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| Number | Title | Issue Date |
| 8159218 | Microelectromechanical magnetometer with integrated electronics A method of manufacturing an apparatus 200 comprising forming an integrated magnetometer package 202. Forming an integrated magnetometer package 202 includes forming a movable part 215 from a MEM magnetometer substrate 210, and att... | 04/17/2012 |
| 8148977 | 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... | 04/03/2012 |
| 8106652 | Apparatus for magnetizing a magnetizable element An apparatus is for magnetizing a magnetizable element to generate magnetically encoded regions. The apparatus includes electric connection elements for electrically contacting at least two different portions of the magnetizable element. The apparatus also includes ... | 01/31/2012 |
| 8098066 | Magnetometric device for evaluating a physical parameter, and use A magnetometric device for evaluating a physical parameter (D, K), comprising a circuit (1) which is sensitive to a magnetic field, a measurement circuit (2) and a magnetic field generator (3), the sensitive circuit (1) being subjected to... | 01/17/2012 |
| 8089275 | 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 (SSP1, SSP2, SSP3), which are located along a main linear direction (L) and in which the third sensor focus (SSP3) is located in the middle betw... | 01/03/2012 |
| 8054070 | Nanomagnet-based magnetic anomaly detector A field distributed array of a plurality of underwater sensors are used to detect, preferably using a nanomagnet, slight changes in magnetic fields caused by passing metallic structures, such as submarines. Each sensor is preferably configured to communicate with, e... | 11/08/2011 |
| 7982460 | 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... | 07/19/2011 |
| 7915891 | MEMS device with tandem flux concentrators and method of modulating flux A microelectromechanical modulating magnetic sensor comprising a base; a magnetic transducer associated with the base that provides an output in response to a magnetic field; a pair of movable flux concentrators positioned to move relative to the magnetic transducer... | 03/29/2011 |
| 7915890 | 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... | 03/29/2011 |
| 7898248 | Magnetic screening system and a network managing same 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 ... | 03/01/2011 |
| 7898247 | 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... | 03/01/2011 |
| 7868612 | 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... | 01/11/2011 |
| 7830142 | Tuning fork magnetometer Apparatus comprises a tuning fork having first and second tines, a first magnet disposed on the first tine, and a second magnet disposed on the second tine. In one embodiment the magnets comprise permanent magnets; in another they comprise electromagnets. In a prefe... | 11/09/2010 |
| 7816914 | Built-in testing and transient avoidance for magnetic sensors A magnetic sensor assembly (100) uses printed circuit boards (PCB) (102) having a first surface (130) and an opposite, complementary second surface (132) to fabricate the sensor devices (104) and their associated processing circuit... | 10/19/2010 |
| 7755352 | Built-in testing and transient avoidance for magnetic sensors A magnetic sensor assembly (S) of the type having at least one capacitor (44) electrically connecting an output signal (70) from a magnetic sensor unit (24) to an output signal source (30) includes switch (14) for controllably elec... | 07/13/2010 |
| 7710112 | 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... | 05/04/2010 |
| 7696749 | 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 f... | 04/13/2010 |
| 7663362 | Device and method for detecting deformation of the viscoelastic magnet 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.... | 02/16/2010 |
| 7659716 | Sensor circuit, semiconductor device, and electronic apparatus A sensor circuit has: a sensor portion that obtains, as an electrical signal, information on an object to be measured or detected; and a control circuit that controls the operation of the sensor portion. The control circuit receives a start input signal inputted the... | 02/09/2010 |
| 7649351 | 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 obtain... | 01/19/2010 |
| 7649352 | Magnetic field sensor A magnetic field sensor comprises a first and a second carrier foil and a spacer arranged there between. The spacer delimits a sensing region of the sensor in which the first and second carrier foils can be brought together against the their resiliency. At least two... | 01/19/2010 |
| 7646195 | Apparatus and method for sensing rotation of a wheel An apparatus for sensing rotation of a wheel includes a sensor and a detector. The sensor is disposed in a wheel, and is operable to detect the earth magnetic field. The detector is operable to detect a change of a sensed earth magnetic field in order to sense rotat... | 01/12/2010 |
| 7612559 | Method and system for continuous position detection of moving parts in relation to each other The invention relates to a method and system for continuous position detection using a contact-free detection technology. An arrangement includes a magnetic field source and magnetometer sensor, where the magnetic field source is adapted to generate a first magnetic... | 11/03/2009 |
| 7602177 | Sensor having moveable cladding suspended near a magnetic field source An apparatus (46, 416, 470) is provided for sensing physical parameters. The apparatus (46, 416, 470) comprises a magnetic tunnel junction (MTJ) (32, 432), first and second electrodes (36, 38, 426, 434), a magnetic field source (MFS) (... | 10/13/2009 |
| 7564237 | Integrated 3-axis field sensor and fabrication methods A multi-axis magnetic or other field sensing device and method of fabricating a multi-axis magnetic or other field sensing device. An example sensing device is a 3-axis sensor package on a substrate with sensors on opposing sides of the substrate. One side of the su... | 07/21/2009 |
| 7560921 | Method and device for analyzing distribution of coercive force in vertical magnetic recording medium using magnetic force microscope A coersive force distribution analyzing, apparatus applies a magnetic field substantially perpendicularly to a sample including a perpendicularly magnetically recordable magnetic thin film. While tow-dimensionally moving the sample, the coersive force distribution a... | 07/14/2009 |
| 7541804 | Magnetic tunnel junction sensor Methods and apparatus are provided for sensing physical parameters. The apparatus comprises a magnetic tunnel junction (MTJ) and a magnetic field source whose magnetic field overlaps the MTJ and whose proximity to the MTJ varies in response to an input to the sensor... | 06/02/2009 |
| 7521927 | Magnetic induction switching circuits and methods A magnetic induction switching circuit comprising a magnetic induction device for sensing a magnetic field and generating signals corresponding to the polarity of the field. A detection control unit detects the signals generated in response to a magnetic field and c... | 04/21/2009 |
| 7511483 | Device for sensing RF field The device for sensing a RF field comprises a flux-receiving loop (1) including a circumferential path having a defined path width (d), the flux-receiving loop (1) having a portion (10) that transforms the magnetic flux flowing through the flux ... | 03/31/2009 |
| 7501815 | Combined magnetic field gradient and magnetic field strength sensor A magnetic field sensor device (2) is described that comprises an oscillatory member (8) and current control means (6). The current control means (6) is arranged to pass an alternating current (AC) along at least first (10) and sec... | 03/10/2009 |
| 7492151 | Magnetic anomaly detector and method using the microwave giant magnetoimpedence effect A high sensitivity magnetic anomaly detector for geomagnetic exploration comprises a shorted coaxial transmission line having as central conductor an amorphous magnetic wire. A static magnetic field is applied along the transmission line. A transverse electromagneti... | 02/17/2009 |
| 7474093 | Magnetic field sensor apparatus A magnetic field sensor apparatus includes a first magnetic field sensor and a second magnetic field sensor, arranged on a substrate in a spaced manner from each other, a first temperature sensor with an output for a first temperature sensor signal, a second tempera... | 01/06/2009 |
| 7471083 | Apparatus and method for showing that a magnetic field produces a couple and not a force An apparatus for observing magnetic phenomena including a nonferrous planar platform, a cylinder disposed upright on the platform, magnets placed on the platform at the lower end of the cylinder, specimen suspending means disposed at the upper end of the cylinder, f... | 12/30/2008 |
| 7443167 | Interleaved magnetometry and pulsed electromagnetic detection of underground objects Magnetometry and pulsed electromagnetic radiation (EM) may be employed during a same survey pass by synchronously interleaving the collection of magnetometer data with pulses from EM sensors. For example, one or more magnetometers may be sampled between pulses of on... | 10/28/2008 |
| 7429858 | Oscillating-beam magnetometer In one embodiment, an integrated magnetometer has a deformable, electrically conducting beam that is mounted on a substrate and adapted to oscillate with respect to the substrate. When the oscillating beam is exposed to a magnetic field, the magnetic field induces a... | 09/30/2008 |
| 7429859 | Device for punctual measurement of a radiofrequency magnetic field with constant amplitude and frequency The invention concerns a device for measuring a radiofrequency magnetic field, characterised in that it comprises on a common support (10): a coil forming a primary reception antenna; a voltage-controlled oscillator, monitored so that its output frequency dep... | 09/30/2008 |
| 7420364 | Small-sized attitude detection sensor and portable telephone using the small-sized attitude detection sensor An attitude detection sensor includes three magnetic sensing parts that detect magnetic field strength in respective directions along three axes perpendicular to each other, and two tilt sensing parts that detect tilt angles around two axes perpendicular to each oth... | 09/02/2008 |
| 7420366 | Coupled nonlinear sensor system A sensor system employing a plurality of nonlinear sensors utilizes a coupling network to interconnect the sensors wherein the coupling network inherently induces oscillations in the sensor system. This approach removes the need to provide bias signal generation eit... | 09/02/2008 |
| 7414404 | Metal detection apparatus A metal detection apparatus includes a transmitter for generating a magnetic field in the vicinity of the metal object, and a detector for detecting a secondary magnetic field. The detector include a first gradiometer for providing a first output signal representati... | 08/19/2008 |
| 7414396 | Sensor with magnetic tunnel junction and moveable magnetic field source Methods and apparatus are provided for sensing physical parameters. The apparatus comprises a magnetic tunnel junction (MTJ) and a magnetic field source whose magnetic field overlaps the MTJ and whose proximity to the MTJ varies in response to an input to the sensor... | 08/19/2008 |
