Optical sensors detect and control objects using optical and electronic methods, utilizing red or infrared light. These sensors consist of:
A light-sensitive component (photodetector)
A light source
An optical system
The operating principle is based on the controlled object's mechanical movement altering the light flow within the sensor's optical system. The photodetector converts the light energy into an electrical signal.
Types of Optical Sensors by Light Flow Behavior:
Light barrier sensors: Light flow is interrupted by the object's displacement.
Diffuse sensors: Light reflects off the object.
Generated light sensors: The object itself generates the light.
Optical sensors are widely used for positioning and object detection across various materials, such as paper, wood, plastic, and more. They are suitable for applications like paper handling in grinding machines and other industrial processes requiring precision and reliability.
