Abstract: The present disclosure provides a motion detection member for detecting motion of a wearing body, the motion detection member including: a wearable part that is to be worn on the wearing body, the wearable part including an expanding/contracting portion that is configured from an expandable/contractible fabric material that expands/contracts as a result of the motion of the wearing body; and a wiring electrode part including: a wiring part provided at at least a portion of the expanding/contracting portion of the wearable part, the wiring part including a first wiring part including a conductive linear body and a second wiring part including a conductive linear body; and an electrode part including a first electrode part electrically connected to the first wiring part and a second electrode part electrically connected to the second wiring part.

Abstract: An abnormality determination system for a photovoltaic module determines the presence or absence of an abnormality in each of a plurality of photovoltaic cells constituting the photovoltaic module and connected in series; controls an irradiation state of incident light on a photovoltaic cell to be subjected to determination between at least a first irradiation state and a second irradiation state in which a short-circuit current of the photovoltaic cell to be subjected to determination is larger than a short-circuit current of the photovoltaic cell to be subjected to determination in the first irradiation state; irradiates the photovoltaic cell to be subjected to determination with modulated light different from the incident light; detects a minute change in an output current of the photovoltaic module in accordance with the irradiation of the photovoltaic cell to be subjected to determination with the modulated light; outputs a detection result as a phase detection unit output; calculates a ratio between a p

Abstract: Sonde devices for providing magnetic field signals for use with utility locators or other devices are disclosed. In one embodiment a sonde device includes a housing, a core comprising a plurality of core sections, and one or more support structures, which may include windings. Circuit and/or power supply elements may be disposed fully or partially within the core to control generation of predefined magnetic field frequencies and waveforms.

Abstract: To determine an AC insulation resistance between the AC connections of an inverter and a ground potential, the AC connections are connected to an AC energy sink in an emergency standby operation in order to transmit energy from a DC energy source to an AC energy sink and an insulation test is performed in emergency standby operation. An AC fault current flowing between an AC connection and the ground potential is determined, and the AC insulation resistance is calculated from the AC fault current.

Abstract: A method of analysing ions is disclosed comprising: (i) subjecting ions of an analyte molecule to different activation levels at different times so as to cause the ions to have different mobilities at said different times, wherein the activation level is varied in a plurality of cycles, and wherein the activation level is varied between said different levels during each of the cycles. The method uses an ion mobility separator or scanned ion mobility filter to determine the mobilities of the ions for said different activation levels; and correlates the determined mobilities with their respective activation levels so as to thereby obtain a fingerprint for the analyte molecule.

Abstract: The resistance detection sensor is configured to detect the electrical resistance value of a liquid. This resistance detection sensor includes a pair of electrodes, a DC voltage application unit, an AC voltage application unit, and a control unit. The pair of electrodes are immersed in a liquid. The DC voltage application unit applies a DC voltage having a first polarity between the pair of electrodes. The AC voltage application unit applies an AC voltage between the pair of electrodes. The control unit calculates the electrical resistance value of the liquid, in a state where the DC voltage is applied between the pair of electrodes by the DC voltage application unit. The control unit controls the AC voltage application unit so as to apply an AC voltage starting from a second polarity opposite to the first polarity at a predetermined time interval between the pair of electrodes.

Abstract: The faulty transformer partial discharge, vibration, combustible gases, and sound frequency monitor and alarm is an electric circuit. The faulty transformer partial discharge, vibration, combustible gases, and sound frequency monitor and alarm is a diagnostic tool. The faulty transformer partial discharge, vibration, combustible gases, and sound frequency monitor and alarm comprises a control circuit, a housing structure, and a transformer structure. The housing structure contains the control circuit. The housing structure attaches the control circuit to the transformer structure. The control circuit captures audible sounds generated by the transformer structure. The control circuit analyzes the captured audible sounds.

Abstract: A voltage presence determination system intended to be connected to a voltage measurement sensor for at least one phase of a high-voltage electrical network. The system comprises, for the at least one phase: a visual indicator of the presence of a voltage measured by the voltage measurement sensor, referred to as the measured voltage, a first output terminal configured to receive a first output signal, a second output terminal configured to receive a second output signal, and a plurality of linear components. The system is configured so that the first and second output terminals are functionally isolated from one another and functionally isolated from the visual indicator only by the plurality of linear components.

Abstract: A health signature of each switching device in a control system is estimated using system parameters such as a DC-link voltage, three-phase voltages, three-phase currents, and temperature. The switching devices can be implemented as transistors, and a health signature for each transistor may be an on-state resistance or an on-state voltage of the transistors. For example, the on-state resistance for a metal-oxide-semiconductor field-effect transistor (MOSFET) functions as a health signature. Alternatively, the on-state voltage is used as a health signature for an insulated-gate bipolar transistor (IGBT). Additionally, a junction temperature is estimated for each transistor. Using the estimated health signatures and the junction temperatures, the remaining useful life of each transistor is estimated.

Abstract: A power electronics module for a test arrangement for testing a power electronics controller includes: supply connections for supplying energy; at least one load connection for providing at least one electrical connection variable; a supply circuit for providing electrical control voltages; a selection circuit with circuit breakers for switching one of the electrical control voltages onto the at least one load connection of the power electronics module; and an interface for controlling the circuit breakers. The supply connections of the power electronics module are AC supply connections. The supply circuit is a multi-phase circuit for providing a plurality of phase voltages on a plurality of phase conductors. The selection circuit connects a phase conductor to the at least one load connection of the power electronics module.

Abstract: An antenna assembly for emitting microwaves comprises a dielectric hollow conductor element and a support element, wherein the hollow conductor element has an electrically conductive surface along a circumferential lateral face, the hollow conductor element has an electrically non-conductive emission face, and the hollow conductor element has a coupler receptacle. The support element contains a material having a modulus of elasticity of no less than 50 GPa. The support element surrounds the hollow conductor element at least along the lateral face. The hollow conductor element is fixed in the support element. The support element has an emission opening, and the emission face aligns with the emission opening. The hollow conductor element has a permittivity of no less than 8 at 2 GHz, the hollow conductor element containing a ceramic material, in particular aluminium oxide, zirconium oxide or titanium oxide.

Abstract: An over-the-air (OTA) test system is described. The OTA test system includes an antenna positioner with at least one test antenna. The OTA test system further including a DUT positioner, wherein the DUT positioner is configured to hold a device under test in a measurement zone. The antenna positioner is configured to rotate the at least one test antenna around the measurement zone by adapting an elevation angle of the test antenna. The DUT positioner is configured to tilt the device under test by a predefined angle with respect to a height direction of the OTA test system, thereby adapting an elevation angle of the device under test. Further, an OTA test method is described.

Abstract: Disclosed is an apparatus for inspecting a defect of a display panel. The apparatus for inspecting includes the display panel that displays an image, an input sensor that is disposed on the display panel and senses an input applied from outside, a sensor driving part that drives the input sensor, and an inspection part that is connected with the sensor driving part, sets a frequency of the input sensor to an inspection frequency, and detects the defect of the display panel based on a change in a jitter occurring when the input sensor is driven at the inspection frequency. The inspection frequency includes a harmonic frequency of a driving frequency of the display panel.

Abstract: The invention relates to a fault current detection device for an overhead power line. The fault current detection device is configured to apply a fault detection algorithm which includes a duration test and a return to normal test. The fault current detection device reports a fault current to a remote fault monitoring device only if both tests are passed. The fault monitoring device is configured to apply an alert ranking algorithm to determine which of a plurality of the fault current detection devices is closest to a fault. The alert ranking algorithm includes identifying or establishing a location of an upstream source associated with the fault current detection devices and classifying the fault current detection device which is the furthest downstream from the upstream source as the closest to the fault. A fault current detection method and a fault detection system and method are disclosed.

Abstract: The present disclosure relates to a shield box for testing a mobile telecommunication terminal in which an increase in temperature in a shield box is prevented in performing various tests on a mobile telecommunication terminal having multiple antennas in an Over The Air (OTA) method to perform a stable test. The shield box for testing a communication terminal of the present disclosure includes a shield box main body made of metal, having a jig entrance formed on the front side, and equipped with a vent which a plurality of vent holes of 1 to 10 mm in size are formed on the upper and rear sides, respectively; a test jig assembly installed to be able to enter and exit through the jig entrance while mounting a PCB for non-contact wireless connection in which a plurality of non-contact wireless connection parts that are wirelessly connected to a mobile telecommunication terminal and transmit and receive signals are arranged; and a ventilation fan mounted on the upper vent or the rear vent.

Abstract: Systems and methods for identifying and managing stress conditions, risk state or aging state associated with capacitors associated with electrical equipment in an electrical power system are disclosed herein. In one aspect, a method for identifying and managing stress conditions, risk state or aging state associated with at least one capacitor includes detecting at least one of motion of and sounds associated with the at least one capacitor, and analyzing at least the detected at least one of motion of and sounds associated with the at least one capacitor to identify possible stress conditions, risk state or aging state associated with the at least one capacitor and associated components. In response to identifying possible stress conditions, risk state or aging state, probable impacts of the possible stress conditions, risk state or aging state on the at least one capacitor and associated components may be determined.

Abstract: In accordance with an embodiment, a circuit includes a plurality of comparators disposed on an integrated circuit, the plurality of comparators having inputs coupled to a monitored power supply line; and a voting circuit having inputs coupled to outputs of the plurality of comparators. An output of the voting circuit is configured to provide a signal indicative of a brown out condition of a power source coupled to the monitored power supply line.

Abstract: Systems and methods for identifying one or more points of interest in pipes or drain lines are described. Examples of points of interest include blockages caused by debris in the pipe or drain line. The systems are incorporated into drain cleaning machines. Also described are drain cleaning machines utilizing the systems.

Abstract: An insulation resistance detection circuit is coupled to a positive end and a negative end of a DC power source, and is used to detect a positive insulation resistance between the positive end and a ground point and detect a negative insulation resistance between the negative end and the ground point. A detection unit sets a first estimated resistance and a second estimated resistance, and acquires a first voltage based on turning on the switch and acquires a second voltage based on turning off the switch. The detection unit calculates a third voltage and a fourth voltage according to the first estimated resistance and the second estimated resistance so as to detect the positive insulation resistance and the negative insulation resistance when the third voltage is equal to the first voltage and the fourth voltage is equal to the second voltage.

Abstract: The MEMS probe card of the invention belongs to the technical field of IC manufacturing industry, and specifically relates to the manufacturing of micro-electromechanical systems, testing of semiconductor bare chip and related key technologies; From top to bottom, the probe card comprises a stiffener, a PCB board, an adapter layer, a guide plate and a MEMS probe; the invention not only discloses a MEMS probe card, but also discloses a new manufacturing process of a MEMS probe card, including the structure of MEMS probe card, the etching equipment and method of guide plate-MEMS probe structure template, the probe positioning method of etching the guide plate-MEMS probe structure template, the manufacturing method of the guide plate-MEMS probe structure and the docking device and method of the guide plate-MEMS probe structure and the adapter layer to finally realize the manufacturing of a submicron-sized MEMS probe card.