29-2015 |
| 20150035524 | MAGNETIC SENSOR, MAGNETIC HEAD, AND BIOMAGNETIC SENSOR - A magnetic sensor includes a channel layer, a magnetization free layer placed on a first section of the channel layer, and a magnetization-fixed layer placed on a second section of the channel layer. A thickness of the channel layer of the first section is different from a thickness of the channel layer of the second section and a resistance of an interface between the channel layer and the magnetization free layer is lower than a resistance of an interface between the channel layer and the magnetization-fixed layer. | 02-05-2015 |
| 20150035525 | PORTABLE DETECTOR FOR METALS DETECTION INCLUDING AN ADVANCED SYSTEM FOR AUTOMATIC STANDBY - The present invention relates to a portable detector ( | 02-05-2015 |
| 20150042324 | CURRENT SENSOR - A current sensor includes a core including groove portions and a separation wall portion, a housing covering the core and including recessed grooves formed along the groove portions, respectively, conductors positioned in the groove portions, respectively, a circuit board fixed to the housing and including a through hole and a land, the through hole penetrating in a direction corresponding to an inserting direction of the conductor, a detection element detecting a magnitude of a magnetic field and positioned in each of recessed grooves to be closer to an opening end of the groove portion relative to the conductor, the detection element being arranged so that a detecting direction of the detection element is directed along a distance direction of the groove portions, the detection element including a connection terminal positioned in the through hole, the connection terminal electrically connected to the land, and a guide portion provided at the housing. | 02-12-2015 |
| 20150061660 | SENSOR DEVICE - A sensor device includes a power line and a semiconductor device. The semiconductor device includes an inductor. The inductor is formed using an interconnect layer (to be described later using FIG. | 03-05-2015 |
| 20150070006 | ELECTRICAL CURRENT TRANSDUCER MODULE - Electric current transducer module comprising a magnetic circuit with a magnetic core and an air gap, the magnetic core having a central passage configured to receive a primary conductor carrying a primary current to be measured. The electric current transducer module further comprises a signal processing circuit including a circuit board and contact terminals for connection to external circuitry, and a magnetic field detector arranged at least partially in the air gap of the magnetic circuit. The electric current transducer module further comprises a magnetic core mounting support comprising a molded support and a grounding and fixing mechanism configured to hold and rigidly fix the magnetic core to the molded base to form a magnetic circuit unit. The magnetic circuit unit is configured to be fixedly assembled to the printed circuit board. | 03-12-2015 |
| 20150084623 | ADJUSTABLE MAGNETIC PROBE FOR EFFICIENT NEAR FIELD SCANNING - A method and apparatus for testing near field magnetic fields of electronic devices. The method comprises measuring a magnetic field using a loop antenna that is oriented in a first direction. The loop antenna is swept through a desired range of azimuth angles while measuring the magnetic field. Once the first direction testing is completed, the loop antenna is changed to a second orientation direction. The magnetic field is then measured in the second orientation direction and is swept through a desired range of orientation angles in the second direction. The apparatus provides a loop antenna connected to a coaxial probe, with the coaxial cable serving as the center conductor, and two outer conductors. An axle is mounted to the loop antenna and connected to a step motor. A servo motor is also provided for moving the arm assembly. | 03-26-2015 |
| 20150097559 | SYSTEM AND METHOD FOR LOSS PREVENTION USING A MAGNETOMETER - A loss prevention device includes a magnetometer and a processor operatively coupled to the magnetometer. The magnetometer is configured to measure intensities and directions of one or more maxima in a magnetic field, the one or more maxima including at least a first maximum from magnetic north of the Earth, wherein a first intensity and a first direction are associated with the first maximum. The processor is configured to ignore the first intensity and the first direction associated with the first maximum and to determine whether the one or more maxima includes a second maximum distinct from the first maximum. | 04-09-2015 |
| 20150115946 | Systems and Methods Having Omnipolar Comparators for Magnetic Switches - An omnipolar magnetic sensor system includes an input stage and a behavior component. The input stage is configured to receive a source signal and to selectively chop the source signal. Further, the input stage is configured to balance the source signal using behavior parameters and generate a balanced source signal. | 04-30-2015 |
| 20150115947 | PAPER SHEET MAGNETIC DETECTION APPARATUS - The object is to avoid degradation of magnetic detection precision arising due to magnetization of transport rollers used for transporting a paper sheet. A paper sheet magnetic detection apparatus that detects a magnetic material in the paper sheet by using a magnetic sensor includes a transport path that transports paper sheets one by one; at least one magnet that is used in the detection of the magnetic material by the magnetic sensor; and a plurality of transport rollers that are arranged near the magnetic sensor and that transport the paper sheet in the transport path. Outer peripheral surfaces of the plurality of transport rollers that face the transport path are made of a non-magnetic material. | 04-30-2015 |
| 20150137804 | MAGNETIC FIELD SENSING MODULE, MEASUREMENT METHOD, AND MANUFACTURING METHOD OF A MAGNETIC FIELD SENSING MODULE - A magnetic field sensing module including a plurality of magnetic flux concentrators and a plurality of sensing elements is provided. Each of the magnetic flux concentrators extends along a first extension direction, and the magnetic flux concentrators are arranged along a second direction. The sensing elements are respectively disposed at a position corresponding to a position between the magnetic flux concentrators and positions corresponding to two sides of the magnetic flux concentrators arranged along the second direction. Sensing directions of the sensing elements are substantially the same. A measurement method and a manufacturing method of a magnetic field sensing module are also provided. | 05-21-2015 |
| 20150293186 | SENSOR ELEMENT BASED ON MAGNETO-THERMOELECTRIC EFFECT, AND REALIZING METHOD THEREOF - A sensor element based on a magneto-thermoelectric effect and realizing method thereof are provided, the sensor element includes a plurality of thermoelectric elements having an angular structure and are located in a magnetic field; the thermoelectric element is made of magnetic material having a thermoelectric effect, and includes a first side, a second side, and an angular part formed by connecting the two sides; the angular part is provided with a heating device; and the temperature in the region where the other end of the first side and the second side are located are less than or equal to the ambient temperature. | 10-15-2015 |
| 20150323585 | FAULT CURRENT DETECTION WITH AN INTEGRATED MAGNETIC SENSOR ARRAY - A system is provided, comprising: a magnet flux sensor; a first conductor proximate to the magnetic field sensor; a current controller coupled to the first wire; a second conductor proximate to the magnetic field sensor; wherein the first current controller and the second current controller ensure that current do not travel in opposite directions. | 11-12-2015 |
| 20150346372 | COMMUNICATION SYSTEM HAVING PROXIMITY DETECTOR OF FERROUS MATERIALS - A metal detection system for a portable radio is provided. The metal detection system comprises a magnet coupled to a substrate, such as a belt, the magnet generating a magnetic field. The system further comprises a magnetometer coupled to the substrate, the magnetometer measuring changes in the magnet's magnetic field strength indicative of metal accessories being within a predetermined proximity of the magnet. The removal of accessories, such as law enforcement accessories (for example handcuffs) can be detected. The portable radio detects changes to the magnetic field in response to changes in location of the metal accessories. The portable radio can transmit a signal in response to accessories being removed from the substrate. | 12-03-2015 |
| 20150348349 | MEASURING DEVICE FOR MEASURING MAGNETIC PROPERTIES OF THE SURROUNDINGS OF THE MEASURING DEVICE - A measuring device for measuring magnetic properties in a vicinity of the measuring device, in connection with a sensor line having sensor elements, includes a magnetization device for generating a magnetic field substantially homogeneous in a region of the sensor line, the field direction of the magnetic field, in the region of the sensor line, being at an angle of greater than 0° and less than 90° to the direction of the sensor line. | 12-03-2015 |
| 20150355238 | Magnetic Tampering Detection and Correction in a Utility Meter - An arrangement for use in an electricity meter includes a sensor and a processing circuit. The sensor is supported directly or indirectly by a meter housing. The sensor is configured to measure a magnetic field in proximity to a current sensor of the electricity meter. The sensor is also configured to generate a measurement signal representative of, at least in part, a magnitude of the magnetic field. The processing circuit is operably coupled to receive first information representative of the measurement signal. The processing circuit is configured to obtain a first value representative of the magnetic field based on the first information, and determine a first adjustment value responsive to a determination that the first value exceeds the first threshold value. The processing circuit is further configured to generate energy consumption information based at least in part on the first adjustment value. | 12-10-2015 |
| 20160011284 | DYNAMIC FIELD DETECTION IN A MRT | 01-14-2016 |
| 20160033585 | Sensor With Micro Break Compensation - A sensor device includes a high voltage component, a sensor component and a charge storage component. The sensor component utilizes a low voltage supply. The high voltage component is configured to generate the low voltage supply from a high voltage supply. The charge storage component is configured to provide charge for the low voltage supply during a power break. The charge storage component has a vertical capacitor. | 02-04-2016 |
| 20160041235 | MAXIMIZATION OF TARGET SIGNAL AND ELIMINATION OF BACKBIAS COMPONENT FOR A DIFFERENTIAL UPRIGHT POSITION SENSOR - Embodiments relate to sensor device configurations. In one embodiment, a sensor device comprises a bias magnet, a field sensor die, a first set of one or more magnetic field sensor elements, a second set of one or more magnetic field sensor elements, a memory, and circuitry. The sensor device is configured to combine the sensed magnitudes from each of the magnetic field sensor elements of the first set to obtain a first set output, trim the sensed magnitudes from each of the one or more magnetic field sensor elements of the second set with one of the set of trim values to obtain a second set output, and combine the second set output with the first set output to provide an output signal. | 02-11-2016 |
| 20160103191 | METHODS AND APPARATUS FOR TESTING OF WIRELESS POWER TRANSMITTERS AND SYSTEMS - This disclosure provides methods and apparatus for wireless power field testing. A method for generating testing the interoperability of a wireless power transmitter with one or more wireless power receivers is provided. The method includes generating a magnetic field via a transmit antenna. The method further includes measuring a first uniformity of the magnetic field at all the locations within the magnetic field on a charging surface of the wireless power transmitter. The method also includes determining that the measure first uniformity of the magnetic field is within a range of values at all locations on the charging surface of the wireless power transmitter. In some implementations, the method further includes applying a load to the magnetic field, measuring a second uniformity of the magnetic field while the load is applied, and determining if the first uniformity of the magnetic field is substantially similar to the second uniformity. | 04-14-2016 |
| 20160116552 | MAGNETIC FIELD MEASURING DEVICE WITH VIBRATION COMPENSATION - A magnetic field measuring device with a holding body and a plurality of magnetoelectric cantilever sensors, each of which is designed to output one electrical voltage signal while it bends in the presence of a magnetic field, the cantilever sensors being non-positively connected or bonded to the holding body. | 04-28-2016 |
| 20160146903 | LOW-POWER MAGNETOMETER ASSEMBLIES WITH HIGH OFFSET STABILITY - Systems, methods, and computer-readable media for calibrating the offset of a magnetometer assembly with reduced power are provided. In one embodiment, a method for operating an assembly may include determining a difference between a current signal measurement output component of a first magnetometer sensor and a previous signal measurement output component of the first magnetometer sensor, comparing the determined difference with a current threshold value, and generating an assembly output based on the comparing, where, when the determined difference is greater than the current threshold value, the generating may include providing a first assembly output using a current offset output component of a second magnetometer sensor, and, when the determined difference is less than the current threshold value, the generating may include providing a second assembly output using a previous offset output component of the second magnetometer sensor. | 05-26-2016 |
| 20160169984 | Magnetic Field Sensor | 06-16-2016 |
| 20160187388 | Current Sensor - To provide a current sensor excellent in insulation resistance. A current sensor ( | 06-30-2016 |
| 20170234939 | MAGNETIC FIELD SENSOR, MODULE WITH A MAGNETIC FIELD SENSOR AND METHOD TO MANUFACTURE A MODULE WITH A MAGNETIC FIELD SENSOR | 08-17-2017 |
| 20170234940 | MAGNETIC SENSOR INCLUDING A LORENTZ FORCE TRANSDUCER DRIVEN AT A FREQUENCY DIFFERENT FROM THE RESONANCE FREQUENCY, AND METHOD FOR DRIVING A LORENTZ FORCE TRANSDUCER | 08-17-2017 |
| 20170234943 | PERSONAL RADIO-FREQUENCY ELECTROMAGNETIC RADIATION EXPOSIMETRY | 08-17-2017 |
| 20180024174 | METHODS AND APPARATUS TO DETERMINE AN OPERATIONAL STATUS OF A DEVICE | 01-25-2018 |
| 20190146043 | Differential magnetic load cells for compact low-hysteresis force and torque measurements | 05-16-2019 |
| 20220137158 | CONTACTLESS MAGNETIC SENSING SYSTEM AND METHOD - Disclosed are a contactless magnetic sensing system and method. Disclosed are a sensing system and method capable of extracting a rotation angle without a problem although the center axis of a rotating magnet is separated and disposed from an extension line in a detection direction of a Z-axis magnetic sensor or a center axis of the magnetic sensor. | 05-05-2022 |
