Abstract: One or more examples relate to an apparatus to amplify differential voltage signal components of voltage across a resistor. Such an apparatus may include a resistor; a differential amplification circuit operatively coupled with the resistor to amplify a differential voltage signal component of a voltage across the resistor; and an operative coupling between the resistor and the differential amplification circuit to pass the differential voltage signal component and isolate a common mode voltage signal component of the voltage across the resistor.

Abstract: A current sensor includes a busbar, a first magnetic sensor, and a first coil, and where a longitudinal direction of the busbar is defined as an X axis direction, and a width direction of the busbar is defined as a Y axis direction, the first magnetic sensor measures a magnetic field in the Y axis direction, the first coil is arranged such that an axis of the first coil is parallel to the Y axis direction, and the first magnetic sensor is arranged inside the first coil.

Abstract: In an aspect, an electronic device can include a first sensor adjacent to a first portion of a peripheral edge of a die, a first access transistor electrically coupled to the first sensor, a second sensor adjacent to a second portion of the peripheral edge, and a second access transistor electrically coupled to the second sensor. In another aspect, an electronic device can include an edge guard ring and a sensor electrically insulated from the edge guard ring. The edge guard ring can include a interconnect. At least a portion of the first sensor overlaps or underlaps a portion of the first interconnect. Testing can be performed by comparing the electrical parameters of two or more sensors or by comparing the electrical parameters of one sensor versus a reference value. Testing can be performed at nearly any time, including after the electronic device is installed in a system.

Abstract: Discussed is a welding inspection apparatus for battery modules capable of applying an alternating current to a bank constituted by two or more battery cells connected in parallel and a battery module constituted by one or more banks connected in series to calculate an impedance and a resistance value of each of the one or more banks, and a method of inspecting welding of the battery module using the welding inspection apparatus.

Abstract: Systems, circuits, and methods provide core-based closed-loop current sensors utilizing a coil connected to an IC having a magnetic field sensor configured to measure current in one or more conductors such as busbars. A closed-loop current sensor includes a magnetic core having first and second ends separated by a gap and an aperture receiving the one or more conductors; a magnetic field sensor disposed on a substrate and integrated in an IC is disposed in the gap, where the magnetic field sensor is configured to receive magnetic flux from the gap, where the IC is configured to measure AC current in the one or more conductors; and a coil integrated with the substrate and coupled to the IC, wherein the coil is configured to provide negative magnetic feedback for closed-loop compensation.

Abstract: A system for introduction of digital integrity self-sensing of corrosion-protective coatings to remotely detect, locate and monitor coating barrier failure in real time to identify corrosion prone hotspots before corrosion damage of protected substrate materials occurs.

Abstract: The present invention provides a rig (100a) for comparing wire harnesses (300a or 300b). The rig (100a) includes a workbench (110), two or more terminals (120a, 120b), an electrical supply (140), a supply device (145), one or more control units (150a, 150b) and a workstation (160). The control unit (150a) is connected to the respective terminal (120a) for sensinge electrical parameters at the respective terminal (120a). The workstation (160) is connected to the control units (150a, 150b) through a wireless connection. The workstation (160) is having a memory unit (168) and a processor (166). The processor (166) compares the sensed signals from the control units (150a, 150b) with the prestored details of the first wire harness (300a). The processor (166) provides comparison details of a first wire harness (300a) and a second wire wire harness (300b) through a display (170). The rig (100a) is easy to operate.

Abstract: A circuit includes an anisotropic magnetoresistance (AMR) sensor; an operational amplifier; and a calibration circuit. The AMR sensor has a first terminal, a second terminal, a third terminal, and a fourth terminal. The operational amplifier has a first terminal, a second terminal, a third terminal, and a fourth terminal. The first terminal of the operational amplifier is coupled to the second terminal of the AMR sensor. The second terminal of the operational amplifier is coupled to the third terminal of the AMR sensor. The calibration circuit is coupled to the first terminal of the operational amplifier. The calibration circuit is configured to provide an adjustable offset trim voltage at the first terminal of the operational amplifier to cancel out an offset voltage generated by the AMR sensor.

Abstract: A magnetic sensor includes at least one MR element and a coil. The coil includes at least one conductor portion. The at least one conductor portion is each located at a position such that a partial magnetic field generated by the conductor portion is applied to one of the at least one MR element, the one corresponding to the conductor portion, and extends along an imaginary curve curving to protrude in a direction away from the corresponding MR element.

Abstract: Discussed is a pin push inspection connector that can include a first connector assembly having a front portion adapted to connect to a connector under test in a first direction and to be fixedly coupled to the connector under test; and a second connector assembly having a front portion connected to a rear portion of the first connector assembly in the first direction and provided so that a connection interval with respect to the first connector assembly is variably adjusted in the first direction or a second direction that is opposite to the first direction. The second connector assembly can include at least one inspection pin provided therein to be connected to at least one terminal pin provided in the connector under test.

Abstract: A system and method for measuring mutual inductance between adjacent first communication transmission line and second communication transmission line is disclosed. The system includes a mutual inductance measurement circuit that includes a coupling generator which biases the first communication transmission line with a current ramp signal; a sample and hold circuit which captures an induced voltage on the second communication transmission line using a switched capacitor storage element; a switched capacitor integrator configured to integrate the induced voltage onto an output voltage node; and a comparator configured to switch states once the switched capacitor integration has surpassed a reference trippoint.

Abstract: The present disclosure relates to a battery for testing a short circuit, a manufacturing method therefor, and a battery safety analysis method, which manufacture a battery for testing a short circuit, capable of easily switching to an internal short circuit state, and which analyze battery safety by using the battery.

Abstract: A current sampling circuit is provided. The current sampling circuit includes a sampling unit provided with multiple sampling input terminals, a sampling reference terminal and at least one sampling output terminal. With a symmetric winding arrangement and a phase-offset configuration of control signals of the device, coupling voltage components sent to the current sampling circuit is self-counteracted. An amplification unit is further included in the current sampling circuit. Output signals of the current sampling circuit are calibrated by a calibration unit and compensated for temperature influences by a temperature compensation unit.

Abstract: Examples of fault location in a power transmission line connecting a first and a second terminal is described. In an example, arrival times of a first peak, a second peak, and a third peak of a travelling wave detected from measurements carried out at the first and second terminals is detected. A rise time associated with the first peak of the travelling wave is calculated. One of a first half and a second half of the power transmission line is identified, as having a fault, based on a comparison of the rise time. One of a first segment, a second segment, a third segment, and a fourth segment of the power transmission line is identified as having the fault. Length of the power transmission line is estimated. The fault location is estimated based on identification of one of the first, second, third, and fourth segments as having the fault.

Abstract: The invention relates to current sensor diagnostics in an electric drive system. According to the invention, a net current is formed from the sensor values provided by the current sensors. If this net current deviates significantly from zero, a complex current sum can be calculated using the rotor angle of the electric machine. This complex current sum is based on the current RMS current in the electric drive system in order to indicate deviations in the current gain factors of the current sensors used.

Abstract: A testing system to provide feedback on the construction of a length of cable includes a testing apparatus having a cable coupler with ports to accept a connector on the end of the length of cable and a tester unit to send a test signal through the ports and length of cable and generate data based on the test signal; a computing device in communication with the testing apparatus to receive the data, process the data to produce a feedback score, associate the score with a discrete instance, store the score; and a display device configured to receive and display information related to the score. The testing system further includes a timer unit to track a time period and provide the time period to the computing device to be stored, used to further rank scores, and displayed by the display device as part of the information related to the score.

Abstract: Systems, circuits, and methods provide for detection of open-circuit states in an external conductor using inductive coupling. An on-chip coil is used to generate a reference magnetic field. An in-package conductor loop is connected to the external conductor. When the external conductor is continuous, the reference magnetic field generates an induced current in the in-package conductor whereas no induced current is generated when the external conductor is broken. The presence of an induced current produces an induced magnetic field, tending to cancel the reference magnetic field. The cancellation or attenuation of the reference magnetic field can be detected by an included magnetic field sensor and a comparator. Examples can include use of a closed loop acting as a feedback loop. The feedback loop can adjust the strength of a feedback magnetic field directed at the magnetic field sensor and used to compensate for nonlinearities of the magnetic field sensor.

Abstract: A real-time monitoring device for an amount of surface salt deposition comprises a host and a monitoring probe. The host generates a fixed frequency AC excitation signal and transmits it to the interdigital electrode inside the monitoring probe. And then the host analyzes a feedback signal to obtain an information of impedance value. The amount of salt deposition on the interdigital electrode surface is determined by a predetermined relationship curve between the amount of salt deposition and the impedance value, and the actual amount of salt deposition in the environment can be obtained. The monitoring device can change the relative humidity of the environment around the interdigital electrode by adjusting the temperature, so that the salt deposited on the surface of the interdigital electrode absorbs moisture and forms a liquid film, achieving real-time monitoring of the amount of salt deposition on the surface of the interdigital electrode.

Abstract: A device may include a fluid region. A device may also include a magnetochemical sensor for detecting magnetic particles in the fluid region, wherein the magnetochemical sensor comprises: a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer situated between and coupled to the first ferromagnetic layer and the second ferromagnetic layer. A device may further include a current-carrying structure for drawing the magnetic particles in the fluid region toward the magnetochemical sensor, wherein: the current-carrying structure consists of a single, undivided structure, and the current-carrying structure is configured to carry a current in at least one direction that is substantially parallel to an in-plane axis or a longitudinal axis of the magnetochemical sensor. The magnetochemical sensor may be one of a plurality of magnetochemical sensors in a sensor array.

Abstract: A system for measuring a conduit surrounded by an insulator provided with a first conductor, a second conductor and one or more third conductors includes a control and measuring circuit configured to determine a value which is representative of the capacitive coupling between the first conductor and the second conductor and one or more of said third conductors. At least a first switching means is configured for electrically connecting the second conductor to a third conductor of said one or more third conductors in a first state and for electrically disconnecting the second conductors from the third conductor of said one or more of third conductors in a second state. A control means is configured for controlling the control and measuring circuit and the first switching means such that the measurements are performed in the first and second state of the first switching means.