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Class Information
Number: 324/239
Name: Electricity: measuring and testing > Magnetic > With means to create magnetic field to test material > Induced voltage-type sensor
Description: Subject matter wherein a voltage is induced in an electrical coil as a result of the change in the magnetic test field caused by the material tested.

Sub-classes under this class:

Class Number Class Name Patents
324/240 Material flaw testing 417
324/243 Plural sensors 219

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

Patent Number Title Of Patent Date Issued
8704513 Shielded eddy current coils and methods for forming same on printed circuit boards Apr. 22, 2014
8680843 Magnetic field current sensors Mar. 25, 2014
8638091 Rotary eddy current testing probe device Jan. 28, 2014
8633686 Methods and apparatus for characterizing magnetic properties of materials Jan. 21, 2014
8610426 Carburization sensing method Dec. 17, 2013
8593138 Bearing residual life prediction method, bearing residual life diagnostic apparatus and bearing diagnostic system Nov. 26, 2013
8593137 Eddy current sensor and eddy current measurement method Nov. 26, 2013
8581579 Magneto electric sensor with injected up-conversion or down-conversion Nov. 12, 2013
8575923 Method and apparatus for special end area inspection Nov. 5, 2013
8560259 Dynamically self-adjusting magnetometer Oct. 15, 2013
8558537 Method to test the measurement accuracy of at least one magnetic field sensor using a semiconductor chip having a measurement coil Oct. 15, 2013
8513943 Apparatus, system, and method for scanning a surface Aug. 20, 2013
8508212 Calibration of non-contact current sensors Aug. 13, 2013
8493064 Apparatus, system, and method for maintaining normalcy of a sensor with respect to a structure Jul. 23, 2013
8432161 Frequency selection method and hardening depth measurement method of eddy current measurement Apr. 30, 2013
8395379 Inductive sensor for speed, rotational direction and position measurements in the high temperature range Mar. 12, 2013
8395378 Nondestructive robotic inspection method and system therefor Mar. 12, 2013
8378668 Method for non-destructive testing of composite systems Feb. 19, 2013
8368390 Vertical hall sensor and method for manufacturing a vertical hall sensor Feb. 5, 2013
8354842 Segmented magnetostrictive patch array transducer, apparatus for diagnosing structural fault by using the same, and method of operating the same Jan. 15, 2013
8339129 Vibration and condition monitoring system and the parts thereof Dec. 25, 2012
8324894 Resonant linearly polarized eddy current sensor Dec. 4, 2012
8325056 System for underwater communications comprising fluid modifying means Dec. 4, 2012
8319494 Pipeline inspection tool with double spiral EMAT sensor array Nov. 27, 2012
8294458 Vibration and condition monitoring system and the parts thereof Oct. 23, 2012
8294459 Multiple receiver coil dual mode electromagnetic detector Oct. 23, 2012
8278918 Method for operating of a metal detection system and metal detection system Oct. 2, 2012
8274278 Noncontact anhysteric curve plotter and static field to time-varying hysteresisgraph with integrated temperature chamber Sep. 25, 2012
8274280 Device and process for nondestructive and noncontact detection of faults in a test piece Sep. 25, 2012
8274282 Method for assembling a high-dynamic and high-spatial resolution eddy current testing head Sep. 25, 2012
8269488 Eddy current testing method, steel pipe or tube tested by the eddy current testing method, and eddy current testing apparatus for carrying out the eddy current testing method Sep. 18, 2012
8248065 Method and device for detecting structural abnormalities in a spherical particle Aug. 21, 2012
8237434 Electromagnetic system for biosensors Aug. 7, 2012
8228058 Eddy current flaw detection probe Jul. 24, 2012
8212553 Inspection mode switching circuit Jul. 3, 2012
8183859 Apparatus and method for calibrating a tramp metal detector May. 22, 2012
8180585 Magnetic crash sensor May. 15, 2012
8179132 Method and system for integrating eddy current inspection with a coordinate measuring device May. 15, 2012
8174259 Apparatus and method for determining magnetic properties of materials May. 8, 2012
8148976 Method and arrangement for the contactless inspection of moving electrically conductive substances Apr. 3, 2012
8133439 GMR biosensor with enhanced sensitivity Mar. 13, 2012
8129987 Multiple receiver coil dual mode electromagnetic detector Mar. 6, 2012
8125219 Method for determining and evaluating eddy-current displays, in particular cracks, in a test object made from an electrically conductive material Feb. 28, 2012
8098064 Speed filter calibration apparatus and method for radio frequency metal detectors Jan. 17, 2012
8088284 System and method for measuring the concentration of magnetic ballast in a moving slurry Jan. 3, 2012
8040128 Scanning susceptometer Oct. 18, 2011
8035941 DC/AC inverter substrate having voltage abnormality detector circuit Oct. 11, 2011
7997119 Chemical sampling and multi-function detection methods and apparatus Aug. 16, 2011
7999540 Eddy current apparatus and method for in-situ profile measurement Aug. 16, 2011
7994781 Eddy current sensor with concentric segments Aug. 9, 2011

1 2 3 4 5 6 7 8 9

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