A：Photoelectric switches have been widely used in various fields such as position detection, liquid level control, product counting, width discrimination, speed detection, length cutting, hole recognition, signal delay, automatic door sensing, color mark detection, punch presses, shearing machines, and safety protection. Additionally, due to the infrared's concealment, photoelectric switches can a...

A：According to the detection method, photoelectric switches can be classified into diffuse-reflective, through-beam, retro-reflective, slot-type, and fiber-optic photoelectric switches.The through-beam type consists of a transmitter and a receiver, which are structurally separate. In the event of interruption of the light beam, a switch signal change is generated. A typical arrangement is that thr...

A：A photoelectric switch sensor is a type of sensor that utilizes the photoelectric effect for detection. Its working principle involves emitting a beam of light and detecting if the beam is obstructed to determine the presence and status of an object. The specific process is as follows:1. Emitting the beam: The sensor emits a beam of light.2. Receiving the signal: When an object enters the path o...