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Class 324/219 - Magnetic sensor within material


Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter wherein the apparatus to sense a magnetic
No. of patents: 83
Last issue date: 05/29/2012


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NumberTitleIssue Date
8188731Control system including a control circuit and sensor, and method for operation of the control system
A controller includes a control circuit. The control circuit includes a forward path that includes an input and an output, a feedback path coupled to the output and to the input, and a sensor that is between the input and the output. The sensor generates a sensor si...
05/29/2012
7466126Universal sensor probe with adjustable members configured to fit between a plurality of slot openings of varying widths
An aspect of the invention is directed to a variable sensor head for use in multiple electric machines with varying slot openings comprising a ferromagnetic core; a first adjustable portion and a second adjustable portion positioned in communication with the ferroma...
12/16/2008
7397111Semiconductor wafer, an electronic component, and a component carrier for producing the electronic component
An electronic component includes a semiconductor chip with a chip topside, an integrated circuit, and a chip backside. The chip backside includes a magnetic layer. The electronic component further includes a chip carrier with a magnetic layer on its carrier topside....
07/08/2008
7375406Thermoplastic overmolding for small package turbocharger speed sensor
A sensor package apparatus includes a lead frame substrate that supports one or more electrical components, which are connected to and located on the lead frame substrate. A plurality of wire bonds are also provided, which electrically connect the electrical compone...
05/20/2008
7316076Coordinate measuring device and a method for measuring the position of an object
A coordinate measuring device having a probe for contacting the object (15) to be measured. The probe comprises a sensing member (18) for contacting the object (15), a support unit (13), a supporting element (25) connecting said se...
01/08/2008
7295004Eddy 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 adjacent to each other with each substrate compressed in a direction l...
11/13/2007
7295003Non-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 a plane substantially parallel to a first electrically conductive lay...
11/13/2007
7256576ID-OD discrimination sensor
A sensor body for use in a pig for determining characteristics of a pipeline wall though which the pig passes includes a circuit board and a single coil wrapped around the circuit board. A microcontroller is mounted to the circuit board and connected to the single c...
08/14/2007
7231325System for evaluating a sensor signal
The inventive device for evaluating the sensor signal includes the provider for providing the sensor signal, the processor for processing the sensor signal and for providing an information signal comprising information regarding the amplitude course of the sensor si...
06/12/2007
7218101Eddy current method of inspecting a pressure vessel shell
A pressure vessel penetration sidewall adjacent a tube installed in the penetration by a clearance fit is inspected by passing an eddy current probe having a pair of circumferential coils through the tube. Eddy currents are induced in the pressure vessel as the prob...
05/15/2007
7190162Methods and apparatus for inspecting a component
A method for inspecting a gas turbine engine rotor disk, wherein the rotor disk includes a plurality of dovetail slots, includes providing a probe assembly including an eddy current probe and a probe fixture, wherein the eddy current probe includes a body portion an...
03/13/2007
7183764Method for inspecting a channel using a flexible sensor
Described are methods for pressurizing elastic support structures or balloons in sensor probes used for the inspection of components having areas of limited access. When inflated, the balloons press flexible sensors against the surface of the material under test. Wh...
02/27/2007
7154264System and method using a collapsable coil for inspection of pipelines having internal restrictions
The system and method provides a means for inspecting pipelines that have obstructions which prevent conventional inspection pigs from passing the obstructions. The invention uses remote-field eddy current inspection techniques and a uniquely configured excitation c...
12/26/2006
7140254Apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact
An apparatus for generating and measuring bending vibration in a pipe buried underground or a pipe covered by insulating materials is disclosed. There is provided an apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physica...
11/28/2006
7026811Methods and apparatus for eddy current inspection of metallic posts
An apparatus for inspecting a metallic post contoured in a single dimension for defects. The apparatus has a clamp having at least one jaw with a surface conforming to the contour to the metallic post. The conforming jaw or jaws also have a plurality of eddy current...
04/11/2006
6972561Internal eddy current inspection
An eddy current inspection apparatus includes a holder for a specimen, a holder for an eddy current probe, and an eddy current instrument operatively joined thereto. The probe holder includes carriages for translating the probe along first and second axes. The probe...
12/06/2005
6952094Nondestructive inspection method and system therefor
A method and system for inspecting a turbine wheel having axial slots along a perimeter thereof that are configured for mating with and securing airfoil members to the perimeter of the wheel, and an annular slot that intersects the axial slots. The method and system...
10/04/2005
6798198Fluid supports for sensors
Pressurized elastic support structures or balloons are used to press flexible sensors against the surface a material under test. Rigid support elements can also be incorporated into the inspection devices to maintain the basic shape of the inspection structure and t...
09/28/2004
6696830Method and inspection standard for eddy current inspection
A method for inspecting a metallic component comprises providing an inspection standard having an eddy current signature substantially similar to an eddy current signature of the metallic component, wherein the inspection standard body is fabricated from ...
02/24/2004
6611142Apparatus and method of measuring the multi-dimensional magnetic field distribution of a magnetic sample in real-time
An apparatus for measuring the magnetic field distribution of a magnetic sample includes a magnetic field sensor arrangement having three, orthogonally-disposed, Hall sensors for sensing the magnetic field produced by a magnetic sample at a given location...
08/26/2003
6608478Rotor slot bottom inspection apparatus and method
A rotor disk is inspected using an inspection apparatus including an inspection fixture which has a base, and at least one guide extending from the base. Each guide is slidably engagable to one of the rotor slots of the rotor disk and has a guide side sha...
08/19/2003
6563307Eddy current inspection probe
An eddy current inspection probe for inspecting a preselected surface. The eddy current inspection probe includes an expandable element at least partially defining an interior space which is expandable by introducing a pressurized fluid into the interior ...
05/13/2003
6545467Contoured surface eddy current inspection system
Eddy current inspection of a contoured surface of a workpiece is performed by forming a backing piece of flexible, resiliently yieldable material with a contoured exterior surface conforming in shape to the workpiece contoured surface. The backing piece i...
04/08/2003
6545469Embedded eddy current inspection apparatus, system, and method
An embedded eddy current inspection apparatus includes a substrate having an opening, and a test eddy current coil ("test coil") affixed to the substrate near the opening. An internally inspected multilayer component structure includes an upper layer, a l...
04/08/2003
6479989Eddy current probe with an adjustable bisected sensing end
In accordance with the present invention there is provided an eddy current probe for the detection of defects within a structure. The probe has a sensing end with a coil disposed therein. The coil is operative to generate an eddy current field within the ...
11/12/2002
6469503Eddy current inspection probe and method of use
An eddy current inspection probe for inspecting a preselected surface at least partially defining an opening in a component. The probe includes a cast core having an exterior surface sized and shaped for receipt within the opening of the component and an ...
10/22/2002
6452384Scanning head for eddy-current testing, method for processing a scanning head for an eddy-current test method
A scanning head for eddy-current testing includes a probe coil configuration disposed on a film on a film base. The film base is matched to a shape of an object to be tested. This allows quick, low-interference eddy-current testing. A method for producing...
09/17/2002
6355361Fe group-based amorphous alloy ribbon and magnetic marker
An Fe group-based amorphous alloy ribbon having a cross section having a width of from 100 to 900 μm and a thickness of from 8 to 50 μm and a magnetic hysteresis loop which exhibits a large Barkhausen discontinuity. The amorphous alloy ribbon is suitabl...
03/12/2002
6339326Eddy current inspection probe
An eddy current inspection probe for inspecting a preselected surface at least partially defining an opening in a component. The eddy current inspection probe includes a core moveable between a retracted position and an expanded position in which the prob...
01/15/2002
6339331Methods and apparatus for inspecting TV-shaped openings, using eddy current
An inspection apparatus includes a component engagement apparatus, a detection apparatus, and a movement apparatus and is controlled by a cam. A drawer is slidably attached to the component engagement apparatus to receive and align a component including a...
01/15/2002
6175234Self-aligning eddy current probe holder
An intermediary device is provided between an eddy current bolt hole inspection machine and an associated eddy current probe to positionally align the probe in each bolt hole to be inspected. A first end of the device is attachable to the eddy current bol...
01/16/2001
6166538Autoclave cycle monitor for autoclaved instruments
An electronic autoclave cycle passively records the number of thermal cycles to which an instrument has been subjected in a steam autoclave. When a sterilization cycle has been completed, and the instrument is next energized in use, a microprocessor is em...
12/26/2000
6114849Flexible eddy current test probe
An eddy current test probe having a flexible sensor assembly for non-destructive testing of conductive parts. The flexible eddy current sensor assembly includes a coil assembly having a drive coil and a receive coil positioned in close proximity to each o...
09/05/2000
6037180Method for measuring the quantity of a polymeric or pre-polymeric composition
A method for measuring the quantity of a polymeric or pre-polymeric composition within a given volume that includes combining the polymeric or pre-polymeric composition with a plurality of microparticles having a non-ferromagnetic or non-ferrimagnetic cor...
03/14/2000
6004817Method for measuring stress levels in polymeric compositions
A method for measuring the level of stress in a polymeric or pre-polymeric composition within a given volume that includes combining the polymeric or pre-polymeric composition with a plurality of microparticles having a non-ferromagnetic or non-ferrimagne...
12/21/1999
5903147Eddy current array inspection device for shaped holes
An eddy current device for inspecting a component, such as a closed surface area of a gas turbine engine or the like, includes an eddy current array circuit having an active face for positioning on a surface portion of the component during an inspection o...
05/11/1999
5841255Flux detector system
An ac machine monitor, particularly applicable to ac induction motors, provides information for ascertaining the health and condition of the motor. The monitor is self-contained, having its own internal power source, electronics, and sensor suite, and att...
11/24/1998
5834937Bolt hole probe with flexure
An eddy current probe shaft with probe and drive mechanism attached for measuring integrity of a bolt hole, particularly useful for aircraft bolt holes, includes a continuous helical coil manufactured integrally into a one-piece steel shaft providing flex...
11/10/1998
5821129Magnetochemical sensor and method for remote interrogation
A magnetochemical sensor for continuous and in-situ sensing of a given chemical species/stimuli includes two magnetically-soft magnetic film layers and a chemical transduction layer that shrinks or swells in the presence of that given chemical species/sti...
10/13/1998
5793203Measurement system with noise reduction circuit
A measurement system for measuring material deterioration in accordance with a magnetic field of the material in the presence of radiation. The measurement system includes a detection circuit which detects a magnetic field of the material and generates a ...
08/11/1998
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