A process for automated contact wetting in a sensor circuit includes generating a first current through a contact by sequencing a first circuit on, the first current exceeding a wetting threshold of the contact, and reducing current through the contact to a second current by sequencing a second circuit on, the second current being below the wetting threshold.

The present invention relates to an electric switch with rubbing contact (3) comprising on the one hand at least one fixed contact (9) and on the other hand at least one moving rubbing contact (3) that can move along a predefined trajectory and exhibiting a contact surface (10) intended to rub on said at least one fixed contact (9), characterized in that at least said contact surface (10) is treated by ion bombardment by virtue of an ion beam, and in that the fixed (9) and moving (3) contacts are bare.

The present invention relates to an electric switch with rubbing contact (3) comprising on the one hand at least one fixed contact (9) and on the other hand at least one moving rubbing contact (3) that can move along a predefined trajectory and exhibiting a contact surface (10) intended to rub on said at least one fixed contact (9), characterized in that at least said contact surface (10) is treated by ion bombardment by virtue of an ion beam, and in that the fixed (9) and moving (3) contacts are bare.

In an example, a port cleaner may include a flexible body, a guide wire, and a push plate. The guide wire may extend along a length of the flexible body. Further, the push plate may be disposed at a first end of the flexible body and movable along the guide wire to compress the flexible body.

An electronic control device includes an input terminal connected to a second terminal of a switch via an electrically conductive lead, an input circuit connected to the input terminal via a signal line, and a microcontroller to detect whether the switch is in an electrically conducting state or an electrically non-conducting state based on an output signal from the input circuit, and to perform at least one process in accordance with a detected result. The input circuit includes a first resistor connected to a supply voltage or ground and to the signal line, and a transient current circuit connected to the supply voltage or ground and to the signal line, the transient current circuit including a second resistor that allows a transient current to flow through the switch when the switch transitions from the electrically non-conducting state to the electrically conducting state.

A power accumulation system includes a power accumulation device, a relay device provided in a pair of power lines disposed between the power accumulation device and a power conversion device that exchanges power with the power accumulation device, a capacitor provided between the pair of power lines between the relay device and the power conversion device and an electronic control device that controls the relay device. The electronic control device is configured to execute a predetermined foreign matter removal process when it is not possible to bring one of a first relay and a second relay from a power blocking state to a conductive state.

This disclosure describes techniques for increasing wetting current for an electromechanical switch. In one example application, an aircraft may include one or more valves used to control the temperature of aircraft interior. The valves may include one or more valve position switches to indicate certain valve positions, e.g. fully open, fully closed, fifty percent open, and so on. In some examples, the valve position switches may receive current at electromechanical contacts of the switch that is less than the wetting current. The techniques of this disclosure provide additional wetting current at the time the switch contacts close to improve reliability of the valve position switches. In some examples, an analog to digital converter circuit may be configured to provide the additional wetting current to the switch.

This disclosure describes techniques for increasing wetting current for an electromechanical switch. In one example application, an aircraft may include one or more valves used to control the temperature of aircraft interior. The valves may include one or more valve position switches to indicate certain valve positions, e.g. fully open, fully closed, fifty percent open, and so on. In some examples, the valve position switches may receive current at electromechanical contacts of the switch that is less than the wetting current. The techniques of this disclosure provide additional wetting current at the time the switch contacts close to improve reliability of the valve position switches. In some examples, an analog to digital converter circuit may be configured to provide the additional wetting current to the switch.

A system, a method, a device, and an apparatus include a control unit configured to determine contact resistance of one or more electrical contacts of one or more circuits, and remove, via a wetting current, residue on the one or more electrical contacts.

The disclosure provides an ultra-small electromagnetic relay with high stationary contact positioning precision, comprises: a stationary spring, a bobbin and a base which are integrated by injection molding, the stationary spring comprises a stationary spring body on which stationary contacts are disposed and a leading-out terminal of the stationary spring extending from the stationary spring body to an outer part of the base; in the leading-out terminal, a first positioning part is disposed at a position corresponding to an edge of the base; in the stationary spring body, a convex extending part extending outside the base is designed as a second positioning part; in the base, a through hole formed through the base of is provided at a position corresponding to a back surface of the stationary spring body on which the stationary contact is mounted, the back surface is designed as a third positioning part during injection molding.