Abstract: A measurement method includes: an acceleration data acquisition step of acquiring acceleration data output from an accelerometer that observes an observation point of a structure when a first moving body moves on the structure; a speed vibration component calculation step of calculating a first speed vibration component by performing integration processing and filter processing on an acceleration based on the acceleration data; and a displacement amplitude estimation step of estimating, based on the first speed vibration component and a conversion function calculated in advance based on displacement data output from a displacement meter that observes the observation point when a second moving body moves on the structure, a displacement amplitude of the structure when the first moving body moves on the structure.

Abstract: Evaluation arrangement for a thermal gas sensor with at least one heater and at least one detector. The evaluation arrangement is configured to obtain information about an amplitude of a detector signal of a first detector, and information about a first phase difference between a heater signal and the detector signal of the first detector. In addition, the evaluation arrangement is configured to form as an intermediate quantity, dependent on the information about the amplitudes of the detector signal and dependent on the information about the first phase difference, a combination signal, and to determine information about a gas concentration or information about a thermal diffusivity of a fluid on the basis of the combination signal.

Abstract: A chip removing apparatus for a repair process of a ?LED display comprises: a stage unit on which a substrate having at least one chip arranged thereon is mounted; a film stage on which an adhesive film is mounted such that the adhesive film is located on the substrate; a head having a pin which pressurizes the adhesive film such that the chip is attached to the lower surface of the adhesive film; and a head driver for moving the head.

Abstract: Disclosed is a method for identifying faults in a drive. A normalized spectrum is determined, which is dependent on a speed. Peak values in the spectrum are identified. A first peak value is identified at a first frequency and a second peak value is identified at a second frequency. A pattern is identified based on the first frequency and the second frequency.

Abstract: A method of transmitting power by a wireless power transmitter, the method including sequentially transmitting a sensing signal a plurality of times to a wireless power receiver through a plurality of transmission coils to sense the presence of the wireless power receiver; identifying transmission coils that receive a signal strength indictor transmitted by the wireless power receiver in response to the plurality of sensing signals; and selecting, as a power transmission coil, the transmission coil that has received the signal strength indicator having the largest amount or the largest value among the transmission coils that have received the signal strength indicator, receiving a plurality of packets including a foreign object detection (FOD) status packet from the wireless power receiver; determining whether a foreign object is present in a charging area of the wireless power transmitter on the basis of the FOD status packet; and transmitting, to the wireless power receiver, a response signal indicating whe

Abstract: An excitation current detection circuit is disclosed. A transformer comprises a primary winding, an auxiliary winding, and a secondary winding. A first voltage detector detects a positive voltage of an auxiliary winding voltage. A second voltage detector detects a negative voltage of the auxiliary winding voltage. A first voltage controlled oscillator generates a first clock with a frequency proportional to the positive voltage during a period when the auxiliary winding voltage is the positive voltage. A second voltage controlled oscillator generates a second clock with a frequency proportional to the negative voltage during a period when the auxiliary winding voltage is the negative voltage. A counter outputs a counter value, which is added in one of cycles of the first clock and the second clock and subtracted in the other cycle of the first clock and the second clock as a detected value of an excitation current.

Abstract: A battery management apparatus according to the present disclosure includes a memory to store a charging sequence table that records a correspondence relationship between first to mth temperature ranges, first to mth SOC lists and first to mth current lists, a sensing unit to detect a voltage, a current and a temperature of a battery, and a control unit. Each of the SOC lists defines first to nth SOC ranges. The control unit determines a current SOC of the battery based on the detected voltage and the detected current. The control unit determines a temperature range of interest, a SOC list of interest and a current list of interest based on the detected temperature. The control unit determines a remaining charging time required to charge the battery to a target SOC based on the detected current, the current SOC, the SOC list of interest and the current list of interest.

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 method for providing a frequency of an electrical quantity in an electrical power system comprises obtaining, with respect to a first time, a first discrete Fourier transform (DFT) phasor of an electrical quantity in the electrical power system, estimating a second DFT phasor at a time interval before the first time, where the time interval depends on an approximated frequency, and determining the frequency at the first time based on the first and the second DFT phasor.

Abstract: A method of transmitting power by a wireless power transmitter, the method including receiving a plurality of packets including a foreign object detection (FOD) status packet from a wireless power receiver; determining whether a foreign object is present in a charging area of the wireless power transmitter on the basis of the FOD status packet; and transmitting, to the wireless power receiver, a response signal indicating whether the foreign object is present in the charging area of the wireless power transmitter on the basis of a result of the determination, wherein the response signal is determined using a measured peak frequency of a power signal transmitted by the wireless power transmitter and a reference peak frequency included in the FOD status packet received from the wireless power receiver, wherein the plurality of packets further include at least one of a signal strength packet, an end power transfer packet, a power control hold-off packet, a control error packet, a renegotiation packet, an eight-b

Abstract: In one aspect, manufacturing a magnetic-field angle sensor includes heating, to a first temperature, a substrate, which includes heating a first magnetoresistance (MR) element including a first type of antiferromagnetic material having a first Néel temperature and a first magnetization direction and heating a second MR element including a second type of antiferromagnetic material having a second Néel temperature and a second magnetization direction. The manufacturing also includes, after heating the substrate to the first temperature, applying a first magnetic field to the substrate in an x-direction to enable a first magnetization direction and a second magnetization direction to be in the x-direction, enabling a temperature of the substrate to be a second temperature and applying a second magnetic field to the substrate in a y-direction to enable the second magnetization direction to be in the y-direction while the first magnetization direction remains in the x-direction.

Abstract: Disclosed is an operation method of a neural network element using a Hall voltage. The neural network element has a hole pattern portion, and the hole pattern portion has a cross shape. When a pulse current is applied, horizontal magnetic anisotropy is formed in a ferromagnetic layer by means of spin-orbit torque, and when an external magnetic field in a direction perpendicular to the pulse current is applied, the inversion of magnetization occurs by means of additional torque. The movement of a magnetic domain wall is performed by the inversion of magnetization, spin electrons applied thereby are scattered, and a Hall voltage is generated according to the anomalous Hall effect. The generated Hall voltage increases according to the number of applications of the pulse current or pulse voltage.

Abstract: In an embodiment, a method for performing scan includes: entering scan mode; receiving a test pattern; applying the test pattern through a first scan chain by asserting and deasserting a scan enable signal to respectively perform shift and capture operations to the first scan chain; while applying the test pattern through the first scan chain, controlling a further scan flip-flop with the first scan chain without transitioning a further scan enable input of the further scan flip-flop; and evaluating an output of the first scan chain to detect faults.

Abstract: Methods and systems are disclosed for forming an image of a subterranean region of interest. The method includes receiving an observed seismic dataset and a seismic velocity model for the subterranean region of interest, and generating a simulated seismic dataset based on the seismic velocity model and the geometry of the observed seismic dataset. The method further includes determining a transformed observed seismic dataset by applying a nonlinear amplitude transform to the observed seismic dataset and determining a transformed simulated seismic dataset by applying the same transform to the simulated seismic dataset. The method still further includes forming an objective function based on the transformed observed seismic dataset and the transformed simulated seismic dataset, and determining an updated seismic velocity model based upon finding an extremum of the objective function.

Abstract: The present invention relates to an electricity meter assembly including a sensor module to connect to an electrical system, a meter, and a removable expansion module. The sensor module receives voltage and current signals, generating corresponding measurement signals. The meter's measurement module processes these signals, generating energy consumption data and determining short and open circuit conditions. The removable expansion module, guided by the meter, produces a detection current of a specific frequency, distinct from the electrical system's signals. Also disclosed is a specific configuration of the removable expansion module, designed to attach to a power meter, with components for control, generation, and transmission of specific AC signals.

Abstract: The present disclosure relates to an information processing device and an information processing method capable of reducing cost and replacing a deteriorated emergency reporting device at an appropriate timing while maintaining reliability. A time from start of charging to full charging of a supercapacitor serving as a power source of the emergency reporting device of a vehicle is measured as state information indicating a degree of deterioration of the supercapacitor, an evaluation value is calculated on the basis of the state information, and necessity of replacement of the emergency reporting device according to the deterioration of the supercapacitor is determined from comparison between the evaluation value and a threshold value. The present disclosure can be applied to a system that uses a supercapacitor as a power source and determines necessity of replacement of an emergency reporting device mounted on a vehicle.

Abstract: A cell sampling circuit includes a plurality of target units sequentially connected in a series connection in a daisy-chain communication manner and one or more transformer units each connected between two successive target units of the plurality of target units. Each of the target units is configured to acquire an impedance of at least one transformer unit connected to the target unit, and judge, based on the acquired impedance, whether to perform circuit abnormality early warning.

Abstract: Embodiments present a ground sensing plug for determining the amount of electrostatic discharge using a neural network. The ground sensing plug may include a first plug terminal configured to receive power from a power outlet connected thereto, a second plug terminal configured to have two recesses exposed to an outside to perform a function of an earth terminal, a controller including at least one processor, a memory, a communication unit, and circuitry electrically connected to the first plug terminal and the second plug terminal, and a display including a display panel and a plurality of light emitting diodes electrically connected to the circuitry, the plurality of light emitting diodes including a first light emitting diode, a second light emitting diode, and a plurality of third light emitting diodes, and emit green light based on a grounded state being detected, and a housing arranged to enclose the controller.

Abstract: Systems and methods for testing platforms using additive manufacturing techniques. A testing platform may include an electrical device configured to maintain an electrical connection with one or more additional electrical devices. A testing platform may include one or more connection pads configured to establish a secondary electrical connection between the electrical device and an external testing system. A testing platform may include a testing pattern usable by the external testing system, the testing pattern comprising: one or more printed traces, the one or more printed traces formed from a material deposited via an additive manufacturing technique, wherein the one or more printed traces are located between the electrical device and the one or more additional electrical devices.

Abstract: In various embodiments, a process for performing metering component testing includes obtaining a configuration associated with at least one metering component installed at a site to be metered and performing a metering component test. The metering component test includes at least one of: detecting phase assignment of the at least one metering component based at least on the configuration, and detecting polarity of the at least one metering component based at least on the configuration. The process includes outputting information associated with the metering component test.