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| Number | Title | Issue Date |
| 8140273 | Program product to screen for longitudinal-seam anomalies Embodiments of the present invention provide systems, program product and methods to detect crack-like features in pipeline welds using magnetic flux leakage data and pattern recognition. A screening process, for example, does not affect or change how survey data is... | 03/20/2012 |
| 7917310 | Fault detector and method of detecting faults A fault detector for detecting valve movement of a valve in a fuel injector of an engine system, the valve includes an electromagnetic actuator arranged to move the valve between first and second valve positions, the engine system includes a sensor for sensing a cur... | 03/29/2011 |
| 7899628 | System, method and program product to screen for longitudinal-seam anomalies Embodiments of the present invention provide systems, program product and methods to detect crack-like features in pipeline welds using magnetic flux leakage data and pattern recognition. A screening process, for example, does not affect or change how survey data is... | 03/01/2011 |
| 7822562 | Removing air wave noise from electromagnetic survey data Method for removing air wave noise from shallow water controlled source electromagnetic survey data, using only the measured data and conductivity values for sea water (140) and air. The method is a calculation performed numerically on CSEM data and resulting... | 10/26/2010 |
| 7783432 | Method for nondestructive testing of pipes for surface flaws A method for nondestructive testing of the pipes for detecting surface flaws using magnetic leakage flux is disclosed. With of the method, flaws can be detected and analyzed in near-real-time while the pipe is produced. The data obtained with inductive coils, Hall s... | 08/24/2010 |
| 7711499 | Eddy current data interpolation/extrapolation A method of synthesizing nondestructive examination data of a component that combines data sets acquired at least two different frequencies. At least one of the data sets is interpolated or extrapolated to the equivalent of data acquired at one of the other frequenc... | 05/04/2010 |
| 7496455 | Electromagnetic flowmeter An electromagnetic flowmeter includes a measuring tube (1) through which a fluid to be measured flows, electrodes (2a, 2b) which are placed in this measuring tube and detect an electromotive force generated by a magnetic field appl... | 02/24/2009 |
| 7469187 | Eddy current detection and compensation A distortion compensation method includes determining an undisturbed phase for at least one of a first position indication signal and a second position indication signal. The method includes determining an undisturbed ratio that relates the amplitude of the first po... | 12/23/2008 |
| 7460963 | Device and method for health monitoring of an area of a structural element, and structure adapted for health monitoring of an area of a structural element of said structure Device for health monitoring of a structure comprising a dielectric material of permittivity εr, comprising a source of electromagnetic radiation, generating an electric field in the structure a detector measuring a component of the electric field, calcu... | 12/02/2008 |
| 7400984 | Biomagnetic measurement apparatus A biomagnetic measurement technique which can obtain a potential waveform corresponding to a ventricular muscle cell action potential in a non-invasive manner. The biomagnetic measurement apparatus including an operating circuit for magnetometer. The output data of ... | 07/15/2008 |
| 7376519 | Method for reducing the computation resources required for determining damage in structural health management system A method for determining damage in a structural health monitoring system comprising a plurality of sensors distributed across a structure is disclosed. The method includes decomposing the plurality of sensors into a plurality of sub-arrays. Each sub-array is associa... | 05/20/2008 |
| 7369949 | Electromagnetic flowmeter An electromagnetic flowmeter includes a measuring tube, an electrode, an exciting unit, a signal conversion unit, and a flow rate calculating unit. The signal conversion unit extracts a ∂A/∂t component irrelevant to a flow velocity of the fluid and a v×B compon... | 05/06/2008 |
| 7356421 | Precise location of buried metallic pipes and cables in the presence of signal distortion A new approach for locating an underground line described herein remains accurate in the face of bleedover by including both amplitude and phase from at least two magnetic field strength sensors in the measurement set. A numerical optimization step is introduced to ... | 04/08/2008 |
| 7346999 | Methods and system for inspection of fabricated components Methods and apparatus for inspecting a component are provided. The method includes receiving a plurality of data points that define a shape of the component, fitting the received data points to a curve that defines a predetermined model shape, and comparing the rece... | 03/25/2008 |
| 7336455 | System and method for proactive motor wellness diagnosis The present invention is directed to a power meter or overload relay including a housing and a plurality of sensors configured to monitor operation of a motor. A processor disposed within the housing and configured to receive operational feedback from the plurality ... | 02/26/2008 |
| 7320249 | Magnetically attracted inspecting apparatus and method using a fluid bearing An apparatus and method for inspecting a structure are provided which include probes with sensing elements and are disposed proximate opposite surfaces of a structure, where only one of the probes need be driven. A tracking probe may be magnetically coupled to a dri... | 01/22/2008 |
| 7318051 | Methods for feature selection in a learning machine In a pre-processing step prior to training a learning machine, pre-processing includes reducing the quantity of features to be processed using feature selection methods selected from the group consisting of recursive feature elimination (RFE), minimizing the number ... | 01/08/2008 |
| 7302356 | Coriolis flowmeter A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeters may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a me... | 11/27/2007 |
| 7289913 | Local feature characterization using quasistatic electromagnetic sensors Local features such as cracks in materials are nondestructively characterized by measuring a response with an electromagnetic sensor and converting this response into a selected property using a database. The database is generated prior to data acquisition by using ... | 10/30/2007 |
| 7279893 | RECEIVER CHANNEL DATA COMBINING IN PARALLEL MR IMAGING An image reconstruction technique determines linear combinations of receiver channel information that contribute the most to image SNR and quantifies the SNR loss for the reduced receiver channel set for image reconstruction to reduce the computational burden placed... | 10/09/2007 |
| 7275015 | Method and device for determining motion parameters of a conductive, profiled surface A method and a device for determining motion parameters of a conductive, profiled surface (22) relative to a sensor (3), with the sensor (3) comprising at least one coil for generating an electromagnetic alternating field, which is subjected, be... | 09/25/2007 |
| 7275003 | Harmonic diagnosing method for electric facility The present invention relates to a method of diagnosing deterioration by comparing an index value which is obtained by dividing the relative harmonic content of each order of the current harmonics flowing into an electric motor and inverter by the total harmonic dis... | 09/25/2007 |
| 7257259 | Lossless variable-bit signature compression Apparatus and methods for compressing data points. The invention compresses the representation of a sequence of points in a space by, for example, dividing the sequence of points into segments of successive points and then compressing each of the segments irrespecti... | 08/14/2007 |
| 7245103 | Motor speed and position control A method of controlling the speed and position of a motor includes receiving a pulse train indicative of the speed of the motor, and a periodic signal at a frequency greater than the pulse train. The number of cycles of the periodic signal per cycle of the pulse tra... | 07/17/2007 |
| 7243058 | Method and circuit for operating a voice coil actuator of a mass data storage device A circuit (90) and method are presented to accurately determine a BEMF voltage of a VCM coil (20) after termination of a driving current in a first current direction in the coil (20). The circuit includes a circuit for activating selected VCM co... | 07/10/2007 |
| 7239731 | System and method for non-destructive functional imaging and mapping of electrical excitation of biological tissues using electromagnetic field tomography and spectroscopy A system and method for non-destructive functional imaging and mapping of electrical excitation of biological tissues with the help of electromagnetic (“EM”) field tomography and spectroscopy using a sensitive material (solution) added/injected into the biologic... | 07/03/2007 |
| 7231320 | Extraction of imperfection features through spectral analysis Autonomous non-destructive inspection equipment provides automatic and/or continuous inspection and evaluation of a material under inspection. The inspection equipment preferably comprises at least one detection sensor and at least one detection sensor interface for... | 06/12/2007 |
| 7221155 | Inventory counter for oil and gas wells A magnetic induction device mounted at the wellhead that is capable of measuring changes in magnetic flux can recognize when a tubing joint or casing collar passes in or out of the well. The number of changes in magnetic flux directly correlates to the number of joi... | 05/22/2007 |
| 7209844 | Magnetic crash sensor A first magnetic field generated by a first coil operatively associated with a first portion of a vehicle interacts with at least one conductive element operatively associated with or at least a part of a second portion of the vehicle so as to generate an eddy curre... | 04/24/2007 |
| 7194363 | Ultrasonic flowmeter A low power ultrasonic flowmeter to be powered by a two wire power supply loop is described, comprising: an ultrasonic flow sensor, a signal processing unit for determining a measurement result based on measurements performed by the ultrasonic flow sensor, an input/... | 03/20/2007 |
| 7184902 | Motor parameter estimation method and apparatus A system and method for establishing estimated values of electrical parameters of a motor. The electrical parameters may be established from motor databases, measured input electrical data, measured output data, and various estimations to account for unknown motor p... | 02/27/2007 |
| 7174256 | Magnetoinductive flowmeter and measuring method for a magnetoinductive flowmeter The magnetoinductive flowmeter measures the flow volume of a medium traveling through a measuring tube, with a magnet that serves to generate a magnetic field permeating the measuring tube that has a magnetic-field component that extends perpendicular to the directi... | 02/06/2007 |
| 7168291 | Apparatus and method for determining feedscrew and barrel wear An apparatus and a method for determining wear of a feedscrew and barrel combination includes measuring wear of the barrel using a gage plug in a measuring aperture in the barrel or an ultrasonic thickness gauge and measuring feedscrew wear with an eddy current sens... | 01/30/2007 |
| 7165465 | Dynamic load fixture for application of torsion loads for rotary mechanical systems A dynamic load fixture (DLF) applies a torsion load to a unit under test (UUT) to achieve the demanding aerodynamic load exposures encountered by a control actuation system (CAS) in flight. Instead of fixing the end of the torsion bar, the DLF controls the applicati... | 01/23/2007 |
| 7164243 | System and method for establishing motor efficiency during balanced or unbalanced operating conditions A system and method for establishing a plurality of operating parameters of a multiphase motor. The plurality of electrical parameters may be established from stator resistance data and electrical input data. The system and method may be used to decompose the electr... | 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 |
| 7149633 | Displacement method of knot sizing A method of estimating the displaced size of a knot in a lumber piece includes the steps of: translating the lumber piece downstream along a flow path between a radiation source and sensor while simultaneously irradiating the lumber piece with radiation from the fir... | 12/12/2006 |
| 7135830 | System and method for identifying operational parameters of a motor A system and method for establishing estimated values of electrical parameters of a motor. The electrical parameters may be established from stator resistance data and motor data obtained at a single load on the motor. The electrical parameters also may be establish... | 11/14/2006 |
| 7110891 | Degaussing vulnerability display program Magnetic signature measurements are taken at various points corresponding to an original water depth beneath a ship. A computer processor receives and processes (i) this group of measured magnetic signature values and (ii) the designed magnetic signature value the s... | 09/19/2006 |
| 7089130 | Electric/magnetic field analysis method using finite difference time domain, material descriptive method in electric/magnetic analysis, electric/magnetic analysis device, analysis data generation device and storage medium Two centerlines each of which goes through the center of a surface and is parallel to one of the coordinate axes are considered for each surface constituting a cell. If one of the centerlines intersects a boundary, a line which goes through the intersection and is o... | 08/08/2006 |
