Photoelectric Proximity Sensor, Background Suppression

A photoelectric proximity sensor is a device that detects the presence or absence of an object without physical contact. It works by emitting light and measuring the amount of light reflected back. When an object enters the sensor's range, it reflects some of the light back to the sensor, triggering a signal.

Background suppression is a feature often included in photoelectric proximity sensors that helps to eliminate false triggers caused by ambient light or other background sources. This is achieved by using a specific type of sensor that can differentiate between the reflected light from the target object and the background light.