Photoelectric Sensors

A photoelectric sensor is a device that uses a light transmitter and a photoelectric receiver to determine the distance, presence, or presence of an object. When the emitted light is interrupted or reflected by the sensing object, it changes the amount of light reaching the receiver. The receiver detects this change and converts it to an electrical output. The light source for most photoelectric sensors is infrared or visible light (usually red, or green/blue for color recognition). Photoelectric sensors are widely used in industrial manufacturing.