The application of electromagnetic induction principle in vacuum pressure switches

The vacuum pressure switch itself does not directly operate based on the principle of electromagnetic induction. However, when some vacuum pressure switches are used in conjunction with electromagnetic components (such as vacuum solenoid valves), the application of the principle of electromagnetic induction is involved. The following is an introduction for you:

The basic working principle of vacuum pressure switches

Vacuum pressure switches are mainly used to monitor pressure changes in vacuum systems and control or trigger related equipment or systems based on preset pressure thresholds. It is usually composed of sensing elements (such as diaphragms or springs), electrical contacts, regulating devices and a housing, etc. When the pressure in the vacuum system reaches or exceeds the set pressure threshold, the sensing element will be subjected to the pressure, causing corresponding displacement or deformation, which in turn triggers the closing or opening action of the electrical contacts, thereby controlling the on/off state of the related equipment.

The Application of Electromagnetic Induction Principle in Vacuum Solenoid Valves

Working process: The vacuum solenoid valve is suitable for vacuum equipment pipelines and can be used as a two-position on-off switch. Its working principle is based on the electromagnetic induction principle. When the electromagnet is powered on, a magnetic field is generated. This magnetic field will attract the valve core (or called the closing member) to move, opening the gas passage between it and the valve seat, thereby allowing gas to flow. When the electromagnet is de-energized, the magnetic field disappears, and the valve core returns to its original position under the action of the spring force, closing the gas channel and preventing the gas from flowing. Specifically, when powered on, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, and the valve opens. When the power is cut off, the electromagnetic force disappears and the spring force presses the closing member against the valve seat, closing the valve.

Pressure range: Its pressure range is usually from -0.1 to 0MPa, and it can achieve on-off control of pipelines in a vacuum environment.

The cooperative application of vacuum pressure switches and vacuum solenoid valves

In some vacuum systems, vacuum pressure switches are used in conjunction with vacuum solenoid valves. The vacuum pressure switch monitors the pressure of the vacuum system in real time. When the pressure reaches or exceeds the set value, it sends out an electrical signal. This electrical signal can control the on and off of the vacuum solenoid valve, thereby achieving the control of gas flow in the vacuum system and ensuring that the system operates within an appropriate pressure range.