A probe includes: a probe base body having a first end as a portion that contacts a test object in an inspection and a second end that contacts a contact point member; a covering member that covers the probe base body between the first end and the second end; and an enlarged diameter portion 6 provided at an exposed portion on the second end side of the probe base body. The probe is attached in a bent-deformed state by pressing a terminal portion on the first end side of the covering member against a base portion of the contact inspection device. The second end of the probe base body is pressed against a contact point of the contact point member by opposing force due to the pressing.

A probe pin includes an elastic portion, a first contact portion having a pair of leg portions that extends from a first end of the elastic portion along a longitudinal direction and is bendable in a direction away from each other, and that has a pair of contact portions each of which is disposed at each tip of the pair of leg portion and is urged by the elastic portion in a direction along the longitudinal direction through the pair of leg portions to be able to be brought into contact with a projecting contact of an inspection object, and a second contact portion that is disposed at a second end of the elastic portion and is electrically connected to the first contact portion. Between the pair of leg portions, a gap into which the projecting contact of the inspection object can be inserted is provided, and in a state where the projecting contact is inserted into the gap, the pair of contact portions and the projecting contact can be brought into contact with each other.

A method of electronically marking a plurality of branch circuits of an electrical installation of an engineering structure, the plurality of branch circuits comprising a first branch circuit and a second branch circuit, includes: providing one or more signalling devices, wherein at least one of the signalling devices is communicatively coupled to the first branch circuit, and wherein at least one of the signalling devices is communicatively coupled to the second branch circuit; providing, by the at least one signalling device communicatively coupled to the first branch circuit, a first identification signal on the first branch circuit; and providing, by the at least one signalling device communicatively coupled to the second branch circuit, a second identification signal on the second branch circuit, wherein the second identification signal is different from the first identification signal.

A method of electronically marking a plurality of branch circuits of an electrical installation of an engineering structure, the plurality of branch circuits comprising a first branch circuit and a second branch circuit, includes: providing one or more signalling devices, wherein at least one of the signalling devices is communicatively coupled to the first branch circuit, and wherein at least one of the signalling devices is communicatively coupled to the second branch circuit; providing, by the at least one signalling device communicatively coupled to the first branch circuit, a first identification signal on the first branch circuit; and providing, by the at least one signalling device communicatively coupled to the second branch circuit, a second identification signal on the second branch circuit, wherein the second identification signal is different from the first identification signal.

An inspection apparatus for a substrate, comprising: a placing member on which a substrate is placed; a holder configured to hold a probe card having probes; positioning members to be in contact with an upper surface of the placing member to define a height of the placing member with respect to the probes; an adjustment mechanism configured to adjust heights of the positioning members; a detection device; and a control. The controller is configured to execute: positioning the positioning member to a reference height at which an overdrive amount becomes zero, based on the detection results of the probes, the placing member, and the positioning member; and acquiring a height of the positioning member at which a desired overdrive amount is obtained, and raising the placing member while adjusting a driving amount of the adjustment mechanism until the placing member reaches the height.

The disclosure discloses a method and device for monitoring partial discharge. The monitoring method including: step a, connecting a monitoring circuit in parallel to both ends of a tested product, disposing a ground wire between the monitoring circuit and ground, disposing a first sensor in the monitoring circuit, and disposing a ground wire sensor on the ground wire; step b, applying an excitation signal to the tested product, acquiring a first signal through the first sensor and acquiring a ground wire signal through the ground wire sensor within a monitoring cycle; and step c, determining whether the tested product has partial discharge through the first signal and the ground wire signal. The disclosure can avoid the partial discharge monitoring device from wrongly determining an interference signal to be a partial discharge signal, enhance anti-interference capability of the partial discharge monitoring device, and improve monitoring accuracy.

The disclosure discloses a method and device for monitoring partial discharge. The monitoring method including: step a, connecting a monitoring circuit in parallel to both ends of a tested product, disposing a ground wire between the monitoring circuit and ground, disposing a first sensor in the monitoring circuit, and disposing a ground wire sensor on the ground wire; step b, applying an excitation signal to the tested product, acquiring a first signal through the first sensor and acquiring a ground wire signal through the ground wire sensor within a monitoring cycle; and step c, determining whether the tested product has partial discharge through the first signal and the ground wire signal. The disclosure can avoid the partial discharge monitoring device from wrongly determining an interference signal to be a partial discharge signal, enhance anti-interference capability of the partial discharge monitoring device, and improve monitoring accuracy.

A method for evaluating the insulating performance of a separator using an insulating performance evaluation system according to an exemplary embodiment of the present disclosure includes: preparing a measurement subject wherein a metal contact layer is interposed between two sheets of separator so as to form a plurality of local contacts with the surface of the separator; sandwiching the measurement subject between an upper jig and a lower jig; applying a voltage the magnitude of which varies with time between the upper jig and the lower jig using a voltage application unit; receiving a current measurement value flowing between the upper jig and the lower jig as an input from a current measurement unit; and determining the voltage value at which the current measurement value is equal to or greater than a preset critical value as a dielectric breakdown voltage, by a control unit.

Apparatuses and methods are disclosed for handling integrated circuits in automated testing. The handler apparatus includes an upper assembly that is selectively translatable above a testing surface and a lower bracket extending from and positioned below the upper assembly. The lower bracket forms a first opening, is selectively moveable upward and downward, and includes a rotatable finger extending downward to pick up and place an integrated circuit in a socket. The handier may further include an image sensor to detect potential error conditions, and a tool extending from the lower bracket to open and close a lid on the socket. The methods include sensing an image of an integrated circuit during certain phases of testing, analyzing the image to determine if the integrated circuit is positioned correctly, and correcting any detected error conditions before continuing with the automated testing.

A fault detection and positioning system for a cell panel in a large-scale photovoltaic array, includes a first photovoltaic panel fault detection and positioning system, a second photovoltaic panel fault detection and positioning system, and/or a third photovoltaic panel fault detection and positioning system. The detection and positioning system can detect faults of panels in the photovoltaic array in real time, especially accurately positioning a photovoltaic panel in which a fault occurs; the number of sensors can be minimized, so that the detection costs can be reduced; and the system can be easily implemented and mounted in existing power stations.