What is a proximity switch?

What is a proximity switch?

Proximity switch again It is called a non-contact travel switch. In addition to completing travel control and limit protection, it is also a non-contact detection device. It is used to detect part size and speed, etc. It can also be used in variable frequency counters, variable frequency pulse generators, liquid Surface control and automatic connection of processing procedures, etc. Proximity switches can be divided into high-frequency oscillation type, capacitance type, inductive bridge type, permanent magnet type and Hall effect type according to their working principles.