A method of creating a synthetic aperture. The method may comprise identifying a static configuration, inputting the static configuration into a dynamic controller, configuring a transmitter with the dynamic controller, and configuring a receiver with the dynamic controller. The method may further comprise inputting operational variables and environmental variables into a dynamic configuration, inputting the dynamic configuration into the dynamic controller, and re-configuring the transmitter and the receiver with the dynamic controller.

The present invention relates to a method for manufacturing a wind turbine blade part. The method comprises providing one or more wind turbine blade components including a wind turbine blade component comprising a fibre material element, an electrically conductive element, a magnetic field generator for generating an Eddy current in the electrically conductive element; arranging the electrically conductive element, the magnetic field generator, and the fibre material element such that at least a part of the fibre material element is positioned between the electrically conductive element and the magnetic field generator; generating an Eddy current in the electrically conductive element using the magnetic field generator; generating, using a magnetic sensor, a signal representing a magnetic field induced by the generated Eddy current, and forming the wind turbine blade part by assembling the wind turbine blade components.

A method is described for estimating skin thickness over an implanted magnet. A plane is defined that is perpendicular to the skin of a patient over an implanted magnet and characterized by x- and y-axis coordinates. The magnetic field strength of the implanted magnet is measured using an array of magnetic sensors on the skin of the patient. From the measured magnetic field strength, at least one x-axis coordinate in the plane is determined for at least one y-axis zero position on the array where a y-axis component of the measured magnetic field strength is zero. From that, a y-axis coordinate of the at least one y-axis zero is calculated as a function of the at least one x-axis coordinate, such that the y-axis coordinate represents thickness of the skin over the implanted magnet.

A method of chemical mechanical polishing includes bringing a conductive layer of a substrate into contact with a polishing pad, supplying a polishing liquid to the polishing pad, generating relative motion between the substrate and the polishing pad, monitoring the substrate with an in-situ electromagnetic induction monitoring system as the conductive layer is polished to generate a sequence of signal values that depend on a thickness of the conductive layer, and determining a sequence of thickness values for the conductive layer based on the sequence of signal values. Determining the sequence of thickness values includes at least partially compensating for a contribution of the polishing liquid to the signal values.

An absolute thickness distribution cannot be accurately calculated with a conventional technique. A sensor device is provided that includes a plurality of magnetic sensors arranged to face an outer circumference surface of a pipeline and ultrasonic sensors arranged to face the outer circumference surface and measure a thickness of the pipeline in a measurement region in which the plurality of magnetic sensors measure a magnetic field, the ultrasonic sensors being less than the plurality of magnetic sensors.

A system for detecting and quantifying changes in the stress-strain state of a ferrous structure includes an exciter coil system positioned to generate an AC magnetic field that couples into the ferrous structure. A detector apparatus is positioned relative to the exciter to detect an eddy current magnetic field resulting from the AC magnetic field generated by the exciter coil system. An analyzer compares the eddy current magnetic field parameters detected by the detector apparatus with the direct AC magnetic field transmitted by the exciter coil system and correlates changes in the parameters of the eddy current magnetic field with the stress-strain on the ferrous structure.

A system for nondestructive inspection of structures. The system includes an omni-directional unmanned aerial vehicle (UAV) and a support arm extending outward from the UAV body from a first end attached to the body to a second distal end, which is used to support a nondestructive testing (NDT) sensor. The system includes an autopilot module stabilizing the flight of the omni-directional platform. The autopilot includes a wall-tracking mode, which determines the normal of the structure's surface, and the omni-directional UAV is stabilized to fly with the support arm aligned with normal to the surface and with the second end proximate to the surface with the UAV body in any orientation in space. The UAV operates to follow a flight path whereby a longitudinal axis of the support arm coincides with the normal and the sensor is positioned in predefined measurement position relative to the structure surface to take the measurements.

A defect of a magnetic member is quantitatively measured. An inspection probe (100) includes a plurality of magnets (2) which are provided along an outer circumference of a yoke in a circumferential direction and a plurality of Hall elements (3) which are provided on a plurality of magnetic circuits formed by the plurality of magnets (2) and a magnetic pipe (P) and which are arranged side by side with the plurality of magnets in an axial direction of the yoke to detect a density of a magnetic flux flowing through the plurality of magnetic circuits. With use of the inspection probe (100), an output from the plurality of Hall elements (3) is measured. Based on the output from the plurality of Hall elements (3), the presence/absence of the defect and a depth of the defect are calculated.

An apparatus for the implementation of a process for the continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. An apparatus contains a transfer roller; a coating roller contacting the transfer roller, a surface of the coating roller having a plurality of hexagonally shaped cells with a line count being from 50 to 200 lines per centimeter and a volume being from 5.Math.10.sup.−6 to 10.Math.10.sup.−6 m.sup.3 per square meter of the coating roller surface; and a tank containing an aqueous passivation solution, the tank providing the aqueous passivation solution to the coating roller.

Disclosed herein are a probe for a nondestructive testing device using a crossed gradient induced current and a method of manufacturing an induction coil for a nondestructive testing device. The probe for a nondestructive testing device using a crossed gradient induced current includes an induction coil formed to have a predetermined width and to generate first and second induced currents in a direction crossing each other when a current is applied from a power supply, and a magnetic sensor part installed adjacent to the induction coil so as to measure the first and second induced currents induced from the induction coil.