Industrial production line of the diffuse reflection type photoelectric sensor ( Switch) Introduction to the

Diffuse reflection type photoelectric sensor is often called diffuse reflection type photoelectric switch, its working principle is: the transmitter and the receiver, through tested object itself reflected light judgment exists or not. Diffuse reflection type photoelectric sensor set transmitter and receiver in a body, the object in the front, the transmitter light will not be received by receiver, switch action, as shown in figure 1 ( 一) As shown in figure. Current are objects, the receiver can receive part of the light that is reflected to the object, through the detection circuit produce switch signals and output switch action, as shown in figure 1 ( b） As shown in figure. The effective distance of diffuse reflection type photoelectric sensor is determined by the target reflection ability, which is determined by the target surface properties and color.