Abstract: A distance measuring apparatus and method for calculating a distance in a conducting structure are provided. One distance measuring apparatus provides for calculating a distance between a reflection body in a conducting structure and an injection point provided on an end section of the conducting structure for electromagnetic waves is provided. The distance measuring apparatus includes a transmitting and receiving device with a conduction cross-over provided at the injection point for the coaxially-inductive coupling of the transmitting and receiving device to the conducting structure in order to inject an electromagnetic wave into the conducting structure and to decouple the electromagnetic wave reflected on the reflection body from the conducting structure. The distance measuring apparatus also includes an analysis device for calculating a distance between the injection point and the reflection body from the phase difference between the injected electromagnetic wave and the decoupled electromagnetic wave.

Abstract: In one possible implementation, a method is provided for determining contactor health including measuring a differential voltage between a first utility line voltage and a second utility line voltage on a primary side of a contactor and on a secondary side of the contactor. The measuring is performed with both an unloaded current and with a load current. The unloaded and loaded measurements are performed at the primary side and the secondary side, and are made with the contactor closed. It includes determining a difference between a secondary unloaded voltage and a secondary loaded voltage and subtracting a difference between a primary unloaded voltage and a primary loaded voltage to provide a contactor voltage drop. The contactor resistance is determined by dividing the contactor voltage drop by the loaded current.

Abstract: A position detection device having a first electrode pair, an electrically conductive body that forms an electrical resistor which is electrically connected to the electrodes of the first electrode pair and extends in a first direction (y), between them, and with a measurement electrode which is in electrically conductive contact with the surface of a measurement area of the body located between the electrodes of the first electrode pair and can move relative thereto. The body is electrically connected to the electrodes of a second electrode pair and extends between them in a second direction (x) such that the measurement area is located between the electrodes of the second electrode pair.

Abstract: A device for detecting the insulation resistance of a high-voltage battery system of a motor vehicle that includes a high-voltage battery and a high-voltage component which is operatively connected to terminals of the high-voltage battery via converters. The device includes a reference resistor operatively connected to the terminals of the high-voltage battery via switches, with a voltage measurement device configured to detect the voltage present between each respective terminal and a reference potential of the vehicle; a voltage measurement device configured to measure the voltage between the terminals; and a coupling circuit configured to monitor the high-voltage component when the contactors are open.

Abstract: A probing device and manufacturing method thereof are provided. The manufacturing method includes first disposing a plurality of space transformers on a reinforcing plate and the space transformer includes several first pads. Then, the space transformer is fixed on the reinforcing plate. Thereafter, photoresist films having a plurality of openings is formed on the space transformer. The first pads are disposed in the openings. After that, a metal layer is formed and covered on the first pad. Later, the photoresist film is removed and the metal layer is planarized to form a second pad. Afterwards, the reinforcing plate is electrically connected with a PCB. Thereafter, a probe head having a plurality of probing area is provided and each probing area is corresponding to one of the space transformer. The probes in the probing area are electrically connected with the internal circuitry of the space transformer.

Abstract: A method of electrically testing an in-cell touch screen is disclosed. The in-cell touch screen includes a display electrode, a driving line, and a detecting line. The detecting line intersects the driving line. The method includes floating the display electrode and performing at least one of: A) applying a first predetermined voltage to one column of adjacent columns of the driving line or one row of adjacent rows of the driving line, and grounding the other column of the adjacent columns or the other row of the adjacent rows, and B) applying a second predetermined voltage to one column of adjacent columns of the detecting line or one row of adjacent rows of the detecting line, and grounding the other column of the adjacent columns or the other row of the adjacent rows. The method also includes determining whether the driving line or the detecting line is shorted or opened.

Abstract: A device for use in a power transmission system to sense GICs. The device may be a part of a reactance-injecting device on a power line, it may be a standalone device, or it may be a part of another type of device. The device may include a sensor to sense magnetic fields (e.g., a Hall effect sensor). The sensor may be positioned in the air gap of a magnetic core formed concentrically around the power line. The signal from the sensor may be converted to a digital signal and separately processed to determine the magnitude of the AC current and the magnitude of the DC (or quasi-DC) current. If the output signal of another A/C current sensor is available, that output signal may be used to adjust/calibrate the determined magnitude of the DC current. The sensor may communicate with other devices in a network to provide GIC information.

Abstract: The present disclosure provides methods, devices, and computer-readable media for health monitoring of lights. One or more embodiments include receiving data, including a junction temperature of a light emitting diode (LED), an ambient temperature, and a drive current associated with the LED, receiving a pre-existing LED performance data set, and determining an end of life of the LED based on the junction temperature of the LED, the ambient temperature, the drive current associated with the LED, and the pre-existing LED performance data set.

Abstract: A system and method for improved voltage contrast inspection is disclosed. In one embodiment the temporal response to voltage contrast is considered to find an optimal acquisition time. In another embodiment, multiple optimal acquisition times are identified. The identified acquisition times are used in voltage contrast inspection of semiconductor fabrication, and are well-suited to SOI technology.

Abstract: The invention relates to a device (10) for determining at least one characteristic of the electromagnetic radiation of an object being tested, and to a probe network (100), characterized in that it comprises a means (200) for sliding said probe network (100) on itself with a relative offset between the probe network (100) and the object being tested, that is higher than the pitch of the probe network (100) in order to carry out measurements along a plurality of relative positions of the probe network (100) and the object being tested, and to access specific regions of the object being tested; means are provided for positioning, adjusting and aligning the probe network (100) relative to the object being tested in order to move towards/come to/fit onto the object being tested, and means are provided for the mechanical scanning of the probe network around or in front of the object being tested in order to carry out measurements along spherical, cylindrical or planar shapes.

Abstract: Systems, devices, and methods of inspecting a body of a tubular, are provided. An exemplary electro-magnetic acoustic transducers (EMAT) tubular inspection system for inspecting a body of a tubular includes an EMAT in-line tubular inspection device. The device can include a spine having a longitudinal support body and radially projecting rails, and multiple telescoping sections each connected to the radially projecting rails. The telescoping sections can include a magnetic back panel, one or more wheels positioned to engage an inner surface of a body of a tubular during inspection, and signal propagating and receiving modules carried by the magnetic back panel. Each module can include a magnet and different types of EMAT inspection transducer coil arrangements connected to the magnet. The different types of EMAT inspection transducer coil arrangements provide for the generation of NBSH, SW, and SV waves.

Abstract: A semiconductor integrated circuit includes at least one second semiconductor chip configured to generate an internal voltage, and a first semiconductor chip including a monitoring unit configured to monitor the internal voltage, and a first pad configured to provide monitoring result information outputted from the monitoring unit to a test device.

Abstract: The present disclosure relates to a detecting circuit for a circuit breaker, comprises: a detection sensor configured to output a detection signal by detecting a voltage or a current on an alternating current electric power circuit; a low pass filter configured to output a signal from the detection sensor after removing a high frequency component from the signal; an offset remover configured to output a signal from the low pass filter after removing a direct current offset from the signal; an amplifier configured to amplify a signal from the offset remover, and to output the signal; and a comparator configured to output a breaking control signal such that the circuit breaker operates to a circuit breaking position, if the detection signal input to the amplifier is equal to or larger than a reference voltage.

Abstract: A semiconductor module is provided in a power system of an apparatus. The semiconductor module includes a semiconductor switch, a voltage applying device configured to apply a first voltage that is equal to or higher than a rated voltage of the apparatus to the semiconductor switch in an off-state in a case where the apparatus is not in practical use, and a leak detecting circuit configured to detect a leak current from the semiconductor switch. The rated voltage of the apparatus is a rated voltage when the apparatus is in practical use.

Abstract: A detachable electric power information display receptacle module includes an outlet apparatus and an electric power information display apparatus. The outlet apparatus is detachably connected to the electric power information display apparatus and has a power output interface and a power input interface. When an electrical device is connected to the outlet apparatus, the outlet apparatus detects the power consumption of the electrical device. The electric power information display apparatus receives the power consumption from a signal transmission line and displays electric power information. When the electric power information display apparatus is combined with the outlet apparatus, the detachable electric power information display receptacle module is performed as a portable electronic meter.

Abstract: A magnetic field sensor is employed to determine a rotational velocity of an element by sensing frequency variations in a magnetic flux during rotation of the element. The magnetic field sensor includes a sensor face provided with obstacles, such as a series of spaced, substantially parallel grooves arranged perpendicular to a direction in which contamination tends to move across the face during operation of the sensor. The obstacles inhibit movement of contamination across the face such that the contamination does not cause false variations in the magnetic flux which would degrade sensor signals.

Abstract: Disclosed are several examples of a system and method for detecting if an article is being tampered with. Included is a covering made of a substrate that is coated with a layer of an electrically conductive material that forms an electrically conductive surface having an electrical resistance. The covering is configured to at least partially encapsulate the article such that the article cannot be tampered with, without modifying the electrical resistance of the electrically conductive surface of the covering. A sensing device is affixed to the electrically conductive surface of the covering and the sensing device monitors the condition of the covering by producing a signal that is indicative of the electrical resistance of the electrically conductive surface of the covering. A measured electrical resistance that differs from a nominal electrical resistance is indicative of a covering that is being tampered with and an alert is communicated to an observer.

Abstract: A test and measurement instrument including a plurality of input ports; an acquisition system coupled to the input ports and configured to acquire frequency domain data from the input ports; a user interface configured to present frequency domain controls for at least two of the input ports; and a controller configured to adjust frequency domain acquisition parameters of the acquisition system in response to the frequency domain controls such that frequency domain acquisition parameters associated with a first input port can be different from frequency domain acquisition parameters associated with a second input port.

Abstract: The circuit arrangement according to the invention comprises a measuring apparatus that measures an electrical connection, and also one or more conductor patterns. The conductor pattern is connected to the measuring apparatus using an adaptor component, which fits the impedance produced by the conductor pattern to be suitable for the measuring apparatus.

Abstract: According to one aspect, embodiments of the invention provide a current monitoring device comprising a current transformer configured to be removeably coupled to a power line and to generate a reference signal having a level related to a current level of the power line, a sensor circuit connected to the current transformer and configured to be removeably coupled to a communications bus and to convert the reference signal to a digital reference signal and provide a signal indicative of the current level to the communication bus, and a housing containing the sensor circuit and the current transformer.