Abstract: Disclosed is an electronic device comprising: a gyro sensor; an acceleration sensor for outputting acceleration data about motion of the electronic device; a geomagnetic sensor for outputting geomagnetic data about a magnetic field around the electronic device; and a low-power processor electrically connected to the gyro sensor, the acceleration sensor and the geomagnetic sensor. The low-power processor: operates the acceleration sensor while the gyro sensor is deactivated to determine a motion pattern of the electronic device; drives the geomagnetic sensor to acquire geomagnetic data such that, if the motion of the electronic device corresponds to a predetermined first motion pattern, the geomagnetic data is acquired at a first sample rate, and, if the motion corresponds to a predetermined second motion pattern, the geomagnetic data is acquired at a second sample rate higher than the first sample rate; and calibrates the geomagnetic sensor on the basis of the geomagnetic data.

Abstract: Provided herein are systems, devices and methods for detection of unsanctioned implantation of a powerline communication module in a product under test, without the need to disassemble the product under test.

Abstract: A method for monitoring a system for transmitting electrical power for a network for transmitting DC electrical power. The method involves determining, along a measurement segment, a profile of a temperature parameter, determining a theoretical leakage current between the grounding connections of the measurement segment, taking into account the temperature parameter profiles and the load current and voltage, measuring the leakage current between the grounding connections of the measurement segment, and generating an alert if there is a difference between the theoretical and measured leakage current.

Abstract: A capacitor inspection method includes applying a direct current (DC) bias voltage to an inspection capacitor with a value which is equal to or lower than a rated value of the inspection capacitor; inputting a first electric signal to the inspection capacitor, switching the input electric signal from the first electric signal to a second electric signal having a different waveform than the first electric signal and thereby generating a vibration containing a transient vibration in the inspection capacitor and eliciting a reaction voltage as an output from the inspection capacitor which contains a vibration response voltage generated by the vibration and the DC bias voltage; and measuring a transient response waveform from the vibration response voltage contained in the reaction voltage. A capacitor inspection apparatus includes a holder for the inspection capacitor; a DC voltage supply device; a signal generator; and a voltage or current measurement device.

Abstract: A power conversion apparatus includes a power conversion circuit configured to convert DC power into three-phase AC power; and a control device configured to generate a two-phase negative-phase current from a three-phase AC current output from the power conversion circuit, and to detect an open phase on an output side of the power conversion circuit based on a magnitude of an amplitude of the two-phase negative-phase current. The control device may be configured to determine an occurrence of the open phase when the magnitude of the amplitude of the two-phase negative-phase current increases, and an electric current of at least one phase of the three-phase AC current decreases.

Abstract: The present invention relates generally to the field of disposable assay test devices, particularly for use in point-of-care assays. The invention further relates to the use of such devices, including kits comprising such devices, to facilitate the accurate measurement of the levels of sepsis in the blood using electronic measurements.

Abstract: To enable early detection of AC insulation faults, or to permit easier, faster and more accurate measurement of small currents in inverters, a current measuring circuit for a converter is provided. The current measuring circuit has a positive supply rail, a negative supply rail, a reference potential rail and a current measuring device that contains a Y-capacitor and a current sensor connected in series therewith. The load current can be decoupled from the measurement current through the at least one Y-capacitor, so that at high load currents even small fault currents can be acquired reliably with the current sensor.

Abstract: Systems and methods for performing over-the-air verification tests for radar. A test chamber includes multiple sections, the sections separated by metal walls. The inner surfaces of the metal walls include absorbers. Each section includes defined testing devices to verify a defined function of a radar device. The defined testing devices can include a horn antenna and corner reflector. Each section has a defined number of rows. Each row has a defined testing device. Test fixtures hold a defined number of the radar devices in correspondence with the defined number of rows. The defined number of the radar devices placed on the test fixture via a placement device. A positioner to align under the sections and move the test fixtures through the sections of the test chamber and a controller to control operation of the positioner, the radar devices, and the placement device to execute over-the-air verification of the radar devices.

Abstract: A system for checking the electrical insulation in converters for electric cars comprises at least one voltage generator connected to at least one line to be monitored of a high-voltage converter for electric vehicles and connected to the ground of said converter, and at least one current detection unit operatively connected to said voltage generator and configured to detect any current possibly present on the voltage generator and to generate a warning signal in the event of detection of the current.

Abstract: The present invention relates to a method for determining a state of a capacitive voltage transformer which, on its primary side, comprises a capacitive voltage divider having a first capacitor and a second capacitor. The first capacitor has a high-voltage connection for connection to a high voltage and the second capacitor has a ground connection. A first resonant frequency is determined by way of a plurality of first short-circuit impedance measurements at different frequencies on a secondary side of the capacitive voltage transformer while the high-voltage connection is connected to earth. A second resonant frequency is determined by way of a plurality of second short-circuit impedance measurements at different frequencies on the secondary side of the capacitive voltage transformer while the high-voltage connection is open. A capacitance ratio of the capacitive voltage divider is determined on the basis of the first resonant frequency and the second resonant frequency.

Abstract: The present invention is directed to an electro-optical sensor for high intensity electric field measurement. The electro-optical sensor was used to measure a strong 118 MV/m narrow pulse width (˜33 ns) electric field in the magnetically insulated transmission line (MITL) of a pulsed power accelerator. Accurately measuring these high fields using conventional pulsed power diagnostics is difficult due to the strength of interfering particles and fields. The electro-optical sensor uses a free space laser beam with a dielectric crystal sensor that is highly immune to electromagnetic interference and does not require an external calibration.

Abstract: A circuit board includes an insulating substrate having a first surface and a second surface opposite to the first surface, a solid conductor located inside the insulating substrate, a first via conductor connected to the solid conductor from a side of the first surface, and a second via conductor connected to the solid conductor from a side of the second surface. The solid conductor has a cutout that intersects a line segment that connects a node of the first via conductor and a node of the second via conductor to each other.

Abstract: A system comprising an array of solar panels, each panel including an electronic control module, wherein the panels are all connected in electrical series with each other and to a switch and to a string inverter, may be signaled to power down each panel to a safe output at its output terminals. The method includes sensing output wave forms of a module to be the result of its own DC-DC converter output or to be at variance with the expected output. Output wave forms at variance indicate that the control module is connected in electrical series with the input capacitance of the string inverter. If the output is as expected, the control module is deemed to not be connected to the capacitance of the string inverter as a result of the electrical series switch being open. The module then immediately drives its output to a safe level.

Abstract: A display device includes a substrate in which a cut-out portion is defined, and a first conductive layer disposed on the substrate and including a first signal line and a first test line, where the first test line crosses the cut-out portion, and one end portion of the first test line includes a first pad region that is expanded.

Abstract: Described are systems and techniques for extracting frequency and voltage harmonic transients corresponding to individual load events. Such systems and techniques can be used to make electrical loads aware of the operation of other loads in an electric grid. Thus, awareness is achieved using information derived only from a utility voltage waveform at a load. Also described are systems and techniques for incorporating such awareness into load controllers which allows loads to autonomously meet system level objectives in addition to their individual requirements.

Abstract: The present disclosure provides a method and system for creating dipole moment model. The method is applied to a tested circuit and includes: performing a near-field measurement on the tested circuit, to obtain a near-field electric field and a near-field magnetic field related to the tested circuit; performing a two-dimensional divergence calculation on the near-field electric field and the near-field magnetic field, to obtain a near-field electric divergence field and a near-field magnetic divergence field; performing a convolution calculation on the near-field electric divergence field and the near-field magnetic divergence field with a digital filter; and building a dipole moment matrix equivalent to the tested circuit according to a result of the convolution calculation.

Abstract: An apparatus is provided that is implemented to enable multiple tests of different types, such as a direct current (DC) test and/or a radio frequency (RF) test of a semiconductor device. The apparatus includes a microelectromechanical systems (MEMS) switch block coupled between the semiconductor device and automatic testing equipment (ATE). The apparatus is configured to enable/disable a DC path or an RF path to switch between a DC test and an RF test without reconfiguring the connections between the semiconductor device and the ATE. The DC path is used to perform a DC contact test for one or more pins of the semiconductor device. The RF path is used to perform an RF test for the semiconductor device.

Abstract: An electronic device including a phase detector is provided. The phase detector includes a first transistor, a second transistor, a third transistor, a fourth transistor, and a first equalizer device. The first transistor has a first input terminal configured to receive a first signal. The second transistor has a second input terminal configured to receive a second signal. The third transistor is electrically connected to the first transistor and has a first output terminal. The fourth transistor is electrically connected to the second transistor and has a second output terminal. The first equalizer device is connected between the first output terminal and the second input terminal.

Abstract: A socket for electrically connecting a first electrical component, the upper surface of which is pressed upon by a pressing member, and a second electrical component which is positioned below the first electrical component, said socket being equipped with: a socket main body which has a placement surface on which the first electrical component is placed; and a holding part which is provided to the socket main body, holds the first electrical component to the socket main body by engaging the first electrical component in a pressed state in which the first electrical component is pressed upon by the pressing member, and releases the engagement with the first electrical component when the pressing member moves a prescribed distance away from the position which corresponds to the pressed state.

Abstract: Provided are a mechanical property measuring apparatus and method that can accurately measure a mechanical property through physical quantities, etc. A mechanical property measuring apparatus (100) comprises: a physical quantity measuring unit (5) configured to measure a plurality of physical quantities of a measured object that includes a substance and a film on a surface of the substance; a calculation model generating unit (81) configured to select a plurality of pieces of learning data and generate a calculation model for calculating a mechanical property of the substance; and a mechanical property calculating unit (82) configured to calculate the mechanical property of the substance using the calculation model generated and at least two of the plurality of physical quantities, wherein the selection physical quantities include at least one physical quantity measured using a first measurement signal and at least one physical quantity measured using a second measurement signal.