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| Number | Title | Issue Date |
| 8089268 | Apparatus and method for removing anisotropy effect from directional resistivity measurements A directional resistivity tool includes at least one receiver deployed axially asymmetrically between at least one pair of transmitters. The transmitters are configured to transmit electromagnetic waves at first and second correspondingly distinct frequencies f... | 01/03/2012 |
| 8058864 | Circuits and methods for providing a magnetic field sensor with an adaptable threshold A magnetic field has a threshold that adapts in relation to a magnitude of a magnetic field signal representative of a movement of an object. A corresponding method adapts a threshold in relation to a magnitude of a magnetic field signal representative of a movement... | 11/15/2011 |
| 7407781 | Oocyte recording chamber An oocyte recording chamber for electrophysiological measurements. The recording chamber includes a base and a cover attached to the base. The cover and the base define a chamber having a size sufficient to accommodate an oocyte. The recording chamber includes a fir... | 08/05/2008 |
| 7379800 | Tire pressure monitoring using hall effect sensors Wheel assembly with a tire pressure monitoring system includes a wheel rim, a tire mounted thereon, a housing having an interior in flow communication with the tire interior such that the same pressure prevails in the tire and in the housing interior, a magnet arran... | 05/27/2008 |
| 7362548 | Magnetic sensor and manufacturing method therefor A magnetic sensor comprises magnetoresistive elements and permanent magnet films, which are combined together to form GMR elements formed on a quartz substrate having a square shape, wherein the permanent magnet films are paired and connected to both ends of the mag... | 04/22/2008 |
| 7361257 | Electrochemical screening system Devices and methods for evaluating an electrochemical reaction are disclosed. A device includes an electrochemical cell having a cavity for containing a liquidus electrolyte, a first working electrode having at least one electrolytic surface at least partially withi... | 04/22/2008 |
| 7324014 | Inductive loop detector with automatic frequency change A system and method is disclosed to the elimination of cross talk between inductive loop detector units in a security system. The system includes appropriate devices for assigning different operational frequencies of each loop detector circuit to avoid cross talk. I... | 01/29/2008 |
| 7322744 | Temperature measurement device A temperature measuring device includes a temperature-responsive element that mechanically moves a first inductive assembly component relative to a second inductive assembly component in response to temperature changes. The movement of the first inductive assembly c... | 01/29/2008 |
| 7294981 | Method of determining the position of the shaft of a drive motor for a roller blind The method of determining the position of the shaft of a direct current motor including an armature powered via brushes and a bar commutator and designed to drive a roller blind includes the following phases: detecting and counting... | 11/13/2007 |
| 7289913 | Local feature characterization using quasistatic electromagnetic sensors Local features such as cracks in materials are nondestructively characterized by measuring a response with an electromagnetic sensor and converting this response into a selected property using a database. The database is generated prior to data acquisition by using ... | 10/30/2007 |
| 7289040 | Device for detecting vehicles A magnetic field sensor is provided alongside a roadway in order to detect vehicles. A permanent magnet is installed in the roadway at such a distance from the magnetic field sensor that the magnetic field of the permanent magnet is stronger than the geomagnetic fie... | 10/30/2007 |
| 7272520 | Method and apparatus for determining a current in a conductor The present invention provides a method of determining a current in a conductor. The method comprises the steps of determining the nth spatial derivative of at least one vector component of the magnetic field associated with the current at at least one po... | 09/18/2007 |
| 7231325 | System for evaluating a sensor signal The inventive device for evaluating the sensor signal includes the provider for providing the sensor signal, the processor for processing the sensor signal and for providing an information signal comprising information regarding the amplitude course of the sensor si... | 06/12/2007 |
| 7230421 | Damage standard fabrication with attached sensor Reference standards or articles having prescribed levels of damage are fabricated by monitoring an electrical property of the article material, mechanically loading the article, and removing the load when a change in electrical properties indicates a prescribed leve... | 06/12/2007 |
| 7222034 | In-circuit measurement of saturation flux density Bsat, coercivity Hc, and permiability of magnetic components using a digital storage oscilloscope An oscilloscope performs an in-circuit measurement of voltage across, and current through, a core winding of an inductor, and derives the actual B and H values with n number of turns, receives data indicative of the magnetic length of the circuit, and plots the B_H ... | 05/22/2007 |
| 7178418 | Segment of a sensor-supporting element for a scraper-type device Disclosed is a segment (15) of a sensor-supporting element for a scraper-type device, which comprises at least two pairs of runners (16a, 16b) that are arranged essentially parallel behind each other. A support plate (20) re... | 02/20/2007 |
| 7124655 | Two-wire sensor for measuring a physical parameter To measure a physical parameter, a two-wire sensor produces pulse-width modulated signals (PWM) whose pulse width is preferably modulated as a function of the physical parameter to be measured. To indicate an error or a malfunction, the two-wire sensor provides an e... | 10/24/2006 |
| 7112762 | Systems for correcting slow roll Certain exemplary embodiments comprise a system comprising: a heating element; and a control system adapted to control a heating of a shaft to a temperature within a predetermined temperature range for a predetermined time interval, the heating sufficient to reduce ... | 09/26/2006 |
| 7098560 | Flux probe for electric generator A flux probe (100) for measuring the rotor flux of an electric generator (10). The probe (100) is affixed to a probe carrier (102) and held within a stator coil slot (62) by affixing the carrier (102) to two opposing grooves... | 08/29/2006 |
| 7089130 | Electric/magnetic field analysis method using finite difference time domain, material descriptive method in electric/magnetic analysis, electric/magnetic analysis device, analysis data generation device and storage medium Two centerlines each of which goes through the center of a surface and is parallel to one of the coordinate axes are considered for each surface constituting a cell. If one of the centerlines intersects a boundary, a line which goes through the intersection and is o... | 08/08/2006 |
| 7057369 | System and device for regulating the position of a drivable component and drive therefor A system for detecting the position of a component drivable by a control element drive, the system comprising: a position sensor housed in a position regulator housing, a movable motion representative to be driven by an actuating motion of the component, via which m... | 06/06/2006 |
| 7026637 | Method and system for measuring runout of a rotating tool A method, system, and computer program product for measuring runout of a rotating tool are provided. A rotating tool is illuminated with a coherent electromagnetic radiation. The tool has an axis and a reflective surface, and completes a rotation in one period. The ... | 04/11/2006 |
| 7009360 | Method for controlling SRM switching angle by analog encoder system Disclosed is a method for controlling an SRM (Switched Reluctance Motor) switching angle by an analog encoder system that can perform a precise control of the switching angle of the SRM by comparing an analog sensor signal detected by the analog encoder system with ... | 03/07/2006 |
| 6995021 | Method and apparatus for qualitative and quantitative detection of analytes A method and apparatus for the qualitative and quantitative detection of analytes is disclosed in which in the detection of an analyte in a sample, an elongated migration base is used, in which there is an area for binding a magnetically marked analyte, and in which... | 02/07/2006 |
| 6979531 | SEA-TROSY and related methods A method for preferentially observing an exposed position (1c) of a macromolecule. A sample is obtained having a macromolecule (1a) with a first proton (1) and a second molecule (2a) with a second proton (2); t... | 12/27/2005 |
| 6965228 | Proximity switch encapsulated in a plastic housing and having a shield A proximity switch having a coil former (3) which is fitted with at least one coil (4, 5, 6), has an associated board (8) and is held by a plastic housing (1), and having an electrically conductive shield (2) between the coil forme... | 11/15/2005 |
| 6961605 | Method for processing biomagnetic field data, magnetic field contour mapping, forming their waveforms and a biomagnetic instrument using the same A method for processing biomagnetic fields generated by biocurrents resulting from activities of human brain or myocardia and its mapping apparatus are provided, which features biomagnetic measurement and its analysis, magnetic field mapping and its imaging and thei... | 11/01/2005 |
| 6940701 | Magnetic sensor, production process of the magnetic sensor and magnetic array suitable for the production process The present invention aims to provide a magnetic sensor provided with a magnetoresistive effect element capable of stably maintaining a direction of magnetization in a magnetic domain of a free layer. The magnetic sensor includes a magnetoresistive effect ele... | 09/06/2005 |
| 6931353 | Method of predicting motor performance based on CRML material properties A method of predicting the performance of certain electromagnetic devices is based on the integrated average core loss (IACL) and the integrated average relative permeability (IAP) of the electromagnetic core material used in the devices. The method includes the ste... | 08/16/2005 |
| 6924150 | Magnetic resonance imaging contrast system A method for improving the magnetic resonance imaging contrast of a selected portion of a sample. A selected ferrimagnetic constituent is associated with the sample portion, by molecular or biological attachment or by some other means, so that the sample portion is ... | 08/02/2005 |
| 6914843 | Memory device tester and method for testing reduced power states A memory device tester capable of testing for proper operation of reduced power states in memory devices. The memory device tester can include a processor or a state machine, each configured to send commands to the memory device, and to compare results. An example o... | 07/05/2005 |
| 6873919 | Method and device for machine diagnosis, especially for transmission diagnosis A method for machine diagnosis and, in particular, for transmission diagnosis of a machine or motor vehicle. The measurement system comprises a capturing magnet (2), on the surface of which the ferritic wear particles (3) to be detected accumulate. A b... | 03/29/2005 |
| 6861836 | Bearing overtemperature indicator A non-ferrous component comprising a thermally-affected adhesive applied to a surface of the component, and at least one ferrous metal wire attached to the surface of the component by the thermally-affected adhesive. ... | 03/01/2005 |
| 6821552 | Method and apparatus for determining the pass through flux of magnetic materials The invention includes an apparatus and method for determining the pass through flux of magnetic materials. The apparatus comprises one or more magnetic field sensors arranged in such a way as to collect field strength data in any or all the x, y, z directions. The ... | 11/23/2004 |
| 6675645 | Electromagnetic method of and apparatus for electromagnetic parameters of material (thin films and bulks) monitoring A device for measuring thin films and bulks is disclosed using slow-wave structures in electrodynamic elements to allow a decrease in frequency, an increase in sensitivity to electromagnetic parameters and accuracy of their monitoring. A method is also di... | 01/13/2004 |
| 6675648 | Gear assembly including magnetic cap with alignment feature A float-type liquid level gauge assembly is provided for measuring the level of a liquid in a tank. The liquid level gauge includes a gear housing for efficiently coupling the gears and accurately assembling and aligning certain components; a movable pivo... | 01/13/2004 |
| 6621263 | High-speed corrosion-resistant rotating cylinder electrode system A high-speed corrosion-resistant rotating cylinder electrode test apparatus for monitoring of corrosion rates of metals includes an electrochemical/permeation cell body adapted to contain a fluid whose corrosive effect is to be monitored, the cell body ha... | 09/16/2003 |
| 6602571 | Method for manufacturing magnetic encoders and magnetic encoders manufactured by using such method An unvulcanized raw rubber is provided, to which magnetic ferrite powder is added. A resulting mixture composed of the unvulcanized raw rubber and magnetic ferrite powder is passed through a rolling machine or an extruding machine such that the mixture is... | 08/05/2003 |
| 6592959 | Encoder made of rubber material and method of manufacturing thereof An encoder made of rubber material in which the S-poles and the N-poles are alternately magnetized in circumference, whose magnetic force is strong and whose variation of the magnetic force is slight in the circumferential direction when it is magnetized.... | 07/15/2003 |
| 6564900 | Method and apparatus for reducing acoustic noise in MRI scanners A technique for reducing acoustic noise emitted by a magnetic resonance imaging system includes providing energy dampening elements in the scanner, such as within the gradient coil assembly, between the gradient coil assembly and the primary magnet, and a... | 05/20/2003 |
