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7626383 |
Apparatus and method for holding a rotatable eddy-current magnetic probe, and for rotating the probe around a boundary
An RFEC excitation unit and sensor apparatus and method that facilitate detection of cracks or other anomalies within or under a surface and immediately next to an expected structure (such as a...
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7622917 |
Methods and apparatus for inspecting materials
Apparatus and methods for inspecting materials such as cylindrical and tubular members are disclosed. One apparatus includes a frame that supports a magnetic coil and a detector assembly, the...
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7619408 |
Spatially resolved determination of magnetic particle anisotropy in an area of examination
Determination of at least one of physical, chemical and biological properties and parameters within an area of examination of an object of examination by introducing magnetic particles in at least...
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7613578 |
Method for noninvasive determination of a distribution of electrical current and apparatus for the same
A method of non-invasive determination of electrical current distribution is disclosed. The method utilizes mathematical calculations on data obtained by a probe with non-uniformly wound detection...
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7589526 |
Surface mounted sensor arrays having segmented primary windings
One of the issues with planar eddy-current sensors is the placement of the current return for the primary winding. Often the ends of the primary winding are spatially distant from one another,...
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7579831 |
Test device for tubular specimens
A test device for testing of tubular specimens has a plurality of individual, radially movable, finger-shaped test probes which are placed from all sides on the outside of the specimen to be...
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7576534 |
System and method to forecast the electrical conductivity of anodes for aluminum production before baking
The system ( 10 ) and the method are used for forecasting the electrical conductivity of an anode ( 12 ) for aluminum production before the anode ( 12 ) is baked. In the system ( 10 ), at least one...
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7574338 |
Finite-difference simulation and visualization of elastodynamics in time-evolving generalized curvilinear coordinates
Modeling and simulation of free and forced structural vibrations is essential to an overall structural health monitoring capability. In the various embodiments, a first principles finite-difference...
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7573261 |
Method and system for the generation of torsional guided waves using a ferromagnetic strip sensor
A method is shown for magnetostrictive testing of structures using a magnetostrictive strip and magnetostrictive techniques. A torsional guided wave is generated in the magnetostrictive strip which...
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7560920 |
Apparatus and method for eddy-current scanning of a surface to detect cracks and other defects
An apparatus having a plurality of coils (e.g., numerous thin-film coils formed in an array on a flex circuit), each coil acting as an excitation unit that generates an alternating excitation...
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7557570 |
System and method for producing color contour maps of surface defects of high pressure pipelines
A system for mapping a surface defect in an electrically-conducting material by measuring a change in the resonance of the material includes a flexible printed circuit board and a two dimensional...
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7533575 |
Quasistatic magnetic and electric field stress/strain gages
Magnetic or electric field sensors are mounted against a material surface and used for stress, strain, and load monitoring of rotating components such as vehicle drive trains. The stationary...
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7528598 |
Fastener and fitting based sensing methods
Damage and usage conditions in the vicinity of fasteners in joined structures are nondestructively evaluated using the fasteners themselves. Sensors or sensor conductors are embedded in the...
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7519487 |
System and method for depth determination of cracks in conducting structures
The alternating current potential drop ACPD technique is used to monitor surface cracks in electrical conductors. At high frequencies, the current flows in a superficial skin layer. Two distinct...
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7518360 |
Hybrid wound/etched winding constructs for scanning and monitoring
Combined wound and micro-fabricated winding constructs are described for the inspection of materials and the detection and characterization of hidden features or flaws. These constructs can be...
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7518359 |
Inspection of non-planar parts using multifrequency eddy current with phase analysis
A non-planar part has a non-planar surface such as an edge, and may contain an anomaly such as a crack. The non-planar part is inspected using an eddy current technique. The method includes...
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7501814 |
Apparatus and method for second-layer through-bushing inspection of aircraft wing attachment fittings using electric current perturbation
A device and methods for using the device, that permit the rapid and accurate inspection of aircraft wing attachment fittings, including those wing to fuselage attachments modified according to a...
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7489129 |
Method and system for the detection of surface defects on a metal product as it is being continuously cast
The invention relates to a method of detecting surface defects on a continuously-cast crude metallic product, such as a steel slab ( 4 ). According to the invention, a sensor ( 10 ) is used to...
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7474092 |
Method and device for long-range guided-wave inspection of fire side of waterwall tubes in boilers
Methods and devices for inspecting waterwall tubes for the detection of fire side damage over a long length of the tube are described. The system of the invention uses a magnetostrictive strip and...
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7459916 |
Electromagnetic shielding defect monitoring system and method for using the same
An embodiment disclosed herein is directed to an electromagnetic shielding defect monitoring system that includes a transmit system adapted to transmit a first electromagnetic field toward a first...
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RE40515 |
Method and apparatus for inspecting pipelines from an in-line inspection vehicle using magnetostrictive probes
A method and system for implementing magnetostrictive sensor techniques for the nondestructive evaluation of pipeline structures. The system consists of a magnetostrictive sensor instrument unit, a...
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7423424 |
Method and apparatus for the non-destructive and contactless detection of faults in a test piece which is moved relative to a probe
Method for nondestructive and contact-free detection of faults in a test specimen which is moved relative to a probe that detects a periodic electrical signal having a carrier oscillation whose...
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7412359 |
Mutual immittance calculation program, mutual immittance calculation apparatus and method, and electromagnetic-field strength calculation program
In a mutual immittance calculation apparatus, an input section inputs data of a model of an electric circuit apparatus, being a target for analysis of the electromagnetic-field strength and being...
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7410033 |
Electrical connector and restraining device for use with elevator belts
A device ( 30 ) for making electrically conductive contact with at least one tension member in an elevator belt ( 22 ) also provides a restraining feature to support loads on the belt. A connector...
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7397238 |
Methods and apparatus for inspecting materials
Apparatus and methods for inspecting materials such as cylindrical and tubular members are disclosed. One apparatus includes a frame that supports a magnetic coil and a detector assembly, the...
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7388370 |
Magnetic crash sensor
At least one time-varying signal is applied to a plurality of coil elements in cooperative relationship with and spanning different portions of a vehicle. The coil elements generate an associated...
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7368907 |
Omni-directional electric current perturbation probe
An electric current perturbation probe includes at least one driver coil and at least one receiver. The at least one driver coil produces an omni-directional magnetic field. The at least one...
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7358721 |
Eddy current flaw detection sensor and method
An eddy current flaw detection sensor is provided which can detect a circumferential crack occurring at the deformed portion or peripheral portion thereof of a heat transfer tube with a high degree...
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7355395 |
Method and apparatus for eddy current-based quality inspection of dry electrode structure
A system for non-destructive non-contact quality inspection of dry electrode units of energy storage includes an eddy current-based inspection system having a conveyor belt, and a hollow dielectric...
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7352176 |
Rotating concave eddy current probe
A rotating concave eddy current probe for detecting fatigue cracks hidden from view underneath the head of a raised head fastener, such as a buttonhead-type rivet, used to join together structural...
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7348771 |
Method for verifying sensor condition
Sensor condition verification may be performed on electromagnetic sensors and sensor arrays mounted to a material surface. The sensors typically have a periodic winding or electrode structure that...
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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 AN INTER-POLE AREA
A magnetic non-destructive method and an apparatus for measurement of cross sectional area of elongated ferrous objects such as steel wire ropes and for detecting local flaws is disclosed. A...
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7312608 |
Systems and methods for inspecting electrical conductivity in composite materials
Systems and methods for inspecting electrical conductivity in composite materials having conductive structures are disclosed. In one embodiment, a system of inspecting electrical conductivity in an...
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7301335 |
Apparatus and method for eddy-current magnetic scanning a surface to detect sub-surface cracks around a boundary
An RFEC excitation unit and sensor apparatus and method that facilitate detection of cracks or other anomalies within or under a surface and immediately next to an expected structure (such as a...
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7295004 |
Eddy current probe and method of manufacture thereof
An eddy current probe includes a plurality of deformable substrates each having a pair of coils wound coaxially thereabout in spaced relation and a housing supporting said plurality of substrates...
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7295003 |
Non-destructive testing system and method utilizing a magnetic field to identify defects in a layer of a laminated material
Techniques for detecting defects in the proximity of a hole of a laminate structure include inserting a generally cylindrical body portion into a hole such that a first coil of wire will reside in...
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7292029 |
Method for detecting substructure
A method for detecting substructure includes the steps of: nondestructively scanning an assembly using a substructure scanning system including a precision motion carriage and a nondestructive...
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7268541 |
Detecting failures of flexible multistrand steel structures
A flexible elongate structure, such as a flexible riser ( 10 ), comprising at least one layer ( 20 ) of steel wires near the surface which extend at least partly along the length of the structure,...
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7256577 |
High frequency rotary eddy current probe device
An eddy current detection system configured in accordance with an example embodiment of the invention employs a high frequency rotary eddy current probe that is capable of detecting very shallow...
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7248043 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Method and apparatus for eddy current-based quality inspection of dry electrode structure
A system for non-destructive non-contact quality inspection of dry electrode units of energy storage includes an eddy current-based inspection system having a conveyor belt, and a hollow dielectric...
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7230421 |
Damage standard fabrication with attached sensor
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...
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7218102 |
Pipeline inspection apparatus and method
A apparatus for pipeline integrity monitoring comprising a magnetically permeable backing bar and at least three magnets comprising a relatively medium-strength magnet positioned at one end of the...
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7215118 |
Transducer for generating and measuring torsional waves, and apparatus and method for structural diagnosis using the same
A method and an apparatus for structural diagnosis, which generates torsional waves upon a shaft, beam or pipe having arbitrary cross-sections, such as a circular cross-section, and senses...
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7176678 |
Method and apparatus for measuring a thickness of a nonconductive coating and calibrating a thickness measurement gauge
A method and apparatus are provided for measuring a thickness of a nonconductive coating disposed over portions of first and second conductive surfaces that intersect at an intersection angle. The...
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7171314 |
Methods and systems for analyzing structural test data
Systems and methods for analyzing structural test data are disclosed. In one embodiment, a method includes applying a sequence of loads to a test article, receiving raw test data indicative of the...
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7161351 |
Hidden feature characterization using a database of sensor responses
Quasistatic sensor responses may be converted into multiple model parameters to characterize hidden properties of a material. Methods of conversion use databases of responses and, in some cases,...
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7161350 |
Method for material property monitoring with perforated, surface mounted sensors
Material condition monitoring may be performed by electromagnetic sensors and sensor arrays mounted to the material surface. The sensors typically have a periodic winding or electrode structure...
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7145329 |
Manually operated working tool
The present invention relates to a manually operated working tool such as an internal combustion operated setting tool for driving in fastening elements such as nails, bolts, pins into a...
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7109702 |
Non-destructive inspection method
A non-destructive inspection includes: magnetizing a target by a first magnetostatic field (S 2 ); shutting off the magnetostatic field (S 3 ); measuring, at measurement points, the transient...
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7106055 |
Fabrication of samples having predetermined material conditions
Fabrication of samples having material conditions or damage representative of actual components inspected by nondestructive testing involves sensors placed near or mounted on the material surface,...
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