A proximity sensor switch (hereinafter referred to as a proximity switch) is a device that can sense the proximity of an object and perform a corresponding switching operation in a popular manner. A proximity switch is a position switch that does not require mechanical contact with a moving part and can be operated. When the proximity surface of the switch approaches the actuation distance, the switch can be actuated without mechanical contact and applying any pressure, thereby driving the AC or DC electrical device or providing the computer device with a control command. Proximity switch is a type of switch-type sensor (that is, no non-contact switch), it has the characteristics of the trip switch, micro switch, and has the sensing performance, and reliable operation, stable performance, fast frequency response, long service life, resistance With strong interference capability, it is also waterproof, shockproof and corrosion resistant. Products are inductive, capacitive, Hall, AC, DC type.
Proximity switch, also known as non-contact proximity switch, is an ideal electronic switch sensor. When the metal detector is close to the sensing area of the switch, the switch can be contactless, no pressure, no spark, quickly send electrical instructions, accurately reflect the position and stroke of the moving mechanism, even if used for general stroke control, positioning accuracy, operation The frequency, the service life, the convenience of installation and adjustment, and the applicability to harsh environments cannot be compared with the general mechanical type of travel switch. It is widely used in machine tools, metallurgy, chemical, textile and printing industries. In the automatic control system can be used as limit, counting, positioning control and automatic protection links. The proximity switch has the advantages of long service life, reliable operation, high repetitive positioning accuracy, no mechanical wear, no spark, no noise, and strong anti-vibration capability. So far, the application of proximity switches has become increasingly widespread, and its own pace of development and innovation is extremely rapid.