Inductive proximity switch from the structure can be divided into several categories

Inductive proximity switches can be divided into many types according to the type of structure. The more common ones are self-controlled switches, which amplify the circuit and signal and then drive the circuit and power supply. Because this inductive switch connects the relay and each This kind of integrated design of processing circuit makes it more efficient when assembling and avoids signal delay. So what are the structural categories of capacitive and inductive proximity switches?

1. Built-in amplifier type

This inductive proximity switch is to assemble the light-emitting photosensitive element and the amplifying circuit, the signal processing circuit and the switch drive circuit in a shell, and the ON-OFF switch output can be obtained when the DC power supply is connected. It does not require a dedicated amplifier and has a strong anti-noise ability. With the advantages of long life and extended cable, this inductive proximity switch is a mainstream photoelectric switch.

2. Separate amplifier

There are few shortcomings of inductive proximity switches. This is a more early method. The light-emitting photosensitive element is installed in the probe and connected with a special amplifier (the main body of the photoelectric switch) with a shielded wire. The main reason is that the probe can be installed in a relatively small space to detect relatively small objects, but there is a problem of anti-noise ability. With the development of technology, the volume of the built-in amplifier type photoelectric switch is getting smaller and smaller, and the use of such inductive proximity switches is relatively small.

3. Optical fiber type, inductive type

The proximity switch is a product that combines the separate amplifier type and the built-in amplifier type. The optical signal is transmitted through optical fiber. The main body of the photoelectric switch is covered with an optical fiber cable. The other optical fiber probe can detect the object to be detected. The advantages of this inductive proximity switch are optical fiber The probe is relatively small and can detect relatively small objects. The optical fiber line transmits only optical signals, so there is no need to consider the anti-noise ability of the amplifier separation type. The inductive proximity switch has high signal sensitivity, which effectively avoids the interruption problem in the working process of various signals and greatly improves the performance. The later tracking data statistics show that this switch effectively solves various deviation problems and is active. The disadvantages of traditional inductive switches are changed, and the effect of later use is also better than traditional switch equipment.