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| Number | Title | Issue Date |
| 8115480 | Magnetic body detector To provide a magnetic body detector as a means for warning that a magnetic body enters into a room where a strong magnet, such as an MRI diagnostic system, is installed, wherein a magnetic sensor can detect even a small magnetic body without being saturated even in ... | 02/14/2012 |
| 7489128 | MRI protector An MRI protector for protecting personnel and the MRI apparatus from the introduction of ferrous articles into the magnetic field of the MRI has an array of Hall effect sensors oriented to scan the magnetic field of the MRI. The Hall effect sensors are oriented to s... | 02/10/2009 |
| 7426867 | Electromagnetic acoustic transducers for use in ultrasound inspection systems An ultrasound system for inspecting an object is provided. The ultrasound system includes an electromagnetic acoustic transducer (EMAT) and a pulser-receiver system. The EMAT is configured to generate acoustic signals representative of the area being inspected and c... | 09/23/2008 |
| 7362097 | RFT pipeline inspection system and method therefor A system (20) and method for the inspection of a pipeline (22) is disclosed. The system (20) is made up of a plurality of flexibly coupled modular units (24) configured to pass through the pipeline (22). One modular unit (24... | 04/22/2008 |
| 7355394 | Apparatus and method of dynamically measuring thickness of a layer of a substrate A method and apparatus are provided for measuring the thickness of a test object. The apparatus includes an eddy current sensor having first and second sensor heads. The sensor heads are positioned to have a predetermined gap therebetween for passage by at least a p... | 04/08/2008 |
| 7334330 | Thermally insulating layer incorporating a distinguishing agent and method for inspecting the same Thermally insulating layer incorporating a distinguishing agent and method for inspecting the insulating layer are provided. The distinguishing agent may be used for determining a remaining thickness of the thermally insulating layer. ... | 02/26/2008 |
| 7309618 | Method and apparatus for real time metal film thickness measurement A semiconductor processing system is provided. The semiconductor processing system includes a first sensor configured to isolate and measure a film thickness signal portion for a wafer having a film disposed over a substrate. A second sensor is configured to detect ... | 12/18/2007 |
| 7305884 | In situ monitoring of reactive material using ultrasound The present invention provides a device and method of non-destructively monitoring reactive material through a substrate for changes in material properties that designate the condition of the reactive material during cure and service life. A transducer is placed on ... | 12/11/2007 |
| 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 rivet) that would otherwise cause a signal change preventing detection o... | 11/27/2007 |
| 7282909 | Methods and apparatus for determining the thickness of a conductive layer on a substrate A method of determining the thickness of a conductive film is disclosed. The method employs measured voltage and current responses that have been temperature-compensated to determine the thickness of the conductive film. The temperature compensation uses a temperatu... | 10/16/2007 |
| 7265530 | Adaptive slope compensation for switching regulators A system, method, and apparatus are arranged to provide adaptive slope compensation in a switching regulator that includes an inductor. A control loop of the switching regulator is responsive to a ramp signal. A ramp generator that includes a capacitor circuit and a... | 09/04/2007 |
| 7248041 | Device and method for measuring transient magnetic performance A device for evaluating magnetic component performance and methods of evaluating transient magnetic performance of such components are disclosed. Magnetic flux capacity and/or energy loss of a magnetic component is/are measured, and the measurement data is electroni... | 07/24/2007 |
| 7208971 | Manual probe carriage system and method of using the same A probe support carriage for use during probing an electrical device includes a body, means for supporting and positioning the body, a plurality of flux sensors and a position sensor. The body has a first end and a second end. The plurality of flux sensors are opera... | 04/24/2007 |
| 7173418 | Methods and apparatus for optimizing an electrical response to a set of conductive layers on a substrate A method of determining a first thickness of a first conductive layer formed of a first conductive material on a target substrate, the target substrate further having a second conductive layer formed of a second conductive material different from the first conductiv... | 02/06/2007 |
| 7164353 | Method and system for testing RFID devices A method and system for testing a plurality of RFID devices disposed on a common carrier. In one embodiment, the RFID devices are evenly spaced along the length of the carrier, and the system comprises a short-range tester, a long-range tester and a computer, the sh... | 01/16/2007 |
| 7155369 | Autonomous non-destructive inspection Autonomous non-destructive inspection equipment provides automatic and/or continuous inspection and evaluation of a material under inspection. The inspection equipment comprises at least one detection sensor and at least one detection sensor interface for a computer... | 12/26/2006 |
| 7148681 | Proximity sensor device that determines at least one physical characteristic of an item A sensor device includes the ability to determine part presence and at least one physical characteristic of the part. A drive coil and sense coil are arranged so that a voltage applied across the drive coil causes a response in the sense coil, which is influenced by... | 12/12/2006 |
| 7141985 | Field programmable driver/transmitter for a proximity probe An electronics package for use with a proximity probe is disclosed that is capable of being calibrated to work with any proximity probe and cable and that is capable of being programmed in the field. The electronic package establishes and measures a plurality of gap... | 11/28/2006 |
| 7128803 | Integration of sensor based metrology into semiconductor processing tools A system for processing a wafer is provided. The system includes a chemical mechanical planarization (CMP) tool. The CMP tool includes a wafer carrier defined within a housing. A carrier film is affixed to the bottom surface and supports a wafer. A sensor embedded i... | 10/31/2006 |
| 7123030 | Method and apparatus for detecting elevator rope degradation using electrical resistance A method and system for detecting or measuring defects in an elevator rope having electrically conductive tension members, whereby measured electrical resistance in the tension members is indicative of defects. ... | 10/17/2006 |
| 7112762 | Systems for correcting slow roll Certain exemplary embodiments comprise a system comprising: a heating element; and a control system adapted to control a heating of a shaft to a temperature within a predetermined temperature range for a predetermined time interval, the heating sufficient to reduce ... | 09/26/2006 |
| 7112961 | Method and apparatus for dynamically measuring the thickness of an object A method and apparatus are provided for measuring the thickness of a test object. The apparatus includes an eddy current sensor having first and second sensor heads. The sensor heads are positioned to have a predetermined gap therebetween for passage by at least a p... | 09/26/2006 |
| 7107154 | Wellbore evaluation system and method A wellbore evaluation system evaluates mechanical wear and corrosion to components of a well system including a production tubing string positionable in a well and a sucker rod string movable within the production tubing string. A deviation sensor determines a devia... | 09/12/2006 |
| 7084621 | Enhancement of eddy current based measurement capabilities A method and an apparatus for enhancement of the for measuring resistance-based features of a substrate is provided. The apparatus includes a sensor configured to detect a signal produced by a eddy current generated electromagnetic field. The magnetic field enhancin... | 08/01/2006 |
| 7069173 | System and method for determining an angular position of a rotor and a radial position of the rotor A system and a method for determining an angular position of a rotor and a radial position of the rotor are provided. The rotor has either a slot or a protrusion on the rotor. The rotor is centered about a center point. The method includes generating a first signal ... | 06/27/2006 |
| 7062971 | Monitoring thermal barrier coating deterioration via acoustic response to gas flow, pressure and impact A method of monitoring the condition of a thermal barrier coating on a turbine blade or vane during operation of the turbine is provided. The method includes providing a means for receiving acoustic output of the blade or vane during operation of the turbine and mon... | 06/20/2006 |
| 7061390 | Movement detection sensor and movement detection device A first movement detection sensor comprises a void formed by a partition wall made of a non-magnetic material, a magnetized rolling member which is sealed inside the void, and a magnetic sensor provided in the partition wall. A second movement detection sensor is co... | 06/13/2006 |
| 7049810 | Apparatus to measure fill An apparatus for indicating the wall thickness of a cored welding wire traveling in a given path to determine the percentage of volume of fill. This apparatus comprises a first induction coil surrounding the path; a source of AC current connected across the coil; a ... | 05/23/2006 |
| 7042207 | Inductive measurement system and method A system and method measures parameters associated with an inductor such as in a switching converter. The inductance value can be determined by monitoring voltages and currents associated with the inductor when a measurement mode is activated. In one example, the me... | 05/09/2006 |
| 7038445 | Method, system and apparatus for ferromagnetic wall monitoring A device and method is taught for detection of flaws and localized wall loss in pipes made of ferromagnetic-based material. The device utilizes a magnetic field generator to create a horizontal magnetic field of flux. A pipe is passed through the magnetic field wher... | 05/02/2006 |
| 7023205 | Eddy current sensor capable of sensing through a conductive barrier An eddy current sensor that can be mounted on the outside of a casing for a turbine or other rotating machinery to measure characteristics of nearby, moving, electrically conductive objects through the casing. Monodirectional and omnidirectional sensors are provided... | 04/04/2006 |
| 7009387 | Tranducer of angular quantities for a cycle A transducer comprising a fixed part and a mobile part which are mounted for relative motion about a given axis. On the shaft of the rotor part there is fitted a magnetized element consisting, for example, of an annular element diametrically magnetized at a single p... | 03/07/2006 |
| 6975108 | Methods and devices for eddy current PCB inspection A non-contact printed circuit board (PCB) electromagnetic testing system comprises at least one high resolution transducer operative to induce multi-frequency, multi-amplitude eddy currents in a tested PCB, each such transducer including both a high frequency excita... | 12/13/2005 |
| 6967478 | Pipe condition detecting apparatus The invention relates to apparatus and a method for detecting the condition of the material of a pipeline wall. The apparatus includes means for inducing and detecting magnetic flux at a location on the pipeline and, at said location, sensing means detect whether an... | 11/22/2005 |
| 6955209 | Method and arrangement implementing heat treatment after the execution of sprayform techniques A method and arrangement for implementing post-heat treatment after spray forming is ended to achieve stress control in the manufacture of a spray formed metallic tool involves providing a spray-formed metallic tool by applying a spray-forming material on a mold sub... | 10/18/2005 |
| 6951624 | Method and apparatus of arrayed sensors for metrological control A system for processing a wafer is provided. The system includes a chemical mechanical planarization (CMP) tool. The CMP tool includes a wafer carrier defined within a housing. A carrier film is affixed to the bottom surface and supports a wafer. A sensor embedded i... | 10/04/2005 |
| 6949925 | Proximity sensor device that determines at least one physical characteristic of an item A sensor device includes the ability to determine part presence and at least one physical characteristic of the part. A drive coil and sense coil are arranged so that a voltage applied across the drive coil causes a response in the sense coil, which is influenced by... | 09/27/2005 |
| 6924640 | Oil and gas well tubular inspection system using hall effect sensors An inspection system for detecting flaws in oil and gas well borehole ferromagnetic tubulars. The inspection device operates inside the tubular by first saturating tubular wall with magnetic flux. Flaws in the wall causes flux leakage, and the magnitude of the flux ... | 08/02/2005 |
| 6923241 | Method and arrangement for controlling stresses based on one-dimensional modeling in sprayform techniques Method and apparatus for controlling stresses in a spray form process makes use of one dimensional modeling in which characteristics of a geometrical point are quantified by iterative detection, such as taking a surface temperature reading using a pyrometer. This te... | 08/02/2005 |
| 6844725 | Electric and magnetic field detection device and electric and magnetic field measurement apparatus The intensity of electric and magnetic component is measured at a high-speed without reducing spatial resolution. An electric and magnetic field detection device has an electric field detection device for detecting an electric field component, and a magnetic field d... | 01/18/2005 |
