What are the main types of Autonics Photoelectric Sensors used in automation?
The main types of Autonics Photoelectric Sensors used in automation are through-beam, retro-reflective, and diffuse reflective sensors. Each type works on a light-based detection principle but is designed for different industrial conditions. The through-beam sensor consists of a separate emitter and receiver placed opposite each other. It detects objects when the light beam between them is interrupted. This type offers the longest sensing distance, highest accuracy, and strong resistance to environmental noise like dust or mist, making it ideal for conveyor, counting, and packaging applications. The retro-reflective sensor has both emitter and receiver built into a single housing, using a reflector to bounce light back. It detects objects when the reflected beam is blocked, making it simple to install and perfect for medium-distance detection tasks. It is commonly used in packaging, assembly, and logistics systems where quick and stable detection is required.
The third type, the diffuse reflective sensor, detects objects based on the light reflected directly from the target’s surface. It does not require a reflector, which makes installation easier in compact or complex setups. Diffuse sensors are widely used for short-distance detection of small or irregular objects. They are ideal for applications like product sorting, part positioning, or detecting labels on fast-moving production lines. These three main types of Autonics Photoelectric Sensors ensure reliable performance, fast response time, and easy integration into industrial automation systems. Choosing the right type depends on the sensing distance, surface conditions, and installation requirements. Together, they help improve process accuracy, reduce downtime, and enhance productivity in modern automation.