The present invention concerns a system for determining if a deterioration occurs in an interface of a semiconductor die of an electric power module, the electric power module further comprising a substrate and at least one electromechanical transductor, the semiconductor die and the at least one electromechanical transductor being placed on or embedded within the substrate, wherein the system comprises: means for transferring at least one electric signal to the at least one electromechanical transductor, means for measuring the impedance of the at least one electromechanical transductor, means for comparing the impedance of the at least one electromechanical transductor to a predetermined value, means for deciding that the deterioration occurs in the interface of the semiconductor die according to the comparison result.

An abnormality determination apparatus is applied to a battery pack including blocks composed of battery cells connected in series, and a connecting member that connect blocks to one another in series. In the blocks and the connecting member, a first detection circuit detects a voltage of a first series circuit including the connecting member. A closed-circuit forming unit forms a closed circuit so as to allow a current to flow to the connecting member. The closed circuit includes the connecting member, at least one of the battery cells, and a diode connected in parallel to connecting member. When a charge-discharge current is not flowing to the battery pack, a first abnormality determining unit determines whether or not an open abnormality has occurred in the connecting member, based on a detection value from the first detection circuit in a state in which the closed-circuit forming unit is forming the closed circuit.

A test station and method of testing a design under test are disclosed. One method includes applying a first test frequency signal to a reference path to determine a first known attenuation level, and applying the first test frequency signal to a design under test to determine a first tested attenuation level of the design under test at the first test frequency. The method also includes applying a second test frequency signal to the reference path to determine a second known attenuation level, and applying the second test frequency signal to the design under test to determine a second tested attenuation level of the design under test at the second test frequency. The method includes determining whether the design under test is faulty based on the first tested attenuation level and the second tested attenuation level.

A method for checking a wire connection comprises providing a first current by a first power channel and measuring a first voltage by a first measuring channel when each of a positive terminal of the first measuring channel and a positive terminal of the first power channel is connected to one of positive terminals of batteries and each of a negative terminal of the first measuring channel and a negative terminal of the second measuring channel is connected to one of negative terminals of the batteries after measuring the first voltage, providing a second current by the first power channel and measuring a second voltage by the first measuring channel, and determining whether the first measuring channel and the first power channel are connected to a same battery of the batteries.

A tightness test device includes a charging socket to supply electric energy to an energy reservoir of a vehicle, which has a test adapter for contacting of a sealed plug connector of a wiring network including the sealed plug connector, a charging socket for mounting to an at least partly electrically powered vehicle and also a cable connecting the plug connector and the charging socket, a fluid supply connected to the test adapter which is set up to provide a fluid to the test adapter, and a measuring device for detection of tightness of the charging socket and/or of the wiring network based on the provided fluid. In addition, a method is described for testing a charging socket to supply electric energy to an energy reservoir of a vehicle.

An electric contact configured to make a section between a first contact part and a second contact part extendable/contractible. A spring part has a wave-like shape by continuously forming wave-shaped parts alternately on one and the other sides of an axis L as a center for connecting the first contact part and the second contact part, and is formed into a cylindrical shape while having a projection of the wave-shaped part on one side confronting a recess between projections of the wave-shaped parts on the other side. The projection of the wave-shaped part on the one side enters into the recess between the wave-shaped parts on the other side to bring the projection on the one side into abutment on the projection adjacent to the recess upon contraction of the spring part to stop a contracting motion, and establish a conduction state between the projections abutted on each other.

Disclosed herein are a connection cable, an antenna connection diagnosis device, a vehicle including the same, and an antenna connection diagnosis method. The antenna connection diagnosis device includes a first cable having a first connector installed at one end thereof and a first connection diagnosis connector installed at the other end. A second cable has a second connector, which is capable of being coupled to the first connection diagnosis connector, formed at one end thereof. A diagnoser is configured to diagnose whether the first cable and the second cable are connected using the first connection diagnosis connector.

Systems and methods for monitoring one or more target components of an electrical supply system are disclosed. A metering system includes one or more infrared sensors positioned to detect an amount of thermal energy emitted from the one or more target components of the electrical supply system. The one or more infrared sensors transmit temperature data representative of the amount of thermal energy. The metering system also includes one or more processors and one or more non-transitory memory modules communicatively coupled to the one or more processors and the one or more infrared sensors. The one or more processors store machine-readable instructions that, when executed, cause the one or more processors to receive the temperature data generated by the one or more infrared sensors and control the one or more infrared sensors based on the temperature data.

Damage preventing identification system for electrical conductors and coupling points including at least one identification unit arranged for arrangement to a surface, end cap or cable shoe of an electrical conductor, which identification unit is provided with an encapsulation for arrangement of the identification unit to the electrical conductor, and for housing means for visual and electronic tagging, which identification unit further includes means for measuring temperature and/or current.

The present invention relates to device and method for detecting powered devices connected to a power source equipment in a Power over Ethernet system that provides multiple signal/power channels. A series of inspection signals including one discriminative signal is applied to the respective channels and response signals to the discriminative signal and other detection signals are compared in order to determine whether multiple channels are connected to one single powered device.