Abstract: According to one embodiment, a magnetic sensor includes an element portion and a conductive layer. The element portion includes a first magnetic element, a second magnetic element, a first conductive member, and a second conductive member. The first magnetic element includes a first end portion and a first other end portion. The second magnetic element includes a second end portion and a second other end portion. The first conductive member includes a first portion and a first other portion. The first portion corresponds to the first end portion. The first other portion corresponds to the first other end portion. The second conductive member includes a second portion and a second other portion. The second portion corresponds to the second end portion. The second other portion corresponds to the second other end portion. The conductive layer includes a first conductive portion and a first other conductive portion.

Abstract: An energy storage apparatus includes an energy storage device and a management unit. The management unit: lowers an SOC of the energy storage device by discharge of the energy storage device; acquires current and voltage of the energy storage device while the SOC of the energy storage device is within a predetermined SOC range in a process of raising the SOC of the energy storage device by charge of the energy storage device; and calculates an internal resistance of the energy storage device based on the acquired current and voltage. The SOC range is a range in which a change in voltage of the energy storage device with respect to a change in SOC of the energy storage device is larger than a range in which a value of the SOC is larger than the SOC range.

Abstract: A period determination circuit for determining conduction period for energy-recycling circuit includes an indication circuit, coupled to an inductor of the energy-recycling circuit to receive an inductor voltage, configured to generate an indication signal according to the inductor voltage, wherein the indication signal reflects a status corresponding to a first conduction period of the energy-recycling circuit; and a control signal generator, coupled to a switch of the energy-recycling circuit, configured to generate a control signal with a second conduction period for the switch according to the indication signal. The energy-recycling circuit is coupled to a first capacitive component and a second capacitive component. The energy-recycling circuit comprises the inductor and the switch coupled between the first capacitive component and the second capacitive component. The control signal generator determines the second conduction period according to the first conduction period and the indication signal.

Abstract: Disclosed is an analytic sensitivity expression for parameters of a battery electrochemical model, based on model reduction and reformulation techniques such as the single particle assumption, Padé approximation, and Laplace transform. The analytic expressions of sensitivity are in a compact form with explicit relationship to the current input, which enables the direct optimization of the input-dependent sensitivity. The current optimization with maximum sensitivity may be performed for several critical battery electrochemical parameters, namely a solid-phase lithium diffusion coefficient, a volume fraction of the electrode active material, and a reaction rate constant. The electrochemical parameter may be reliably identified using the optimal current profile.

Abstract: A device includes a multiple-wavelength (e.g., dual wavelength) vertical-cavity surface-emitting laser (VCSEL) array including a first VCSEL set including one or more first VCSEL to emit first VCSEL radiation at a first wavelength, and a second VCSEL set including one or more second VCSEL to emit second VCSEL radiation at a second wavelength different than the first wavelength. The device includes upstream optics to upstream optics to (a) collimate the first VCSEL radiation emitted by the first VCSEL set and (b) collimate the second VCSEL radiation emitted by the second VCSEL set. The device also includes a vapor cell to receive the collimated first VCSEL radiation and the collimated second VCSEL radiation and to provide an output beam as a function of the received collimated first VCSEL radiation and collimated second VCSEL radiation, and measurement circuitry to analyze the output beam provided by the vapor cell.

Abstract: This application discloses a sensor data processing method, an electronic device, and a readable storage medium, and relates to the field of data processing technologies. The method includes: obtaining a group of raw sensor data, where the raw sensor data is sensor data output, based on an actual output data rate ODR, by a sensor; and obtaining a group of target sensor data through calculation based on the group of raw sensor data, a target ODR, and the actual ODR. The target sensor data is estimated sensor data output, based on the target ODR, by the sensor, and there is no ODR error.

Abstract: According to one embodiment, a sensor includes an element portion. The element portion includes a first magnetic member, a first opposing magnetic member, a first element, a second magnetic member, a second opposing magnetic member, a second element, a third element, and a fourth element. The first opposing magnetic member is separated from the first magnetic member in a first direction from the first magnetic member to the first opposing magnetic member. The first element includes a first magnetic layer, a first portion and a first other portion. The second opposing magnetic member is separated from the second magnetic member in the first direction. The second element includes a second magnetic layer, a second portion and a second other portion. The third element includes a third portion and a third other portion. The fourth element includes a fourth portion and a fourth other portion.

Abstract: The present disclosure relates to systems, devices, and methods for analyzing health of vehicle batteries. Vehicle batteries tend to degrade over time. The described systems, devices, and methods quantify this degradation (or quantify remaining health of the battery) by comparing average energy used to charge or discharge the battery by a charge level unit to a nominal quantity of energy used to charge or discharge a battery in optimal health by a charge level unit. Charge data for previous charge events of the vehicle battery can be used in the calculation, and can be filtered by identifying qualified charge events based on at least one of a number of metrics. Usage data for previous usage events of the vehicle battery can be used in the calculation, and can be filtered by identifying qualified usage events or subgroups of usage event based on at least one of a number of metrics.

Abstract: An integrated circuit (IC) package comprises a semiconductor die having a first surface with a Hall-effect sensor circuit and a second surface. A plurality of through substrate vias (TSV) each having a metal layer extend from the first surface of the semiconductor die to the second surface. The IC package includes a portion of a leadframe having a first set of leads and a second set of leads. The first set of leads provide a field generating current path for directing a magnetic field toward the Hall-effect sensor circuit. The second set of leads are attached to bond pads on the semiconductor die. A first side of an insulator is attached to the leadframe using a die attach material, and a second side of the insulator is attached to the first side of the semiconductor die using a bonding material.

Abstract: Managing a battery including measuring, in response to a first charging current and over a first time period, a first amperage and a first voltage of the cell at predetermined intervals; measuring, in response to a second charging current and over a second time period, a second amperage and a second voltage of the cell at the predetermined intervals; determining that the first amperage of the cell was maintained greater than a first threshold amount of time within the first time period, and in response, qualifying the first amperage and the first voltage as stable; determining that the second amperage of the cell was maintained greater than a second threshold amount of time within the second time period, and in response, qualifying the second amperage and the second voltage as stable; and in response to the qualifying, calculating a DCIR of the cell based on the voltages and the amperage.

Abstract: A method of estimating a magnetic property of a downhole component includes measuring a magnetic field strength of the downhole component at a plurality of axial locations along the downhole component to generate a plurality of magnetic field strength measurements, each magnetic field strength measurement taken in a near field region of the downhole component, and analyzing the magnetic field measurements to estimate a magnetic signature of the downhole component. The method also includes estimating an expected maximum pole strength of the downhole component based on the magnetic signature, and configuring the downhole component in a borehole string based on the expected maximum pole strength.

Abstract: A battery diagnosing apparatus includes a voltage measuring unit configured to measure a voltage of each of a plurality of battery cells included in a battery module at every voltage measurement cycled and a control unit configured to obtain a voltage value for the plurality of battery cells from the voltage measuring unit at every voltage measurement cycle, calculate a voltage change amount between the plurality of obtained voltage values for the plurality of battery cells, calculate a voltage change rate between the plurality of calculated voltage change amounts at every diagnosis cycle different from the voltage measurement cycle, and diagnose the battery module based on one or more voltage change rates calculated up to a current diagnosis cycle and a preset criterion change rate.

Abstract: Disclosed herein are batteries, battery packs, systems, and methods for calculating and/or determining, and then compensating for, the voltage loss due to interconnect resistance (IR) between cells of a battery pack. A program may calculate and/or determine the cell IR between each of the cells in a battery pack, which is referred to herein as the “calibration value,” and may be determined during the initial battery pack design phase. A program may then multiply the cell IR or “calibration value” by the measured pack current to compensate for the measured cell voltage. The cell IR or “calibration value” may be used during manufacture of the battery pack to compensate for the interconnect resistance (IR) between cells. This compensation for voltage loss due to IR between cells will increase accuracy of the BMS and improve overall battery pack performance, without increasing material costs or size of the battery pack.

Abstract: Systems and methods for detecting a plunger movement condition with respect to a solenoid coil are described. A method may include generating a first derivative signal waveform of a current flowing in the solenoid coil, identifying whether there is at least one zero crossing point in the first derivative signal waveform, and detecting the plunger movement condition according to an identification result indicating whether there is at least one zero crossing point in the first derivative signal waveform.

Abstract: A method for calculating state of health of battery, performed by a processing control circuit, includes: charging a battery under test to an upper voltage with a first constant current through a charging circuit and an electrical measuring circuit, discharging the battery under test to a lower voltage with a second constant current through the charging circuit and the electrical measuring circuit, obtaining an accumulated discharge capacity from the upper voltage to the lower voltage through the electrical measuring circuit, and calculating a state of health of the battery under test at least according to the accumulated discharge capacity and a design capacity.

Abstract: An estimation system includes a power storage device and one or more processors. The one or more processors are configured to execute a charge process of controlling a charge device so as to charge the power storage device, and an estimation process of estimating a full charge capacity of the power storage device. The one or more processors are configured to execute the charge process with an upper limit state of charge of the power storage device set to a value that is more than a first upper limit state of charge when a predetermined condition is met, the first upper limit state of charge being the upper limit state of charge at the time when the predetermined condition is not met.

Abstract: The invention relates to a sensor assembly (10) for detecting rotation of a shaft about an axis of rotation (12), said sensor assembly having a housing (24) in which at least one magnetic field sensor (14) is arranged. The at least one magnetic field sensor (14) is designed to acquire a variation in a magnetic field generated by a magnet device (16) in the sensor assembly (10), which variation is associated with the rotation of the shaft about the axis of rotation (12). A shield device (30) arranged on the housing (24) is provided to shield the at least one magnetic field sensor (14) from the surroundings (28) of the sensor assembly (10). The shield device (30) can be removed from the housing (24), with the shield device (30) being retained on the housing (24) by means of a latching connection.

Abstract: An apparatus for diagnosing a battery located in a battery system including one or more batteries, the apparatus may include: at least one processor; and a memory configured to store instructions executed by the at least one processor to collect state of charge information of the battery when the battery system is in a standby mode; calculate an amount of power change of the battery during a maintaining period of the standby mode based on the collected state of charge information and pre-stored initial state of charge information; and compare the calculated amount of power change with an expected amount of discharge power of the battery and to determine whether a leakage current occurs in the battery system based on the comparison.

Abstract: A method for detecting internal short circuit of a battery, includes: discharging a battery with a first current I1 at a moment t1; calculating a first discharge voltage drop ?V1 of the battery at a moment t1+dt; discharging the battery with a second current I2 at a moment t2, where I1?I2; calculating a second discharge voltage drop ?V2 of the battery at a moment t2+dt; and determining, based on the first current I1, the first discharge voltage drop ?V1, the second current I2, and the second discharge voltage drop ?V2, whether the battery has an internal short circuit. In this application, whether the battery has an internal short circuit can be accurately determined, thereby ensuring safety of an electronic apparatus and a user.

Abstract: Discussed is a battery pack diagnosis method including a battery pack manufacturing process, a battery cell charging and discharging process, a battery pack thermal image photographing process, a thermal image reading process, a battery pack magnetic field image photographing process, a magnetic field image reading process, and a wire bonding state defect determining process of finally determining a bonding state of a battery cell and a wire by combining thermal image reading result information obtained in the thermal image reading process and magnetic field image reading result information obtained in the magnetic field image reading process in order to exactly diagnose the bonding state of the battery cell and the wire connecting the battery cell in the battery pack.