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Class Information
Number: 324/242
Name: Electricity: measuring and testing > Magnetic > With means to create magnetic field to test material > Induced voltage-type sensor > Material flaw testing > Plural sensors
Description: Subject matter wherein there are two or more magnetic coil sensors of the magnetic field modified by the test material, the apparatus to indicate the sensing of the field modified by the test material being connected to two or more of the sensors to indicate the combined sensing of the material-modified field.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7589526 |
Surface mounted sensor arrays having segmented primary windings |
Sep. 15, 2009 |
| 7576534 |
System and method to forecast the electrical conductivity of anodes for aluminum production before baking |
Aug. 18, 2009 |
| 7560920 |
Apparatus and method for eddy-current scanning of a surface to detect cracks and other defects |
Jul. 14, 2009 |
| 7533575 |
Quasistatic magnetic and electric field stress/strain gages |
May. 19, 2009 |
| 7528599 |
Eddy current probe |
May. 5, 2009 |
| 7528598 |
Fastener and fitting based sensing methods |
May. 5, 2009 |
| 7518360 |
Hybrid wound/etched winding constructs for scanning and monitoring |
Apr. 14, 2009 |
| 7489128 |
MRI protector |
Feb. 10, 2009 |
| 7411390 |
High resolution inductive sensor arrays for UXO |
Aug. 12, 2008 |
| 7405558 |
Steam generator mapping with reflections of eddy current signal |
Jul. 29, 2008 |
| 7385392 |
Eddy current sensing arrays and system |
Jun. 10, 2008 |
| 7358721 |
Eddy current flaw detection sensor and method |
Apr. 15, 2008 |
| 7352176 |
Rotating concave eddy current probe |
Apr. 1, 2008 |
| RE40166 |
MAGNETIC NON-DESTRUCTIVE METHOD AND APPARATUS FOR MEASUREMENT OF CROSS SECTIONAL AREA AND DETECTION OF LOCAL FLAWS IN ELONGATED FERROUS OBJECTS IN RESPONSE TO LONGITUDINALLY SPACED SENSORS IN |
Mar. 25, 2008 |
| 7301335 |
Apparatus and method for eddy-current magnetic scanning a surface to detect sub-surface cracks around a boundary |
Nov. 27, 2007 |
| 7256577 |
High frequency rotary eddy current probe device |
Aug. 14, 2007 |
| 7242186 |
Device for testing a test specimen for surface faults by magnetization means and by means of induction probes as measurement sensors |
Jul. 10, 2007 |
| 7242201 |
Apparatus and method for detecting state of heat exchanger tube |
Jul. 10, 2007 |
| 7218102 |
Pipeline inspection apparatus and method |
May. 15, 2007 |
| 7161351 |
Hidden feature characterization using a database of sensor responses |
Jan. 9, 2007 |
| 7154265 |
Eddy current probe and inspection method |
Dec. 26, 2006 |
| 7135867 |
Method and apparatus for verifying connectivity of an instrumentation system |
Nov. 14, 2006 |
| 7109702 |
Non-destructive inspection method |
Sep. 19, 2006 |
| RE39206 |
Absolute property measurement with air calibration |
Jul. 25, 2006 |
| 7071685 |
Induction sensor using printed circuit |
Jul. 4, 2006 |
| 7049811 |
Test circuit having parallel drive segments and a plurality of sense elements |
May. 23, 2006 |
| 7026811 |
Methods and apparatus for eddy current inspection of metallic posts |
Apr. 11, 2006 |
| 7005851 |
Methods and apparatus for inspection utilizing pulsed eddy current |
Feb. 28, 2006 |
| 6952095 |
Surface mounted and scanning spatially periodic eddy-current sensor arrays |
Oct. 4, 2005 |
| 6946833 |
Polar coordinates sensor having an improved flux suspension system and excitation method |
Sep. 20, 2005 |
| 6933717 |
Sensors and probes for mapping electromagnetic fields |
Aug. 23, 2005 |
| 6933718 |
Quantification method and system for corrosion and damage assessment |
Aug. 23, 2005 |
| 6914427 |
Eddy current probe having sensing elements defined by first and second elongated coils and an associated inspection method |
Jul. 5, 2005 |
| 6911826 |
Pulsed eddy current sensor probes and inspection methods |
Jun. 28, 2005 |
| 6888347 |
Omnidirectional eddy current probes, array probes, and inspection systems |
May. 3, 2005 |
| 6885277 |
Externally adjustable impedance transformer |
Apr. 26, 2005 |
| 6873152 |
Differential sensor apparatus and method for laminated core fault detection |
Mar. 29, 2005 |
| 6815957 |
Method and device for inspecting laminated iron cores of electrical machines for interlamination shorts |
Nov. 9, 2004 |
| 6812697 |
Molded eddy current array probe |
Nov. 2, 2004 |
| 6798198 |
Fluid supports for sensors |
Sep. 28, 2004 |
| 6798197 |
Dynamic gain control in a digital eddy current signal processor |
Sep. 28, 2004 |
| 6791319 |
Eddy current probe with transverse polygonal detecting coil |
Sep. 14, 2004 |
| 6784662 |
Eddy current sensor arrays having drive windings with extended portions |
Aug. 31, 2004 |
| 6781370 |
Testing device for detecting and determining material inhomogeneities |
Aug. 24, 2004 |
| 6774627 |
Leak magnetism detection sensor for magnetic flaw detection system |
Aug. 10, 2004 |
| 6734669 |
Digital demodulation of an eddy current signal |
May. 11, 2004 |
| 6727691 |
High resolution inductive sensor arrays for material and defect characterization of welds |
Apr. 27, 2004 |
| 6727690 |
Test method for determining imminent failure in metals |
Apr. 27, 2004 |
| 6720775 |
Pulsed eddy current two-dimensional sensor array inspection probe and system |
Apr. 13, 2004 |
| 6710595 |
Discretized magnetic field in eddy current probe |
Mar. 23, 2004 |
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