Abstract: A disconnection detecting system for detecting disconnection of any of a plurality of wires included in a cable is provided. The disconnection detecting system includes: a bending mechanism configured to periodically apply force to the cable so as to cause the cable to reciprocate between a first bending state to be bent in one direction of clockwise and counterclockwise directions and a second bending state to be bent in the other direction; and a measuring apparatus configured to measure a resistance value of the cable, which varies on a time series basis in accordance with the reciprocation of the bending mechanism, and extract a component of a bending frequency for reciprocating between the first and second bending states once from frequency components included in time-series variation in the resistance value of the cable. The disconnection is detected on a basis of amplitude of the component of the bending frequency.

Abstract: A system for monitoring a condition of an article including a conductive coating includes: a measurement device electrically connectable to the conductive coating of the article configured to sense an electrical property of the conductive coating; and a processor electrically connected to the measurement device. The processor is configured to: receive the sensed electrical property of the conductive coating from the measurement device; determine a resistance of the conductive coating based on the received sensed electrical property; determine an estimated remaining usable life of the article based on the determined resistance of the conductive coating; and generate an output signal representative of the determined estimated remaining usable life.

Abstract: The disclosed technology relates generally to semiconductor devices, and more particularly to semiconductor devices including a metal-oxide-semiconductor (MOS) transistor and are configured for accelerating and monitoring degradation of the gate dielectric of the MOS transistor. In one aspect, a semiconductor device configured with gate dielectric monitoring capability comprises a metal-oxide-semiconductor (MOS) transistor including a source, a drain, a gate, and a backgate region formed in a semiconductor substrate. The semiconductor device additionally comprises a bipolar junction transistor (BJT) including a collector, a base, and an emitter formed in the semiconductor substrate, wherein the backgate region of the MOS transistor serves as the base of the BJT and is independently accessible for activating the BJT.

Abstract: The invention involves a multimeter with a meter probe module and phasing probe module capable of wireless communication, proximity measurements, and accurately reading phase degrees. The meter probe module and the phasing probe module can communicate wirelessly, via a wired cable interface, or any combination thereof. The meter probe module and phasing probe module have unique radio frequency serial numbers that allow the probe modules to only communicate with its paired partner probe module while ignoring all other probe modules. The multimeter has a measurement point capable of taking direct contact measurements. The multimeter also has a measurement point capable of taking a voltage measurement without directly contacting the object to be measured. This is accomplished by taking voltage readings from the electric field of the air surrounding said object. The improved multimeter may allow an operator to more safely gather accurate information about an object being measured.

Abstract: A predictive circuit breaker model and system for network application is disclosed. In some embodiments, the techniques described herein relate to a method that includes receiving telemetry data from one or more network applications; generating a set of feature vectors based on the telemetry data, the set of feature vectors associated with at least one network application in the one or more network applications; inputting the set of feature vectors into a machine learning (ML) model to generate a prediction, the prediction including a binary classification of the set of feature vectors; and triggering at least one circuit breaker function in response to the prediction.

Abstract: For diagnosing a railroad switch with a point machine, a first and a second time series of a sensor signal of the point machine are received. Moreover, changes in the first and the second time series are detected indicating changes of operational conditions of the point machine. Furthermore, an event point of a respective change in the first and in the second time series is allocated to a respective component of the railroad switch or of the point machine based on a simulation modelling the respective component. Then for a respective component: event points allocated to that respective component are identified, the sensor signal at a first identified event point in the first time series is compared with the sensor signal at a second identified event point in the second time series, and depending on the comparison a component-specific fault information and an identification of the respective component are output.

Abstract: Examples provide for a self-test circuit. The self-test circuit comprises input circuitry; testing circuitry; and a circuit to be tested, coupled between the input and testing circuitry and comprising at least a piezoelectric crystal. The input circuitry is configured to generate and transfer a predefined electric signal comprising at least a sinusoidal signal through at least the piezoelectric crystal of the circuit to be tested to generate an output signal. The testing circuitry is configured to analyze the output signal.

Abstract: An open loop electrical current transducer including a primary conductor bar, for carrying a current to be measured, a magnetic core having a U shape formed by an end branch and lateral branches upstanding therefrom to free ends, a magnetic circuit gap formed between inner surfaces of the lateral branches at the free ends of the lateral branches, a magnetic field detector positioned in the magnetic circuit gap, and a housing surrounding the magnetic core and a section of the primary conductor bar extending through the magnetic core and beyond the magnetic core either side thereof. The primary conductor bar includes a central portion having a width (Wc) equal to the width of a magnetic field gap (Wg) such that the central portion is clamped between said lateral branches in an interference force fit.

Abstract: A signal transmission circuit and method for testing an integrated circuit (IC) are disclosed. The signal transmission circuit includes: an input circuit, configured to generate a first test signal in response to a first control signal and a clock signal; a transfer chain, including multiple stages of serially-connected transfer circuits, where adjacent transfer circuits in the transfer chain are connected via a through silicon via (TSV), the transfer circuit on one end of the transfer chain is connected to the input circuit, and the multiple stages of transfer circuits transfer the first test signal in stage by stage in response to the clock signal; and multiple signal output ends, where a first test signal input end of each stage of transfer circuit is correspondingly connected to one signal output end. The signal transmission circuit improves the effective utilization rate of a chip in an IC having a TSV test circuit.

Abstract: A magnetic gradiometer sensor comprising a substrate with at least a pair of resonators disposed thereon, wherein each of the at least a pair of resonators is coated with a magnetostrictive film. The resonators are preferably connected to sustaining circuits to form oscillators and the oscillators are preferably used within a phase lock loop to detect a difference in the magnetic field between the at least a pair of resonators.

Abstract: A tester for a frequency-dependent ground fault interrupt wiring device, including: a tester circuit, including: a switch disposed between a first terminal and a second terminal, wherein a leakage current flows through a leakage path between the first terminal and the second terminal when a voltage is applied across the first terminal and the second terminal, a magnitude of the leakage current being determined, at least in part, by a conductivity of the switch; and a waveform generator configured to generate a periodic output signal having a frequency, wherein the switch is driven to modulate the magnitude of the leakage current such that the leakage current has a frequency substantially equal to a frequency of the waveform generator.

Abstract: The present application provide a control method of a power battery heating system. The method includes: controlling all upper bridge arms of a first bridge arm group and all lower bridge arms of a second bridge arm group to be turned on, and controlling all lower bridge arms of the first bridge arm group and all upper bridge arms of the second bridge arm group to be turned off, so as to form a first loop; controlling all the lower bridge arms of the first bridge arm group and all the upper bridge arms of the second bridge arm group to be turned on, and controlling all the upper bridge arms of the first bridge arm group and all the lower bridge arms of the second bridge arm group to be turned off, so as to form a second loop. The method is used to heat the power battery.

Abstract: A method includes: constructing an on-wafer calibration piece model set that includes one or more on-wafer calibration piece models, where each of the one or more on-wafer calibration piece models has a corresponding on-wafer calibration piece; selecting an on-wafer calibration piece model from the on-wafer calibration piece model set; measuring the on-wafer calibration piece utilizing an on-wafer S parameter measurement system that is calibrated using a multi-thread TRL calibration method in a Terahertz frequency band, to obtain an S parameter of the on-wafer calibration piece; and calculating a plurality of different parameters that represent crosstalk of calibration pieces in the on-wafer calibration piece model, according to an admittance calculated according to the S parameter and an admittance formula corresponding to the on-wafer calibration piece model.

Abstract: The invention concerns a device (1) for measuring at least one parameter of a motor vehicle, the device (1) comprising at least one reference resistor (R0) of a predetermined value and at least two measuring branches (K1, K2), each of the two measuring branches comprising at least a first element comprising a resistor (R0) or a resistive sensor (R2), capable of being connected to a voltage supply (Vcc), and a second element comprising a resistor or a resistive sensor (R1, R3) capable of being connected to earth (M), the first element and the second element being connected together at a mid-point (A, B), the mid-points (A, B) of the at least two measuring branches (K1, K2) being connected together in pairs by a third element comprising a resistor or a resistive sensor (R4).

Abstract: The present disclosure provides a switching matrix system and an operating method thereof for semiconductor characteristic measurement. The switching matrix system is configured to: detect an assembly of at least one switching matrix module inserted into a plurality of slots of the switching matrix system; determine a user interface according to the assembly of the at least one switching matrix module inserted into the slots, wherein the user interface includes an operable object corresponding to the assembly; and provide the user interface.

Abstract: A multi-functional sensor assembly includes an electrically non-conductive substrate defining at least a distal region, intermediary region, and proximal region that are each covered with electrically conductive traces. The proximal region is configured to be exposed to a media to be sensed and the distal and intermediary regions are configured to be protected from the media. The electrically conductive traces comprise at least electrical circuits to sense temperature and flow of the media and one or more electrodes to sense one or more of conductivity, oxidation reduction potential (ORP), and acidity (pH) of the media.

Abstract: A distance measuring apparatus includes: a DTC generator unit that generates DTC signals having edges delayed to define time segments; a template generator unit that generates template signals consecutively in a pre-designated number within the time segments in response to the DTC signals; a coarse time determiner unit that determines the time segment in which a delayed signal is received by calculating correlations with the consecutively generated template signals; a fine time measurer unit that determines the time at which the delayed signal is received within the time segment determined at the coarse time determiner unit from the results of calculating correlations between multiple template signals within the determined time segment and the delayed signal; and a distance calculator unit that calculates the total delay duration of the delayed signal and calculates the distance to the measurement target object from the calculated delay duration.

Abstract: Disclosed herein is a system for time aligning electric power system measurements at an intelligent electronic device (IED) using samples and sample time offset from merging units. The merging units do not require access to a common time signal. The IED does not require storage of a communication latency with the merging units. The sample time offset corresponds to a latency between obtaining the sample and receipt of the sample at the IED. The IED aligns samples from various merging units using sample time offset values communicated from the merging units to the IED. The IED performs monitoring and protection functions using the time aligned samples.

Abstract: A thin film has a band gap of 2.2 eV or more and in which a crystal includes an atomic vacancy and an electron, a microwave irradiation system configured to irradiate the thin film with a microwave in response to driving from outside, an excitation unit configured to excite the electron included in the thin film in response to driving from outside, and a detector configured to detect, as an electric signal, at least either one of an intensity of light outputted from the thin film when the electron transitions from an excited state to a ground state and a change in conductivity of the thin film based on excitation.

Abstract: A drone deployable power line fault detection sensor. The sensor can include a clamp mechanism having a clamp ring with first and second ring portions movably connected to each other and a resilient member positioned to urge the first and second ring portions toward a closed configuration. A latch can be positioned to retain the first and second ring portions in an open configuration whereby the sensor can be positioned on a power transmission line with a drone. A trigger can be coupled to the latch and operative, under the weight of the sensor, to disengage the latch thereby releasing the first and second ring portions to close around the transmission line under the force of the resilient member. One or more sensors are carried by the clamp mechanism and positioned to detect a line fault on the power transmission line, which is reported to a power station control system to de-energize the power transmission line.