Some embodiments of the invention may include an eddy current nondestructive evaluation device. The eddy current nondestructive evaluation device may include a rotating body; a motor coupled with the rotating body such that the motor rotates the rotating body; a permanent magnet coupled with the rotating body; a pickup coil coupled with the rotating body; and an integrator circuit electrically coupled with the pickup coil that integrates a voltage from the pickup coil to produce integrated voltage data.

Some embodiments of the invention may include an eddy current nondestructive evaluation device. The eddy current nondestructive evaluation device may include a rotating body; a motor coupled with the rotating body such that the motor rotates the rotating body; a permanent magnet coupled with the rotating body; a pickup coil coupled with the rotating body; and an integrator circuit electrically coupled with the pickup coil that integrates a voltage from the pickup coil to produce integrated voltage data.

Provided is a device for nondestructive testing of a component, including a main body, test probes held on the main body, at least two displacement-indicator apparatuses held on the main body, each displacement-indicator having a displacement-sensing element, which is movably held on the main body, each displacement-indicator being designed to output a movement signal in response to the displacement-sensing element thereof being moved relative to the main body, which movement signal contains information about the instantaneous velocity of the movement of the displacement-sensing element relative to the main body or from which movement signal can be derived, and a displacement-indicator evaluation unit connected to the displacement-indicator apparatuses and designed and configured to receive movement signals from the displacement-indicator apparatuses during operation and to determine which displacement-indicator apparatus has the displacement-sensing element moving the fastest to output the movement signal of the displacement-indicator apparatus having the displacement-sensing element moving the fastest.

Provided is a device for nondestructive testing of a component, including a main body, test probes held on the main body, at least two displacement-indicator apparatuses held on the main body, each displacement-indicator having a displacement-sensing element, which is movably held on the main body, each displacement-indicator being designed to output a movement signal in response to the displacement-sensing element thereof being moved relative to the main body, which movement signal contains information about the instantaneous velocity of the movement of the displacement-sensing element relative to the main body or from which movement signal can be derived, and a displacement-indicator evaluation unit connected to the displacement-indicator apparatuses and designed and configured to receive movement signals from the displacement-indicator apparatuses during operation and to determine which displacement-indicator apparatus has the displacement-sensing element moving the fastest to output the movement signal of the displacement-indicator apparatus having the displacement-sensing element moving the fastest.

Embodiments of the present invention relate to a device comprising a platform comprising a layer of a 2-dimensional material. The device further comprises a plurality of electrodes and one or more molecules arranged on the platform. The device is configured to apply control signals to the plurality of electrodes to position the molecules by means of an electric field. Embodiments of the invention further concern a corresponding method for fabricating such a device and a method for positioning molecules by such a device.

A plurality of signal anomalies are identified in a number of tubes in a steam generator. Since the geometry of the steam generator is known, the location of each signal anomaly along each tube is converted into a location within the interior of the steam generator. If a plurality of signal anomalies are at locations within the steam generator that are within a predetermined proximity of one another, such a spatial confluence of signal anomalies is determined to correspond with a loose part situated within the steam generator. Additional methodologies can be employed to confirm the existence of the loose part. Historic tube sheet transition signal data can be retrieved and subtracted from present signals in order to enable the system to ignore the relatively strong eddy current sensor signal of a tube sheet which would mask the relatively weak signal from a loose part at the tube sheet transition.

Embodiments of the present invention relate to a method for using a device for the positioning of molecules, the devise including a semiconductor substrate including a semiconductor layer and an insulating layer with a plurality of electrodes arranged on the insulating layer forming an electrode layer with a layer of 2-dimensional material arranged on the electrode layer. The method includes applying a first set of control signals to the plurality of electrodes to position a plurality of molecules in a first molecule arrangement and applying a second set of control signals to the plurality of electrodes to position the plurality of molecules in a second molecule arrangement, wherein the second set of control signals is different from the first set of control signals and wherein the device provides a first functionality in the first molecule arrangement and a second functionality in the second molecule arrangement.

A probe device for a rotating head has at least one support arm that is mounted so as to rotate around an axis of rotation, at least one probe that is joined to the support arm, and at least one spring element that can be supported on the rotating head and engages at the support arm and that is provided for exerting a force on the support arm, which, as a result of this force, experiences a torque with respect to the axis of rotation. The support arm has at least one mount, which is concentric with the axis of rotation, for the spring element, which, when arranged on the mount, is bent at least in part around the axis of rotation. As a consequence, centrifugal forces that act on the spring element when the rotating head is in operation have no influence on the tension of the spring element.

A probe device for a rotating head has at least one support arm that is mounted so as to rotate around an axis of rotation, at least one probe that is joined to the support arm, and at least one spring element that can be supported on the rotating head and engages at the support arm and that is provided for exerting a force on the support arm, which, as a result of this force, experiences a torque with respect to the axis of rotation. The support arm has at least one mount, which is concentric with the axis of rotation, for the spring element, which, when arranged on the mount, is bent at least in part around the axis of rotation. As a consequence, centrifugal forces that act on the spring element when the rotating head is in operation have no influence on the tension of the spring element.

An inductive transducer apparatus for testing metallic objects using Pulsed Eddy Current topology. The Apparatus includes a transmitter coil, a receiver coil, and a hybrid core. The hybrid core has a high saturation point which allows the transducer to generate a strong initial magnetic field that may further induce strong eddy currents on the surface of the target capable of penetrating deep into metallic objects under inspection. The hybrid core also has a high permeability which enhances the transducer's sensitivity and allows to maintain high signal-to-noise-ratio and of the received signal associated with Eddy Current magnetic field decaying, thus enhancing the system's performance in environments where reliable quantitative analysis of flaws located deep underneath the surface of metal objects is required. A linearity compensation method may be applied to further enhance the performance of the system.