Different kinds of photoelectric switch sensor(1)

Photoelectric switch sensor can be divided into reflection type, diffuse reflection type and specular reflection type:

Opposite type（photoelectric switch sensor)
The opposite type photoelectric switch sensor is composed of a transmitter and a receiver, which are separated from each other in structure. When the beam is interrupted, a switch signal change will occur. The typical way is that the photoelectric switches located on the same axis can be separated from each other by up to 50 meters. features:

(1) Distinguish opaque reflective objects;

(2) The effective distance is large because the beam crosses the sensing distance only once;

(3) It is not easy to be disturbed and can be reliably and properly used in the field or dusty environment;

(4) The consumption of the device is high, and cables must be laid in both units.