Matches 51 - 100 out of 166 < 1 2 3 4 >


Match Document Document Title
US20150160326 Calibration of a Magnetic Sensor  
The invention relates to a magnetic sensor which is designed for checking value documents, and to a method for calibrating the magnetic sensor. The magnetic sensor has different calibrating...
US20140002061 INDUCTIVE PROXIMITY SENSOR AND METHOD FOR FITTING SAID SENSOR  
An inductive sensor including a casing in which are positioned: a ferromagnetic core having a U shape, which core includes two external branches and a transverse branch linking the two branches;...
US20100156396 DEVICE FOR CALIBRATION OF A FIELD TRANSMITTER  
Device for calibration of a field transmitter comprising a shaped body on which there are disposed first means for sensing magnetic fields the activation of which allows calibration of a first...
US20150061647 METHOD FOR CALIBRATING A MEASURING DEVICE FOR INSPECTING SURFACES ON THE BASIS OF BARKHAUSEN NOISES FOR A SPECIFIED COMPONENT GEOMETRY  
A method for enhancing inspection of components of specific geometry based on Barkhausen noises. The method includes specifying a first calibration curve that is independent of the component...
US20090273339 CALIBRATION METHOD AND CALIBRATION APPARATUS FOR A HAND-HELD LOCATING DEVICE  
A calibration apparatus for a hand-held locating device (7) has at least one first coil configuration (1a) having a first measuring range (2′) and a second coil configuration (1a′) having a second...
US20090219011 Correcting Offset in Magneto-Resistive Devices  
Method and apparatus improve sensing accuracy and reduce bias shift in anisotropic magneto-resistive sensors using paired integrators and sampling switches for processing outputs of the sensor on...
US20090128138 METHOD FOR CORRECTING MAGNETIC BASED ORIENTATION MEASUREMENTS FOR LOCAL BIASING FIELDS  
A method of determining an orientation of a data acquisition system deployed on a seafloor includes measuring horizontal magnetic fields using detectors on the data acquisition system while the...
US20100315067 Power Network Sensor Devices and Related Methods  
An operation detection device for an overcurrent protection component that detects a transition event between a closed state and an open state of the protection component includes an event sensor...
US20130335065 SENSING DEVICE AND RELATED OPERATING METHODS  
Apparatus, systems, and methods are provided for sensing devices. An exemplary sensing device includes a sensing arrangement on a substrate to sense a first property, a heating arrangement, and a...
US20090140724 Magnetic Field Sensor Assembly  
A magnetic field sensor assembly has at least one magnetic field sensor integrated into a semiconductor chip and has at least one magnetic field source. The semiconductor chip and the at least one...
US20120268108 CURRENT SENSOR OPERATING IN ACCORDANCE WITH THE PRINCIPLE OF COMPENSATION  
An exemplary current sensor operating in accordance with the principle of compensation includes a primary winding creating a magnetic field based on a current to be measured, a secondary winding...
US20150219689 PROBE CARD AND METHOD FOR TESTING MAGNETIC SENSORS  
A probe card and method are provided for testing magnetic sensors at the wafer level. The probe card has one or more probe tips having a first pair of solenoid coils in parallel configuration on...
US20140049251 SENSORS  
Embodiments of the present invention provide an electromagnetic sensor (400) for detecting a microstructure of a metal target, comprising: a magnetic device (410, 420) for providing an excitation...
US20120153937 BIASING CIRCUIT FOR A MAGNETIC FIELD SENSOR, AND CORRESPONDING BIASING METHOD  
Described herein is a biasing circuit for a magnetic-field sensor; the magnetic-field sensor is provided with a first detection structure, which generates a first electrical detection quantity as...
US20100060263 OFF-CENTER ANGLE MEASUREMENT SYSTEM  
An angle measurement system including a magnet coupled to a rotating member and adapted to provide a magnetic field which rotates with the rotating member about a rotational axis of the rotating...
US20090184706 SENSOR DEVICE WITH ADAPTIVE FIELD COMPENSATION  
The invention relates to a magnetic sensor device comprising an excitation wire for the generation of an alternating magnetic excitation field (Bi) and a GMR sensor (12) for sensing reaction...
US20080012552 Calibration device in magnetic sensor for inducting magnetic scale  
The disclosed invention is a calibration device in magnetic sensor for inducting a magnetic scale which primarily comprises: a sensor unit which includes a Hall sensor to produce square signals...
US20120143548 DYNAMICALLY SELF-ADJUSTING MAGNETOMETER  
A dynamically self-adjusting magnetometer is disclosed. In one embodiment, a first sample module periodically generates an electronic signal related to at least one magnetic field characteristic...
US20130257415 CIRCUITRY FOR AND A METHOD OF COMPENSATING DRIFT IN RESISTANCE IN EDDY CURRENT PROBES  
Disclosed is an eddy current non-destructive inspection device which includes an eddy current probe with a probe conductor resistance dynamically changing due to operation conditions, such as...
US20130015843 CURRENT SENSOR WITH CALIBRATION FOR A CURRENT DIVIDER CONFIGURATION  
An integrated circuit (IC) current sensor that self-calibrates to adjust its signal gain when employed in a current divider configuration is presented. The current sensor includes an integrated...
US20120235670 DRIVE SYSTEM FOR MICROMACHINED MAGNETIC FIELD SENSORS  
Described herein are systems, devices, and methods that provide a stable magnetometer. The magnetometer includes a drive element that facilitates flow of a drive current through a node and a sense...
US20130200882 METHODS AND DEVICES FOR DETECTING MAGNETIC INTERFERENCE AFFECTING THE OPERATION OF A MAGNETOMETER  
Methods and apparatus employing non-magnetometer navigational sensor data to assist in determining whether a change in a magnetic field detected by a magnetometer is likely due to a source of...
US20130151180 BATTERY MAGNETIC STATE OF CHARGE SENSOR CONTROL ALGORITHM  
A system and method for estimating the state-of-charge (SOC) of a battery cell in a vehicle using a magnetic sensor that measures changes in magnetism of the battery cell. The method provides an...
US20100231224 Method and system for calibrating streamer electrodes in a marine electromagnetic survey system  
A marine electromagnetic sensor system includes a sensor cable having at least one electromagnetic sensor thereon. A first calibration electrode is disposed on the cable on one side of the sensor....
US20150130443 MAGNETOMETER TEST ARRANGEMENT AND METHOD  
Manufacturing of magnetometer units employs a test socket having a substantially rigid body with a cavity therein holding an untested unit in a predetermined position proximate electrical...
US20120210562 MAGNETOMETER TEST ARRANGEMENT AND METHOD  
Manufacturing of magnetometer units (20′) employs a test socket (41) having a substantially rigid body (43) with a cavity (42) therein holding an untested unit (20) in a predetermined position...
US20090212765 MAGNETIC FIELD SENSOR WITH AUTOMATIC SENSITIVITY ADJUSTMENT  
Magnetic field sensors have a magnetic field sensing element and also a feedback circuit to provide a gain-adjustment signal to affect a sensitivity associated with the magnetic field sensing...
US20090243594 METHOD AND DEVICE FOR CHARACTERIZATION OF A MAGNETIC FIELD APPLIED TO A MAGNETIC SENSOR  
The present invention provides a magnetic sensor device comprising a plurality of magnetic sensor elements having a sensitive direction. At least one of the magnetic sensor elements (43) is...
US20080297181 Measuring Bridge Arrangement, Method of Testing a Measuring Bridge, Test Arrangement for Testing a Measuring Bridge, Method of Producing a Tested Measuring Bridge Arrangement, and Computer Program  
A measuring bridge arrangement has a measuring bridge with a first supply terminal and first and second measuring signal terminals. The measuring bridge arrangement has a working point adjustment...
US20090009156 Magnetic Sensor Device With Reference Unit  
The invention relates to a magnetic sensor device comprising excitation wires (11, 13) for generating a magnetic field (B) in a sample chamber (1) and a magnetic sensor element (12), for example a...
US20100171488 SYSTEM AND METHOD FOR MEASURING ALIGNMENT ERRORS OF AXLES  
The invention concerns a system for measuring the alignment error of two axles provided with a first and a second coupling part by means of a biaxial orthogonal magnetic sensor system comprising a...
US20100211347 Circuits and Methods for Generating a Self-Test of a Magnetic Field Sensor  
A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field...
US20120133356 AUTO-CALIBRATING A MAGNETIC FIELD SENSOR  
In one embodiment a method to compensate for the sensitivity drift of a magnetic field sensor for sensing a magnetic field comprises forming a reference magnetic field having first magnetic field...
US20150042318 MAGNETIC SENSOR TEST APPARATUS AND METHOD  
Provided are a magnetic sensor test apparatus and a magnetic sensor test method. The magnetic sensor test apparatus includes a vertical coil configured to generate a magnetic field and at least...
US20130300402 METHOD AND STRUCTURE FOR TESTING AND CALIBRATING THREE AXIS MAGNETIC FIELD SENSING DEVICES  
A structure and method are provided for self-test of a Z axis sensor. Two self-test current lines are symmetrically positioned adjacent, but equidistant from, each sense element. The vertical...
US20140070795 Hall Effect Device  
A hall effect device includes an active Hall region in a semiconductor substrate, and at least four terminal structures, each terminal structure including a switchable supply contact element and a...
US20120056615 Method and Apparatus for Defined Magnetizing of Permanently Magnetizable Elements and Magnetoresistive Sensor Structures  
An apparatus includes a sensor arrangement with a sensor chip. A magnetic field generator is configured to generate a secondary magnetic field opposing an external primary magnetic field at the...
US20130057256 METHOD FOR DETERMINING AN EXCITER CONDUCTOR SPACING FROM A MAGNETIC FIELD SENSOR, METHOD FOR CALIBRATING THE MAGNETIC FIELD SENSOR AS WELL AS CALIBRATABLE MAGNETIC FIELD SENSOR AND USAGE OF AN EXCITER CONDUCTOR STRUCTURE FOR DETERMINING AN EXCITER CONDUCTOR SPACING  
In determining an exciter conductor spacing of an exciter conductor of an exciter conductor structure from a sensor element of a calibratable magnetic field sensor, first and second electric...
US20130207644 MAGNETIC SENSOR APPARATUS  
A magnetic sensor apparatus includes a substrate, a plurality of magnetoresistance sensor units, a compensation coil and a reset coil. The magnetoresistance sensor units are disposed on the...
US20150028855 APPARATUS FOR TESTING MAGNETIC FIELD SENSOR ON WAFER AND METHOD THEREOF  
An apparatus and a method for testing a magnetic field sensor are provided, in which the method includes arranging a coil for generating a magnetic field, applying the magnetic field to the...
US20090315540 PRIMARY WINDINGS HAVING MULTIPLE PARALLEL EXTENDED PORTIONS  
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...
US20110248704 METHOD AND APPARATUS FOR CALIBRATING A MAGNETIC SENSOR  
In general, the invention relates to an algorithm and process for automated and/or continuous calibration of magnetic sensor, for example such as a sensor installed in a mobile positioning system...
US20100315068 APPARATUS AND METHOD FOR CALIBRATING A TRAMP METAL DETECTOR  
An apparatus for calibrating a metal detecting device of a materials processing line. A placement arm is provided to control the path of a calibrating sample in order to simulate movement of tramp...
US20090167295 PORTABLE ELECTRONIC DEVICE WITH ELECTRONIC COMPASS AND METHOD FOR CALIBRATING COMPASS  
A calibrating method for a portable electronic device having azimuth device such as an electronic compass is disclosed. The calibrating method can be achieved by checking at least one sensor in...
US20150115936 SIGNAL ERROR COMPENSATION FOR A MAGNETOMETER IN A SENSOR PACKAGE  
A device (50) includes a magnetometer (54) adapted to produce an output signal (30) indicative of a sensed magnetic field (38), a second sensor (24), and a processing unit (56) connected to each...
US20090001965 Magnetic-Field Sensor and Method of Calibrating a Magnetic-Field Sensor  
An embodiment of a magnetic-field sensor has a plurality of sensor elements connected to form measurement arrangements, each measurement arrangement having a measurement tap, and a control circuit...
US20100312494 PROCESS AND APPARATUS FOR TESTING A COMPONENT USING AN OMNI-DIRECTIONAL EDDY CURRENT PROBE  
A method for testing a component using an eddy current array probe is provided. The method includes calibrating the eddy current array probe, collecting data from the eddy current array probe for...
US20100194384 SYSTEM INCLUDING CIRCUIT THAT DETERMINES CALIBRATION VALUES  
A system including magnetic sensing elements and a circuit. The magnetic sensing elements are configured to sense a magnetic field that is generated via a current and to provide signals that...
US20080238410 AUTO-CALIBRATION OF MAGNETIC SENSOR  
The present invention provides a method to compensate for the sensitivity drift of a magnetic field sensor for sensing a magnetic field. The magnetic field sensor comprises at least four...
US20120062215 MAGNETIC-BALANCE-SYSTEM CURRENT SENSOR  
A magnetic-balance-system current sensor includes: a magnetoresistive element, a resistance value of the magnetoresistive element being changed by applying an induction magnetic field generated by...

Matches 51 - 100 out of 166 < 1 2 3 4 >