Abstract: An apparatus to provide power for operating at least one gradient coil of a magnetic resonance imaging system. According to some aspects, the apparatus comprises a plurality of power terminals configured to supply different voltages of a first polarity, and a linear amplifier configured to provide at least one output to power the at least one gradient coil to produce a magnetic field in accordance with a pulse sequence, the linear amplifier configured to be powered by one or more of the plurality of power terminals, wherein the one or more of the plurality of power terminals powering the linear amplifier is selected based, at least in part, on the at least one output.

Abstract: A steering tool is movable by a drill string to form an underground bore along an intended path. A sensing arrangement of the steering tool detects its pitch and yaw orientations at a series of spaced apart positions along the bore, each position is characterized by a measured extension of the drill string. The steering tool further includes a receiver. At least one marker is positioned proximate to the intended path, for transmitting a rotating dipole field to expose a portion of the intended path to the field for reception by the receiver. The detected pitch orientation, the detected yaw orientation and the measured extension of the drill string are used in conjunction with magnetic information from the receiver to locate the steering tool. The steering tool may automatically use the magnetic information when it is available. A customized overall position determination accuracy can be provided along the intended path.

Abstract: A radiating beacon system includes a traced wire configured to produce a first magnetic field circulating around the traced wire. The system also includes a radiating beacon configured to produce a second magnetic field circulating around the radiating beacon, wherein the radiating beacon is coupled to the traced wire. The system further includes a locator transmitter configured to apply a tracing signal to the traced wire, wherein the locator transmitter is selectively coupled to the traced wire. The system includes a locator receiver configured to receive the first magnetic field and the second magnetic field, wherein the locator receiver produces an output in response to receiving the first magnetic field and the second magnetic field. Since digital decoders of digital network systems block valves from producing the second magnetic field, an underground irrigation system now includes the radiating beacon system to accurately locate the valves.

Abstract: A method of detecting a vibration comprises determining a vibration flag has been set during a running mode, entering a vibration mode, providing direction information for a target object during the vibration mode of the magnetic field sensor, holding onto positive peak values and negative peak values of the magnetic field signal during the vibration mode of the magnetic field sensor, and returning to the running mode after receiving at least two clock cycles of the magnetic field signal with no further vibration flags set.

Abstract: Man-portable locator systems for locating buried or otherwise inaccessible pipes, conduits, cables, wires, and/or inserted transmitters using magnetic field antenna arrays and signal processing to analyze and display information about multiple buried utilities simultaneously are disclosed.

Abstract: A conductor includes a first conductor portion, which is separated from a first imaginary flat plane on which a magnetoresistance effect element is disposed, and through which a current to be measured flows parallel to a first imaginary straight line, a second conductor portion, which intersects the first imaginary flat plane and through which the current to be measured flows parallel to a second imaginary straight line, a bent portion, which is disposed between the second conductor portion and the first conductor portion and is bent in a direction parallel to the first imaginary straight line from a direction parallel to the second imaginary straight line, and a third conductor portion disposed between the bent portion and the first conductor portion. The magnetic field due to the current to be measured flowing through the second conductor portion is perpendicular to the first imaginary flat plane.

Abstract: A position sensor includes a magnet that generates a magnetic field, and a magnetic detector that is positioned opposing the magnet to detect an inclination of the magnetic field caused by the magnet. The magnet and the magnetic detector move relative to each other when an operation member is automatically or manually operated. The position sensor detects an operation position of the operation member based on a detection signal of the magnetic detector. The magnet includes two magnets positioned to oppose each other to generate the magnetic field as a parallel magnetic field at a rotation center of a support structure that forms operation axes of the operation member in multiple directions. The magnetic detector is arranged between the two magnets positioned opposing each other.

Abstract: A magnetic field sensing device includes at least one vortex magnetoresistor and at least one magnetization setting element. The vortex magnetoresistor includes a pinning layer, a pinned layer, a spacer layer, and a round free layer. The pinned layer is disposed on the pinning layer, and the spacer layer is disposed on the pinned layer. The round free layer is disposed on the spacer layer, and has a magnetization direction distribution with a vortex shape. The magnetization setting element is alternately applied and not applied an electric current to. When the magnetization setting element is not applied the electric current to, the magnetization direction distribution with the vortex shape of the round free layer is varied with an external magnetic field. When the magnetization setting element is applied the electric current to, a magnetic field generated by the magnetization setting element makes the round free layer achieve magnetic saturation.

Abstract: Embodiments include systems and methods for determining a processing parameter of a processing operation utilizing micro resonator sensors. Some embodiments include a diagnostic substrate comprising a substrate, a circuit layer over the substrate, a cavity in the circuit layer, a capping layer over the circuit layer, a resonating body in or over the cavity, one or more electrodes in the cavity, and circuitry for driving and sensing the resonant frequency of the resonating body. In an embodiment, the circuitry comprises a biasing circuitry block configured to provide a bias voltage to the one or more electrodes, a frequency generator circuitry block configured to provide a signal with a varying frequency to the one or more electrodes, and a sensing circuitry block configured to detect a value correlated to oscillation of the resonating body.

Abstract: A magnetoscop inspection system includes a magnetoscop, a computed tomography unit, and a corrosion model unit. The magnetoscop measures a permeability at a plurality of inspection points of a turbine component. The computed tomography unit generates a measured profile of a hollowed portion of the turbine component based at least in part on the permeability at the measured inspection points. The corrosion model unit stores in memory at least one reference computed tomography profile of a known turbine component. The magnetoscop inspection system determines a structural integrity of the turbine component based on a comparison between the measured profile and the reference profile corresponding to the turbine component currently under inspection.

Abstract: An apparatus to provide power for operating at least one gradient coil of a magnetic resonance imaging system. According to some aspects, the apparatus comprises a plurality of power terminals configured to supply different voltages of a first polarity, and a linear amplifier configured to provide at least one output to power the at least one gradient coil to produce a magnetic field in accordance with a pulse sequence, the linear amplifier configured to be powered by one or more of the plurality of power terminals, wherein the one or more of the plurality of power terminals powering the linear amplifier is selected based, at least in part, on the at least one output.

Abstract: A method comprising: disposing an induction tool in a cased hole, wherein the induction tool comprises a transmitter and a receiver; broadcasting electromagnetic fields from the transmitter into a subterranean formation to form an eddy current; recording the eddy current with the receiver to produce induction measurements; obtaining a log comprising at least one channel from the induction measurements; constructing an inversion cost functional comprising a misfit term and a regularization term; performing a first inversion using the inversion cost functional to estimate pipe properties at a first plurality of depth points; optimizing the inversion cost functional such that the estimated pipe properties at the first plurality of depth points minimize an objective functional; performing a second inversion using the optimized inversion cost functional to estimate pipe properties at a second plurality of depth points; and displaying the pipe properties at the second plurality of depth points to a user.

Abstract: A method for suppressing a water line in an acquired magnetic resonance spectra (MRS) y, the method including receiving (800) the acquired MRS spectra y; estimating (802) a water peak ywp for the acquired MRS spectra y using squared eigenfunctions (?) of a Schrödinger operator H; and removing (804) the water peak ywp from the acquired MRS y to obtain a suppressed water MRS spectra yws. The suppressed water MRS spectra yws includes a signature of one or more metabolites.

Abstract: A nanofiber sensor includes a plurality of pairs of electrodes and nanofibers respectively bridging the gaps between the electrodes in the pair, between the electrodes in the pair, and between the electrodes in the pair. At least two pairs of electrodes of the plurality of pairs of electrodes are different from each other in structures.

Abstract: According to an example, a three-dimensional (3D) printed object may include a body formed of an electrically non-conductive material. In addition, an electrically conductive channel, a sensing device, and a signal emitter may be embedded within the body. The sensing device may be in electrical communication with the electrically conductive channel such that the sensing device is affected by a disruption in a current applied through the electrically conductive channel. In addition, the signal emitter may emit a wireless signal in response to the sensing device being affected by a disruption in the applied current.

Abstract: Methods and apparatus for positioning a magnetic field sensor IC package having a first channel for a planar magnetic field sensing element and a second channel for vertical magnetic field sensing element in relation to an axis of a ring magnet to provide a desired phase relationship between the first and second channels. In embodiments, positioning the sensor includes an offset angle and a displacement with respect to a centerline of the ring magnet.

Abstract: An induction transceiver system includes a magnetic core and an insulator surrounding the magnetic core. The system further includes a cylindrically-shaped sleeve substantially surrounding the insulator. The sleeve includes a gap along the length of the sleeve. A potential difference is measured across the gap when receiving, and a current is applied across the gap when transmitting.

Abstract: An analysis unit includes a frontal plane to access the analysis unit, a mounting plane perpendicular to the frontal plane, and a gas measurement device. The gas measurement device includes a connection housing part and a main housing part. The connection housing part includes an inlet channel and an outlet channel which extend from the mounting plane to a first connection plane. The main housing part includes a second connection plane which corresponds to the first connection plane. The main housing part rests on the first connection plane. The main housing part further includes an inflow channel which fluidically communicates with the inlet channel via the first connection plane, and a recirculation channel which fluidically communicates with the outlet channel via the first connection plane. The first and second connection planes are tilted at an angle of 45° from the mounting plane in a direction of the frontal plane.

Abstract: A magnetic field sensor for measuring an external magnetic field, including a sensor unit; and a flux conductor assembly including at least one switchable element, which is designed to deflect a flux of the external magnetic field onto the sensor unit as a function of a switching state of the at least one switchable element, the sensor unit being designed to measure the deflected flux of the external magnetic field; and an evaluation unit, which is designed to ascertain a value of the external magnetic field as a function of the deflected flux of the external magnetic field measured by the sensor unit and the switching state of the at least one switchable element.

Abstract: A semiconductor device with at least one embedded photodetector is disclosed. The at least one photodetector is embedded in a hot carrier injection (HCI) area, and detects a quantity of emitted photons. Further, the photodetector triggers a warning when the photodetector detects a number of photons greater than a threshold number of photons. Additional embodiments are directed to a method of detecting HCI. The method includes embedding a photodetector in a power semiconductor device, setting at least one threshold number of photons, detecting photons, determining a number of photons, determining when the number of photons is above a threshold number of photons, and generating a warning. When the number of photons is above the threshold, the warning is triggered. Further embodiments are directed to an article of manufacture comprising at least one semiconductor device with at least one photodetector embedded in an area predicted to experience HCI.