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Class Information
Number: 324/260
Name: Electricity: measuring and testing > Magnetic > Magnetic field detection devices
Description: Subject matter which includes magnetic field sensing devices, per se, which are not classified elsewhere.

Sub-classes under this class:

Class Number Class Name Patents
324/261 With support for article 91

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8692546 Circuits and methods for generating a diagnostic mode of operation in a magnetic field sensor Apr. 8, 2014
8686715 Impedance compensation method for giant magneto-impedance magnetic sensors to null out the terrestrial residual magnetic field Apr. 1, 2014
8688407 Method, device and computer program product for magnetic tamper detection in a meter Apr. 1, 2014
8680855 Apparatus for measuring magnetic field of microwave-assisted head Mar. 25, 2014
8680846 Circuits and methods for self-calibrating or self-testing a magnetic field sensor Mar. 25, 2014
8680843 Magnetic field current sensors Mar. 25, 2014
8653812 Sheet identifying apparatus, image reading system, sheet shredding system, non-transitory computer-readable medium, and sheet indentifying method Feb. 18, 2014
8653813 Magnetic field vector sensor Feb. 18, 2014
8653814 Housing for a magnetometer, a combination including a magnetometer within a waterproof housing, and a system and method for location and removal of unexploded ordinance underwater Feb. 18, 2014
8610429 Magnetic field sensor device Dec. 17, 2013
8587301 Method for operating a metal detection system and metal detection system Nov. 19, 2013
8575921 Position indicator apparatus and method Nov. 5, 2013
8575926 Planar magnetic field probe Nov. 5, 2013
8575931 Length measurement apparatus Nov. 5, 2013
8564250 Current sensor Oct. 22, 2013
8547086 Coercivity performance determination device for coercivity distribution magnet Oct. 1, 2013
8542010 Circuits and methods for generating a diagnostic mode of operation in a magnetic field sensor Sep. 24, 2013
8518734 Process integration of a single chip three axis magnetic field sensor Aug. 27, 2013
8493062 Method for determining coercivity of coercivity distribution magnet Jul. 23, 2013
8494793 Structure of a magnetic-field gradient sensor and process for fabricating it in integrated technology Jul. 23, 2013
8487605 Global severe lightning storm locator Jul. 16, 2013
8486334 Magnetic sensor Jul. 16, 2013
8476900 Electromagnetic detection apparatus and methods Jul. 2, 2013
8456160 Three axis field monitor Jun. 4, 2013
8450997 Electromagnetic position and orientation sensing system May. 28, 2013
8441255 Thermocooling of GMR sensors May. 14, 2013
8436608 Eddy current inspection system and method May. 7, 2013
8432163 Method for low frequency noise cancellation in magneto-resistive mixed sensors Apr. 30, 2013
8432164 Ferromagnetic resonance and memory effect in magnetic composite materials Apr. 30, 2013
8427163 Spot indicating metal detector apparatus Apr. 23, 2013
8421453 Magnetic field sensor array for measuring spatial components of a magnetic field Apr. 16, 2013
8415948 Current sensor Apr. 9, 2013
8395382 Non-linear magnetic field sensors and current sensors Mar. 12, 2013
8390283 Three axis magnetic field sensor Mar. 5, 2013
8391949 Systems and methods for determining the electrical activity of a material Mar. 5, 2013
8378836 Magnetic field strength threshold alarm Feb. 19, 2013
8368555 Utility network interface device configured to detect and report abnormal operating condition Feb. 5, 2013
8310230 Method and device for sensing microwave magnetic field polarization components Nov. 13, 2012
8305232 Utility network interface device configured to detect and report abnormal operating condition Nov. 6, 2012
8299786 Axially symmetric vertical magnetic field component exciting sensor system Oct. 30, 2012
8294458 Vibration and condition monitoring system and the parts thereof Oct. 23, 2012
8296088 Systems and methods for performing measurements of one or more materials Oct. 23, 2012
8274278 Noncontact anhysteric curve plotter and static field to time-varying hysteresisgraph with integrated temperature chamber Sep. 25, 2012
8269490 Magnetic surface acoustic wave sensor apparatus and method Sep. 18, 2012
8258778 Simplified micro-magnetic sensor for acceleration, position, tilt, and vibration Sep. 4, 2012
8248018 Motor controller, motor control system, and washing machine Aug. 21, 2012
8242776 Magnetic sensor design for suppression of barkhausen noise Aug. 14, 2012
8237429 Method and device for measuring the pole orientation angle of a magnetic levitation vehicle on a magnetic levitation track Aug. 7, 2012
8228055 Apparatus and method for measuring critical current properties of a coated conductor Jul. 24, 2012
8222898 Method and apparatus for utilizing magnetic field modulation to increase the operating frequency of sensors Jul. 17, 2012

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