Abstract: The present invention provides a transmitter for an electromagnetic survey system for transmitting signals having a waveform comprising at least a first pulse and a second pulse, wherein the first and second pulses are different in at least one of shape and power. Embodiments of the invention enable combining various distinct pulses that may have been optimized for respective applications to form a transmitter waveform for conducting a geological survey. In effect, the embodiments of the present invention provides an EM system that is substantially equivalent to multiple EM systems operating at the same time for collecting data in relation to different aspects of the geology of interest. Advantageously, the benefits of the present invention can be obtained without the undesirable complexity and cost associated with the simultaneous deployment of multiple EM systems.

Abstract: A test fixture for testing performance of a trimmed cable and/or antenna components. The test fixture may be connected without the use of solder allowing for accurate testing or tuning of one or more the antenna components.

Abstract: In one embodiment, a shunt resistor is provided, comprising two terminals, a semiconductor substrate embodying at least one temperature sensor comprising at least a temperature sensitive element comprising at least one pn-junction, and at least two metal layers above the semiconductor substrate, at least the upper of the metal layer comprising a path that electrically connects the two terminals, whereby the temperature sensor is below and within the periphery of the upper metal layer.

Abstract: According to one embodiment, a semiconductor device comprises an integrated circuit having a plurality of current modes different in operation current; a voltage sensor that detects a voltage in use by the integrated circuit; a BIST control circuit that generates BIST patterns different in the operation current and creates a flag indicating the success or failure of a BIST corresponding to the operation current based on the result of detecting the voltage while the integrated circuit is made to operate based on the BIST pattern; and a storing unit that stores the flag. The integrated circuit sets the current mode based on the flag.

Abstract: Example embodiments provide systems and methods for a vehicle component structural integrity assessment system, comprising a first connection and a second connection coupled to a conduction path, which is associated with a vehicle component. The conduction path has an initial resistance. A controller is configured to transmit a signal upon the detection of a change in the resistance of the conduction path from the initial resistance.

Abstract: A method is provided for inspecting a prestressed concrete pipe (PCP). An impedance probe is passed along the PCP. As the impedance probe travels along the PCP, a magnetic field within the impedance probe is generated and the impedance of the impedance probe is measured. The measured impedances are analyzed for anomalies, which may indicate broken prestressed wires. RFT probes, which are what are typically used for inspecting PCPs, require axial separation of two coils, one being an exciter coil and the other being a passive detector coil. However, there is only a single coil in an impedance probe and so the apparatus used to inspect the PCP is not as large axially. The apparatus used to inspect the PCP is simpler to set up than if an RFT probe is used, and coupling between a transmitter and a receiver is not a concern.

Abstract: A system enables a borehole casing to be used to connection with establishing electromagnetic fields within the earth at the depth of formations of interest over a significant surface area. A particular advantage is that a borehole casing can be used as an essential part of the system, without needing to open the borehole.

Abstract: A monitoring device for monitoring power consumption of a magnetic bearing vacuum pump rotatably driven by a motor and configured such that a rotor is magnetically levitated and supported by a magnetic bearing, comprises: a calculator configured to calculate the power consumption of the magnetic bearing vacuum pump, the power consumption of the magnetic bearing vacuum pump being obtained by adding power consumption of the motor based on a motor rotational speed and a motor current value and power consumption of the magnetic bearing together; and a display controller configured to display, on a display device, the power consumption of the magnetic bearing vacuum pump calculated by the calculator.

Abstract: A sensor of electric current including a fiber (1) from a soft magnetic material with a uniform cross-sectional area and uniform magnetic properties along its whole length, equipped with an excitation coil (2) wound on said fiber (1) with a uniform winding density along the substantially whole length and possibly equipped with a sensing coil (3) wound on said fiber (1) with uniform winding density along the substantially whole length, where said fiber (1) ends are mechanically joined to form a loop enclosing the measured current carrying conductor (4) by said fiber (1), wherein said excitation coil (2) is connected to the current output of a current source (5) through a current transducer (6) generating a current signal corresponding to the excitation current flowing through said excitation coil (2) wherein the sensor is equipped with a voltage transducer (7) generating a voltage signal corresponding to the voltage on the possibly present sensing coil (3) or on the excitation coil (2) wherein said voltage sig

Abstract: A voltage measurement device is provided. The voltage measurement device includes a contact portion configured to contact an electric wire for transmitting an alternating current (AC) voltage and to output an induced voltage induced by the AC voltage in a surface of the electric wire, a capacitive element connected in series to the contact portion, and a controller configured to calculate amplitude of the AC voltage using the induced voltage output from the contact portion and a second voltage output from the capacitive element.

Abstract: A sealing gasket for an electrical connector system includes a resilient element configured to seal an interface between a header surface and a connector surface. The sealing gasket further includes thin-film sensing elements in contact with the resilient element that are configured to define a resistance of an electrical network based on a force applied to the sealing gasket. In some configurations, the sensing elements are arranged in a series electrical network and establish a conductive path when the force is greater than a predetermined force at each of the sensing elements. The thin-film sensing elements may be coupled to a controller that is configured to output a diagnostic based on a state of the electrical network.

Abstract: Method for sensing an external magnetic field using a magnetic sensor cell including: a magnetic tunnel junction including a reference layer having a reference magnetization oriented parallel to the plane of the reference layer, a sense layer having a sense magnetization, and a tunnel barrier layer between the sense and reference layers. A field line is configured for passing a field current for providing a sense magnetic field adapted for aligning the sense magnetization. The sense layer magnetization is orientable between a direction parallel to the plane of the sense layer and a direction perpendicular to the plane of the sense layer when the sense magnetic field is provided. The external magnetic field includes an in-plane component oriented parallel to the plane of the sense layer and an out-of-plane component perpendicular to the plane of the sense layer. The method includes sensing the out-of-plane component; and sensing the in-plane component.

Abstract: A rotational resolver system and method includes a rotational shaft to which at least one eccentric conductive coarse resolution disc is fixed and to which at least one conductive fine resolution disc is also fixed. The fine resolution disc defines a plurality of generally semicircular protruding edge segments. At least one conductive coarse-disc sensing coil is disposed adjacent an edge of the coarse resolution disc, and at least one conductive fine-disc sensing coil is disposed adjacent the edge of the fine resolution disc. These coils may be oriented for axial sensing of the respective disc.

Abstract: A method for measuring an alternating electric field is disclosed. The method includes realizing a first diffraction grating in a first location, in a core of a silica-based optical fiber, and measuring a peak reflection wavelength of the first diffraction grating. The method also includes positioning the optical fiber along a direction having a non-zero component of an electrical field generated by an alternating voltage to be measured, and coupling a substantially monochromatic light to said optical fiber surrounded by the electric field. The method further includes measuring a parameter dependent on a shift of the peak reflection wavelength due to intrinsic mechanical deformation or refractive index change of the material in which the optical fiber and the diffracting grating are realized due to the alternating electric field, and calculating a value of the electric field causing such a measured deformation or refractive index change.

Abstract: A self-contained branch circuit monitor 2 is has a small form factor configured to fit in the limited space available in a load center 1, in association with a branch circuit breaker 10A occupying a branch location slot 45 in the load center 1. A flexible printed circuit board 4 is wrapped around an outside circumference of a toroidal sensor coil 6 of a current transformer. A current monitoring circuit 15 is formed on the flexible printed circuit board. The monitoring circuit is electrically connected to leads 7, 9 from the sensor coil and is powered by current 17 induced in the sensor coil from current 5 in the branch circuit wire. A branch circuit wire 3A is threaded through the current transformer's center. A transmitter 22 is part of the flexible printed circuit board, to transfer the monitored current data to other locations.

Abstract: A detector for detecting at least one electric quantity in an electric conductor, and an overhead network for distributing electricity. The detector includes a frame on which a mechanism is fixed, the mechanism including a magnetic toroid, divided into two branches rotatable around an axis defined by the frame, between a separated position and a position closed around the electric conductor, a current sensor, divided into two branches rotatable around an axis defined by the frame, between a separated position and a position closed around the electric conductor, the current sensor performing an AC current measurement, a force transmitting element transmitting a rotational force to the magnetic toroid and the current sensor, the element being provided with at least one portion to receive the conductor by bearing, and a first clamp including two clamp arms, and a second clamp including two clamp arms.

Abstract: A system for detection of a photon emission generate by a device of an integrated circuit, and methods for detecting the same are provided. The system includes a device space configured to include the device. The system further includes an electrical probe proximate the device space and configured to couple to the device. The electrical probe is configured to induce the device to generate the photon emission. The system further includes an optical fiber having a first end proximate the device space and a second end spaced from the first end. The first end is configured to receive the photon emission generated by the device. The optical fiber is configured to transmit the photon emission from the first end to the second end. The system further includes a detector in communication with the second end of the optical fiber and configured to detect the photon emission transmitted by the optical fiber.

Abstract: The physical parameter measurement method is performed using an electronic circuit (1) with a resistive sensor (2). The resistive sensor includes two resistors (R1, R2) mounted in series, whose connection node connected to a moving mass (M), is connected to a first input of an amplifier-comparator (3). A second input of the amplifier-comparator receives a reference voltage. One output of the amplifier-comparator is connected to a logic unit (4), which provides a digital output signal (OUT). A digital-to-analogue converter (5) provides a measurement voltage (Vdac), as a function of a digital signal provided by the logic unit, to the first resistor (R1) in a first phase of a measurement cycle, whereas the second resistor (R2) is polarized by a polarization voltage, and to the second resistor in a second phase, whereas the first resistor is polarized by a polarization voltage via a switching unit.

Abstract: A method for detecting a malfunction of a battery control system including a plurality of sensors intended to measure separate physical quantities of the battery, the method including the following steps: a) reading output values of the sensors; and b) determining, by means of a processing unit, whether the read values are consistent with a physical phenomenon conditioning relationships between at least two of the quantities.

Abstract: A measuring apparatus has a physical amount transformer that transforms a physical amount into a current, a measuring circuit that measures an output current of the physical amount transformer, a power supply circuit that inputs an output of the measuring circuit, a circuit switching unit that switches between a first state and a second state, the first state constituting a circuit inputting the output of the measuring circuit into the power supply circuit, the second state constituting a circuit directly inputting the output of the measuring circuit into the physical amount transformer, and a switching controller driven by the power supply circuit to control the circuit switching unit.