Abstract: Systems and methods are provided for testing a threshold energy required to cause a latchup on an electronic component. An exemplary method includes applying a series of laser pulses to a testing object with a pulsed laser unit. The testing object is connected to a testing circuit which can measure the energy of each of the series of laser pulses, and detect whether a pulse of the series of laser pulses resulted in a latchup on the testing object. Upon detecting the pulse, the method provides for logging the energy of the pulse using a recording unit and logging the latchup status of the test device. If a latchup is detected, the testing circuit automatically mitigates the latchup event.

Abstract: A measurement system includes a source unit to provide a source signal to a sample and a voltage source and/or a current source and a memory. The system also includes a measurement unit configured to acquire from the sample an measurement signal that may be responsive to the source signal and a voltage measuring unit, a current measuring unit, and/or a capacitance measuring unit, and a memory. The system also includes a control unit including a digital signal processing unit; a source converter; a measurement converter. The system further includes a synchronization unit configured to synchronize clocks of the digital signal processing unit, the source converter, the measurement converter, the source unit, and the measurement unit; a calibration unit for calibrating aspects of the system including the control unit; and a reference voltage supply configured to supply a common reference voltage for the control unit.

Abstract: A method for accurate fault location in a multi-type cable connection system is provided that includes, first normalizing the measurement parameters, then grouping the data, calculating compensation correction, finding the maximum value of the data, and comparing whether the cable has faults or not. By means of a blended data automatic analysis algorithm of the method, in the presence of multiple cables, data obtained through one-time measurement can be accurately identified to determine specific data of each scanning point that belongs to each cable, and after data allocation is completed, each group of data is separately corrected by using cable parameters corresponding to the group of data, thereby obtaining an accurate fault position and a DTF return loss result.

Abstract: Disclosed is a multi-core cable fault classification system which includes a reference signal measurement unit configured to measure a core-specific reference signal generated by applying an electromagnetic signal to a multi-core cable having at least two cores, a reflected-signal measurement unit configured to measure a core-specific reflected signal generated by reflecting the generated core-specific reference signal at a point of the multi-core cable, a data processing unit configured to extract, from time-series data for the measured core-specific reflected signal, core-specific partial time-series data based on whether baseline data of the multi-core cable is present, configured to transform the core-specific partial time-series data into a time-frequency distribution, and configured to extract faulty-core determination data, and a faulty core classification unit configured to classify a fault core from the multi-core cable by inputting the extracted faulty-core determination data to a neural network.

Abstract: Techniques for calculating a per-tenant cost in a multi-tenant data storage system. In one example, a method comprises the following steps. One or more cost contribution factors associated with a storage provider entity operating a data storage system for a plurality of tenants of the data storage system are identified. One or more cost items chargeable to each of the plurality of tenants are identified, the one or more cost items being associated with usage of the data storage system by each of the plurality of tenants. The one or more cost contribution factors associated with the storage provider entity are correlated with the one and more chargeable cost items for each of the plurality of tenants. A respective cost value payable by each tenant is determined based on the correlation step. In one further example, the methodology calculates a fixed energy cost associated with storing tenant data and a dynamic energy cost associated with the tenant accessing the stored data.

Abstract: A device including a first voltage domain and a second voltage domain is provided, the voltage domains being separated by an isolation barrier. In addition, the device includes a scratch detection circuit including a first and a second electrode at a distance of less than 2 ?m.

Abstract: An active isolation detection method may be used with an electrical system having a battery pack connected to a high-voltage bus. The bus has positive and negative bus rails, each having a respective rail-to-ground voltage. The method may include connecting variable resistance element to the high-voltage bus, and determining input information indicative electrical characteristics of the battery pack, the high-voltage bus, and/or a charging station. The method includes varying a bias resistance of the high-voltage bus, via control of the variable resistance element, e.g., via duty cycle control of a binary switch in series with a bias resistor, to produce a varied bias resistance based on the input information. A target voltage shift is achieved on the high-voltage bus as a target level of change in one of the rail-to-ground voltages. An isolation resistance of the electrical system is determined via the controller using the varied bias resistance.

Abstract: A modular power tile and method of operating a power distribution system includes generating a predetermined identifying pattern, by a reflectometry module of a power distribution node, injecting, by the reflectometry module, the predetermined identifying pattern, receiving, at the reflectometry module, a reflected incident signal of the predetermined identifying pattern, and scheduling a maintenance task.

Abstract: A first object for assembly with a second object, the first object comprising: a body having a first mating portion; and a first electronic element fabricated on the body; wherein the first electronic element is provided to establish an electrical coupling with a second electronic element fabricated on one of: the body and the second object, wherein a second mating portion is provided on the second object, and wherein the electrical coupling is configured to provide a measurable output for positioning the first mating portion at a desired position relative to the second mating portion according to an analysis of the measurable output against a predetermined reference output.

Abstract: A system for self-discharge prognostics for vehicle battery cells with an internal short circuit includes a plurality of battery cells and a voltage sensor providing open-circuit voltage data over time for each battery cell. The system further includes a computerized prognostic controller operating programming to monitor the open-circuit voltage data over time for each of the plurality of battery cells and evaluate a voltage drop rate through a time window for each of the plurality of battery cells based upon the open-circuit voltage data. The controller further identifies one of the plurality of battery cells to include the internal short circuit based upon the voltage drop rate and signals an alert based upon the one of the plurality of battery cells including the internal short circuit.

Abstract: A method for altering surface charge on an insulating surface of a first sample includes generating first plasma inside a plasma source, causing the first plasma to diffuse into a first vacuum chamber to generate second downstream plasma, immersing the first sample in the second downstream plasma, and applying a first bias voltage to a conductive layer of the first sample, or applying a first bias voltage to a metal holder that holds the first sample.

Abstract: An apparatus includes a mechanical switch and a solid-state switch, such as a diamond switch or antiparallel-connected thyristor pair, coupled in series between an AC source and the load, such as a substation input transformer. The control circuit may be configured to connect the AC power source to the load by closing the mechanical switch and turning on the solid-state switch thereafter. The control circuit may be configured to interrupt a connection of the AC source to the load by turning off the solid-state switch and closing the mechanical switch thereafter. Operations of the switches may be coordinated with a fuse coupled in series with the solid-state switch to address different types of fault conditions.

Abstract: A method is provided for calibrating impedance-spectroscopic biomass sensors that are embodied to detect information regarding the quantity and/or size of living cells in a biomass by means of an electric field having a periodically changing field direction A calibration suspension encompasses an electrically conductive viscously flowable or viscoelastic carrier substance and electrically conductive solid particles and/or solid semiconductor particles received therein. An electric field is generated having a periodically changing field direction, which acts on the calibration suspension. At least one permittivity value is detected, respectively representing a permittivity of the calibration suspension, in a context of at least two electric fields having different field direction change frequencies. A difference value is ascertained that represents a difference between the detected permittivity values. The difference value is compared with a reference value associated with the calibration suspension.

Abstract: A hairpin type stator inspection apparatus is provided for testing performance of a stator wound with hairpin type stator coils. The hairpin type stator inspection apparatus includes: a conveyor provided on a frame for transferring the stator including a plurality of stator terminals along a predetermined path: a plurality of clamp terminals, which are installed to be movable to the frame by a driver in up and down, front and rear, and left and right directions in order to clamp the stator terminals: a controller that applies a driving control signal to the driver to change a position of the clamp terminals according to a position of the stator terminals; and an inspection portion that applies power to the stator terminals through the clamp terminals and inspects the electrical circuit of the stator.

Abstract: A method includes attaching a sensor calibration tool to a drill string. The sensor calibration tool includes a first tool sensor configured to measure a first operational parameter. A first tool sensor measurement of the first operational parameter is received from the first tool sensor, where the drill string is disposed at least partially within a wellbore and supported by a surface rig system and the sensor calibration tool is positioned on the drill string at a surface location proximate to the surface rig system. A first rig sensor measurement of the first operational parameter is received from a first rig sensor positioned on a first surface component of the surface rig system. The first rig sensor is calibrated based on a comparison of the first tool sensor measurement with the first rig sensor measurement.

Abstract: A touch control test device and a touch control test method are provided, and the touch control test device includes: a telescopic mechanism with an adjustable length; a touch control component connected to the telescopic mechanism so that the telescopic mechanism is configured to drive the touch control component to tap the touch screen; an acquisition unit configured to acquire an actual detection coordinate point where the touch control component taps the touch screen; a calculation unit configured to calculate a touch control coordinate error between a target coordinate point corresponding to the actual detection coordinate point where the touch control component taps the touch screen and the actual detection coordinate point. The touch test device can achieve a tap touch control test of the touch screen.

Abstract: A sensor assembly includes a base, a sensor body mounted to the base and rotatable around an axis relative to the base, a sensor window fixed relative to the sensor body, a sensing apparatus inside the sensor body and having a field of view through the sensor window, a vapor chamber fixed relative to the sensor body, and a heat pipe extending from the sensor body to the vapor chamber. The vapor chamber is spaced radially outward from the sensor body relative to the axis and has a curved shape extending circumferentially around the axis.

Abstract: Provided is a water leakage detection device, including: a pair of metal electrodes containing a first end and a second end; a warning device connected to the first end of the pair of metal electrodes, and configured to issue a warning based on a potential difference between the pair of metal electrodes; and a power supply which is connected to the second end of the pair of metal electrodes, and configured to apply a voltage between the pair of metal electrodes.

Abstract: A method and a system for online monitoring of a health status of an insulated-gate bipolar transistor (IGBT) module are provided, which belong to the field of IGBT status monitoring. In order to overcome the inability to real-time monitor health statuses of existing IGBT modules, the method of the disclosure includes the following steps. A current sensor is used to measure a collector current of each IGBT module. A collected current value is substituted into a simulation model to obtain a current imbalance rate. A failure module is located according to the current imbalance rate and temperature to achieve the objective of monitoring an IGBT health status.

Abstract: An ECU is configured to execute SOC estimation control for estimating an SOC of a battery. The ECU obtains “first voltage” indicating an OCV of the battery in the SOC estimation control. The ECU controls an engine and a PCU such that the battery is charged with an amount of electric power equal to or larger than a prescribed amount, when the first voltage is within a voltage range where hysteresis occurs. The ECU obtains “second voltage” indicating an OCV of the charged battery, and estimates the SOC of the battery from the second voltage.