Matches 1 - 50 out of 166 1 2 3 4 >


Match Document Document Title
US20130076343 NON-CONTACT CURRENT AND VOLTAGE SENSING CLAMP  
A clamping current and voltage sensor provides an isolated and convenient technique for measuring current passing through a conductor such as an AC branch circuit wire, as well as providing an...
US20130320965 System and Method for Operating a Mobile Device having a Magnetometer  
A method and system are provided for operating a mobile device having a magnetometer. The method includes obtaining a plurality of error indicators associated with the magnetometer. At least two...
US20120101762 System and Method for Calibrating a Magnetometer Using Partial and Full Calibrations  
A method and system are provided for calibrating a magnetometer. The method comprises obtaining a plurality of magnetometer sensor readings; storing sensor readings from the plurality of obtained...
US20120098524 System and Method for Performing a Background Calibration for a Magnetometer  
A method and system are provided for performing a background calibration of a magnetometer. The method comprises obtaining a plurality of magnetometer readings; applying an active set of...
US20120101766 System and Method for Determining Quality of Calibration Parameters for a Magnetometer  
A method and system are provided for calibrating a magnetometer. The method comprises applying at least one first test to a new set of calibration parameters; accepting the new set of calibration...
US20120096921 System and Method for Calibrating a Magnetometer According to a Quality Threshold  
A method and system are provided for calibrating a magnetometer. The method comprises determining a current quality level associated with magnetometer readings obtained using an active set of...
US20130314075 OFFSET ERROR COMPENSATION SYSTEMS AND METHODS IN SENSORS  
Embodiments relate to reducing offset error in sensor systems. In embodiments, the sensitivity and offset of a sensor depend differently on some parameter, e.g. voltage, such that operating the...
US20060103382 Spin stand having hydrodynamic bearing motor and head/disc test device  
There is provided a compact, lightweight, inexpensive head/disk test device. A spin stand is provided that supports a magnetic head to enable attaching and removal and comprises a fluid dynamic...
US20140208821 In-Situ System Calibration  
A method for re-calibrating installed downhole sensors used in hydrocarbon wells by the application of a calibration string inserted in the wells and deployed in close proximity to the installed...
US20120098525 System and Method for Calibrating a Magnetometer According to Device States  
A method and system are provided for calibrating a magnetometer. The method comprises detecting a change in a physical configuration of the mobile device; applying at least one stored calibration...
US20150192440 Systems and Methods for Initiating Calibration of a Sensor  
A device having a sensor may be calibrated by obtaining a condition of a device incorporating the sensor and initiating a calibration operation for the sensor based, at least in part, on the...
US20120206129 SYSTEM AND METHOD FOR CALIBRATING A MAGNETOMETER WITH VISUAL AFFORDANCE  
A method and system are provided for calibrating a magnetometer of a mobile device. The method comprises displaying a visual indication of a gestural path on a display of the portable electronic...
US20130320964 System and Method for Calibrating a Magnetometer on a Mobile Device  
A method and system are provided for calibrating a magnetometer on a mobile device. The method includes initiating a calibration of the magnetometer, determining an intermediate parameter...
US20120274315 Rotation Angle Measurement Assembly  
An assembly is provided comprising a member having a graduated edge that varies in radius with respect to an axis, and a sensor adjacent to the graduated edge, the member and the sensor are...
US20130320966 System and Method for Calibrating a Magnetometer on a Mobile Device  
A method and system are provided for calibrating a magnetometer on a mobile device. The method includes obtaining one or more pairs of magnetometer readings. Each pair includes a first reading and...
US20140184200 METHODS AND APPARATUS FOR A CURRENT SENSOR HAVING FAULT DETECTION AND SELF TEST FUNCTIONALITY  
Methods and apparatus for an integrated circuit having a magnetic sensing element, a fault detection module including circuitry to detect a fault condition and to self-test operation of the...
US20070139037 Device for Testing Magnetic Speed and Proximity Sensors Used with Rotating Machinery  
A testing device for testing Hall-Effect type speed and proximity sensors and their associated pulse detection systems is provided by the present invention. The device includes a housing...
US20140188422 CALBRATION OF A SENSOR ASSEMBLY FOR USE IN MEDICAL POSITION/ORIENTATION TRACKING  
A position and orientation system and method is provided. A magnetoresistance sensor is provided having a sensor array configured to measure magnetic fields and a metallic coil positioned within...
US20120086438 Magnetometer Calibration  
A real-time calibration system and method for a mobile device having an onboard magnetometer uses an estimator to estimate magnetometer calibration parameters and a magnetic field external to the...
US20120330133 NONSURGICAL DETERMINATION OF ORGAN TRANSPLANT CONDITION  
A Superconducting Quantum Interference Device (SQUID) magnetic sensor system and method can image organic transplant condition, such as status, acceptance, or rejection, in-vivo. This represents a...
US20150108967 Methods and Systems Relating to AC Current Measurements  
Accurate measurements of electrical power at various points of a power grid is becoming more important and, at the same time, is getting more difficult as the old power distribution model of a...
US20150042319 MAGNETIC SENSOR  
A TMR element and a corrective AMR element are series-connected between a power supply and a ground. The resistance value of the corrective AMR element is set so as to offset an output error in...
US20140145710 SYSTEM FOR CALIBRATING AND MEASURING MECHANICAL STRESS IN AT LEAST A PART OF A RAIL  
The invention relates to a system for calibrating and measuring the magnetizability of at least a part of a rail, for instance a rail for guiding means of transport. The system includes a magnetic...
US20080204000 UNIVERSAL INSTRUMENT CALIBRATION SYSTEM AND METHOD OF USE  
Certain embodiments of the present invention provide systems and methods for electromagnetic calibration of an instrument. Certain embodiments provide an electromagnetic instrument calibration...
US20150097552 CALIBRATION CORRELATION FOR CALIBRATION ASSEMBLY HAVING ELECTROMAGNETIC READ HEAD  
According to one embodiment a method of performing a calibration correlation test for a calibration assembly includes sweeping a head module having a magnetic read sensor along a y-axis of the...
US20130338956 MAGNETIC SENSORS  
A governing circuit for a magneto-transistor is disclosed. The magneto-transistor comprising a first and second collector. At least one emitter and at least one base. The governing circuit is...
US20150192644 READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATED READING METHOD  
A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an...
US20120153936 READING CIRCUIT FOR A MAGNETIC FIELD SENSOR WITH SENSITIVITY CALIBRATION, AND RELATED READING METHOD  
A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an...
US20120274314 Circuits and Methods for Self-Calibrating or Self-Testing a Magnetic Field Sensor  
A magnetic field sensor includes a reference-field-sensing circuit channel that allows a calibration or a self-test of the circuitry of the magnetic field sensor. The magnetic field sensor can...
US20140300348 Magnetometer with Dual Purpose Reset and Calibration Coil  
The present invention discloses a magnetic field sensing device that utilizes a single coil for calibrating the response of the sensor to compensate for temperature dependent sensitivity drift and...
US20110218940 Parking Meter System  
A parking system uses a three-dimensional magnetic field sensor as part of a vehicle detector to monitor plural parking spaces. The detector is calibrated to detect the presence or absence of a...
US20120280675 Calibration Assembly for Aide in Detection of Analytes with Electromagnetic Read-Write Heads  
Described are embodiments to ensure that the equipment utilized to detect antigens is reliable and accurate. Accordingly, one embodiment of the invention includes a calibration assembly having...
US20110187350 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...
US20090295373 INTEGRATED CIRCUIT WITH TRACKING LOGIC  
An integrated circuit including an amplifier and a first circuit. The amplifier is configured to receive a sensed signal and provide an amplified signal. The first circuit is configured to track a...
US20140312883 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...
US20130134965 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...
US20150100264 RESOLVER CALIBRATION FOR PERMANENT MAGNET SYNCHRONOUS MOTOR  
The present invention relates to resolver calibration for permanent magnet synchronous motor. According to embodiments of the present invention, the high frequency rotating voltage vector is...
US20090039877 EDDY CURRENT SYSTEM AND METHOD FOR ESTIMATING MATERIAL PROPERTIES OF PARTS  
A method of inspecting a test part is provided. The method includes positioning an eddy current probe on a surface of the test part and scanning the test part using the eddy current probe to...
US20140091784 Artificial Defect for Eddy Current Inspection  
A flex circuit for creating artificial defects uses a thin conductive layer with rectangular slots therein representing defects. A thin insulating over-layer is used to protect the conductive...
US20130335066 Circuits and Methods for Generating a Diagnostic Mode of Operation in a Magnetic Field Sensor  
A magnetic field sensor includes a diagnostic circuit that allows a self-test of most of, or all of, the circuitry of the magnetic field sensor, including a self-test of a magnetic field sensing...
US20100050731 ANGLE MEASUREMENT SYSTEM  
An angular position measurement system including a continuous angular position sensor configured to provide a first signal representative of a continuous angular position of a rotating shaft, an...
US20120068692 Systems and Methods for Measuring Electrical Power Usage in a Structure and Systems and Methods of Calibrating the Same  
Some embodiments can concern a method of using a power consumption measurement device. The power consumption measurement device can be mechanically coupled to a surface of a circuit breaker box...
US20130093412 AUTONOMOUSLY CALIBRATED MAGNETIC FIELD SENSOR  
Magnetic field sensor including a magnetic field sensing circuit (2) comprising a reference magnetic field generator (8) and a magnetic field sensing cell (6), and a signal processing circuit (4)...
US20110037458 Open loop magneto-resistive magnetic field sensor  
An apparatus and a general method to measure a magnetic field using magneto-resistive sensors in an open-loop configuration are disclosed. A key feature is the regular in-situ normalization of the...
US20120293164 MAGNETORESISTANCE SENSOR WITH BUILT-IN SELF-TEST AND DEVICE CONFIGURING ABILITY AND METHOD FOR MANUFACTURING SAME  
A magnetoresistance sensor includes a multifunctional circuit structure having the functionality of built-in self-testing and/or device configuration. The magnetoresistance sensor further includes...
US20130063132 LINEAR POSITION SENSOR  
In general, the disclosure is directed to techniques for determining the position of a piston within a linear actuator, such as a hydraulic cylinder, in a more cost effective and less...
US20110301897 CALIBRATION OF A TRIAXIAL MAGNETIC FIELD SENSOR  
A method for calibrating a triaxial magnetic field sensor includes steps for determining an offset of recorded measured values of the magnetic field sensor using a superposed signal and for...
US20100308800 MEASURING ALTERNATING CURRENT FLOWING THROUGH AN ELECTRICITY SUPPLY DISTRIBUTION UNIT  
An apparatus (100) adapted to measure Alternating Current flowing through an electricity supply distribution unit (204) having a plurality of distribution cables (202). The apparatus (100)...
US20120166122 READING CIRCUIT WITH AUTOMATIC OFFSET COMPENSATION FOR A MAGNETIC-FIELD SENSOR, AND RELATED READING METHOD WITH AUTOMATIC OFFSET COMPENSATION  
A method for reading a magnetic-field sensor provided with at least one first magnetoresistive element envisages generation of an output signal, indicative of a magnetic field, as a function of a...
US20090072815 CALIBRATION OF A MAGNETIC SENSOR DEVICE  
The invention relates to the calibration of the magnetic sensor device comprising magnetic excitation wires (11, 13) and a magnetic sensor element, for example a GMR sensor (12), for measuring...

Matches 1 - 50 out of 166 1 2 3 4 >