Abstract: The present disclosure relates to the technical field of batteries, and provides a sampling device, a battery management system, and a vehicle. The sampling device includes multiple core function regions, an auxiliary function region, and a terminal connector. The multiple core function regions are configured to process information of a battery. The auxiliary function region has wiring arranged therein, and is configured to transmit a signal corresponding to the information. The multiple core function regions are cascaded through the wiring.

Abstract: A measurement device (10a) for performing measurements with respect to a device under test (13) is provided. Said measurement device (10a) comprises a port (11a) for receiving a signal from the device under test (13), a signal level modification unit (14) for modifying the corresponding level of the signal in order to form a modified signal, the signal level modification unit (14) being operable in at least a first operation mode and a second operation mode being different from the first operation mode, a receiving unit (15) for receiving and digitizing the modified signal in order to a form a digitized modified signal, and a processing unit (16). The signal level of the first operation mode is set, e.g. by an attenuator of the device, such the signal-to-noise-ratio is high but the receiving unit causes non-linearity effects, and the signal level of the second operation mode is set lower, e.g. by an attenuator of the device, such that the receiving unit causes essentially no non-linearity effects.

Abstract: The present disclosure relates to an apparatus and method for secondary battery life evaluation. A state of charge (SOC) and a normal deterioration area for charge/discharge current of a secondary battery are established, the secondary battery is charged within the normal deterioration area of the secondary battery, an accelerated charging current is reduced as the SOC increases, the secondary battery is discharged within the normal deterioration area of the secondary battery, and an accelerated discharging current is reduced as the SOC decreases. Steps are repeated until a state of health (SOH) of the secondary battery reaches a reference SOH. By evaluating the accelerated life of the secondary battery within a normal deterioration range, the second battery life evaluation is highly reliable.

Abstract: After start of an electric drive system, a controller reduces power output of an inverter responsive to sensed temperature of a power switch of the inverter, sensed current of a power electronics module, sensed DC-link voltage, and thermal impedance parameters of a DC-link capacitor being indicative of an estimated temperature of the DC-link capacitor that is greater than a threshold to maintain DC-link capacitor temperature lower than the threshold.

Abstract: This application provides a test apparatus and a battery production line. The test apparatus includes a fixing mechanism and a plurality of test probe mechanisms. The test probe mechanisms are slidably connected to the fixing mechanism side by side along a first direction. In the test apparatus provided in embodiments of this application, the fixing mechanism is provided with a plurality of test probe mechanisms, and the test probe mechanisms can slide along the first direction relative to the fixing mechanism. In this way, distances between the test probe mechanisms can be adaptively adjusted according to the dimensions of to-be-tested battery cells, that is, the distances can quickly respond and adapt to changes in dimensions of incoming battery cells, so that the test efficiency can be significantly improved.

Abstract: A single or multiple self-tuning coil element for an MR imaging system is provided. The element is flexible and stretchable and may conform to various body parts and patient sizes. The element may be worn by the patient during the MR imaging session. Each coil may have one or more interdigital capacitors formed of flexible conductive traces. The capacitance of the interdigital capacitor(s) changes under stretching which provides the self-tuning. The traces may be made of liquid metal. The liquid metal may be doped with a contrast agent such that the coil is substantially invisible on an MR image. The coil(s) in a multiple coil element may be arranged in a single or a dual layer.

Abstract: To accurately detect the moving state of secondary atomic ions at the time of targeted voltage application and the moving state of secondary atomic ions due to diffusion. An ion movement measuring device includes a test specimen and a detector. The test specimen has a first electrode, a second electrode, and an electrolyte disposed between them. The first electrode and the second electrode each have a layer of an identical element, and have the identical potential in a state where no voltage is applied from outside the test specimen. At least the first electrode contains second atoms being isotopes of first atoms at an abundance ratio higher than a natural abundance ratio of the second atoms, the first atoms being present at a highest natural abundance ratio in the element. The detector detects some of ions of the first atoms and the second atoms, which are discharged from the electrolyte.

Abstract: A fence tester for testing the voltage in an electric fence comprises a handle member and a blade member pivotally coupled to the handle member between an open state extending from the handle member and a closed state partly recessed into the handle member. The handle member defines a hollow interior region, and comprises a printed circuit board having an electronic monitoring circuit therein. An antenna coupled to the electronic monitoring circuit is configured to conduct an electrical current induced therein by an electric field generated by a pulsating voltage in the electric fence when the fence tester is located adjacent the electric fence. A latching element located in the handle member operated by a manually operated operating element in the handle member latches the blade member in the open state and the closed state.

Abstract: A method, system and assembly are disclosed. A radio assembly includes at least one radio including a radio board, a plurality of filter units, a plurality of clamp elements, and an antenna unit. A subset of the plurality of filter units remain removably attached to the radio board while the remaining plurality of filter units remain removably attached to the antenna unit and plurality of clamp elements based on whether the second plurality of fastening elements are unfastened from a subset of the plurality of second filter mating elements associated with the subset of the plurality of filter units, the third plurality of fastening elements associated with the subset of the plurality of filter units are unfastened from respective first filter mating elements; and the first plurality of fastening elements associated with the remaining plurality of filter units are unfastened from respective radio mating elements.

Abstract: Proposed is a socket device used for testing integrated circuits (ICs) and, more particularly, a test socket device with a thin structure especially suitable for ICs required to process high-speed signals. The socket device includes a socket body configured to accommodate a ground probe and a signal probe, each having an upper contact pin, a lower contact pin and a coil spring, and to have noise shielding properties, and an insulating thin film member having electrical insulation properties and attached to the lower part or upper/lower parts of the socket body to elastically support the probes, and thus the socket device has a thin structure suitable for ICs required to process high-speed signals, and is easy to manufacture.

Abstract: A test and/or measurement instrument includes at least three ports and at least three measurement circuits connected to the at least three ports, respectively. The test and/or measurement instrument further includes at least one signal generator circuit and a control circuit. The control circuit is configured to set a first calibration mode and carry out a first test of the instrument by measuring the calibration signal travelling from the signal generator circuit to the respective port as well as a signal traveling from the respective port to the signal generator circuit. The control circuit is configured to set a second calibration mode and carry out a second test of the instrument by measuring the calibration signal forwarded only to the main port in the first sub-mode and the calibration signal received by the respective port from the signal generator circuit via the main port in the first sub-mode.

Abstract: A current sensing system for a magnetic resonance imaging (MRI) scanner operating at 1H and 31P resonant frequencies includes a dual-tuned RF coil with a network of up to two parallel quarter-wavelength transmission lines, each integrated with a PIN diode-coupled shunt capacitor. A multiple half-wavelength transmission line is employed with a corresponding pair of shunt capacitors and PIN diodes. A quarter-wavelength transmission line, coupled with a power amplifier through a matching network of shunt capacitors and PIN diodes, is also included. The configuration parameters are designed to tune the system to the fundamental frequency and its first odd multiple, correlating with the 1H resonant frequency, and to the 31P resonant frequency. The system accurately senses coil currents by detecting voltage variations in the matching network, thereby facilitating precise current measurements at the tuned resonant frequencies without the need for external sensors.

Abstract: A remote field eddy current, RFEC, system for detecting an azimuth location of a defect in a pipe includes a holder extending along a longitudinal axis X and shaped to flow through the pipe, a magnetic field generator located within the holder and configured to generate a first magnetic field B0, a 3-axis fluxgate magnetometer located within the holder, at a given distance away from the transmitter, along the longitudinal axis X, wherein the fluxgate magnetometer is configured to measure a second magnetic field B, which is a result of the first magnetic field B0 interacting with the defect in the pipe, and a controller located within the holder and configured to receive a value of the second magnetic field B and to determine an azimuth of the defect in the pipe by interpreting radial components of the measured field, and an extent of the defect based on the second magnetic field B.

Abstract: A device for detecting an approach of a part of a user's body or of a portable user equipment, intended to be housed on board a motor vehicle, including: a near-field communication antenna configured to transmit signals at a high frequency selected between 3 and 30 MHz, the antenna being able to detect the approach of a portable user equipment and to communicate in near-field mode with the portable user equipment. The antenna including at least one winding that extends continuously in the form of a set of comb-shaped rods such that the antenna is able to generate a variation in capacitance in response to the approach of a part of a user's body; a controller for controlling the antenna; and a measurer for measuring a variation in impedance of the antenna, generated by the variation in capacitance.

Abstract: A current sensor integrated circuit package includes a primary conductor having an input portion into which a current flows and an output portion from which the current flows, a plurality of secondary leads, and a semiconductor die disposed adjacent to a top surface of the primary conductor and positioned on an insulator portion. In some embodiments, at least one magnetic field sensing element is supported by the semiconductor die. In some embodiments, the package includes a package body with a first portion enclosing the semiconductor die and a first portion of the primary conductor and a second portion enclosing an elongated portion of the plurality of secondary leads, wherein a second portion of the primary conductor is exposed. A pad is secured to the package body and a pillar extends from the primary conductor to the pad.

Abstract: A battery test apparatus includes a lifting mechanism and a probe mechanism. The lifting mechanism is configured to drive the probe mechanism to move. The probe mechanism includes an adapting rack and a plurality of first connecting members disposed on the adapting rack. The adapting rack is detachably connected to the lifting mechanism.

Abstract: A light scattering probe includes an arm segment, a main segment located at one side of the arm segment, and a testing segment connected to another side of the arm segment. The main segment has a soldering end portion and an extending end portion respectively located at two opposite sides thereof along a predetermined direction. The testing segment has an upright shape along the predetermined direction and includes a pinpoint portion and an upright portion that connects the pinpoint portion and the arm segment. The upright portion has a roughened surface arranged on an entirety of an outer surface thereof. The roughened surface has an arithmetic average roughness (Ra) within a range from 0.1 ?m to 1 ?m. Through the roughened surface, the testing segment only forms an observation point at the pinpoint portion in an observation process of a detection apparatus.

Abstract: A pogo pin whose elastic force can be adjusted according to a contacting direction is disclosed. According to an aspect of the present invention, provided is a pogo pin with adjustable elastic force, including: a housing; plunger pins mounted on ends of the housing to directly contact a measurement object; and a spring installed inside the housing to provide elastic force so that the plunger pin contacts the measurement object, wherein a local fixing part protruding inward is formed on one side of the housing so that a first position of the spring can be pressed and fixed.

Abstract: A method and system for guiding electrode placement on the scalp. The invention includes a touch sensor arranged along a section of a flexible LED strip configured for measuring a distance between surface landmarks of the skull; and a control module with different configured settings of electrode placement schemes. By locating different cranial landmarks marked with the touch sensor and confirmed with LED lighting, it allows to guide the precise location of each electrode by illuminating the corresponding points of the LED strip.

Abstract: A probe card for a circuit probe test system and methods of fabrication thereof. The probe card includes a substrate portion, a guide plate having a plurality of openings, and a plurality of probe pins extending through the openings, including at least one first probe pin configured to carry power between the substrate portion and a device-under-test (DUT), at least one second probe pin configured to electrically couple the DUT to ground, and at least two third probe pins configured to carry loopback test signals between contact regions on the DUT. A low dielectric constant (low-k) material may be located between the third probe pins and the guide plate. The low-k material may prevent direct contact between the third probe pins and the relatively higher dielectric-constant material of the guide plate, which may improve the signal integrity (SI) of the loopback test signals.