A photoelectric sensor consists of a light beam transmitter (LED) and a light-sensitive receiver (phototransistor). When an electric current flows through the LED, it emits either visible or invisible light, depending on the transmission wavelength.
Detection happens when an object interrupts the light beam, altering the light intensity at the receiver. Once the light intensity drops below a certain threshold, the sensor output changes state, signaling detection.
Models vary by application needs, with transmission beams that are typically non-visible infrared (ideal for general detection), ultraviolet (for detecting luminescent materials), visible red or green (for reading color marks), or laser red (for long-range detection and precise focal control).
LEDs offer the benefit of rapid response time. To ensure stable performance despite ambient light, the LED current is modulated to emit pulsed light, which the phototransistor detects and uses for load control.
Product Series
The Photoelectric Sensors Series from Telemecanique Sensors offers exceptional accuracy and versatility for a wide range of industrial applications. Whether it’s object detection, distance measurement, or material handling, these sensors use advanced optical technology to ensure fast, reliable, and precise performance. Designed for use in harsh environments, these sensors are built to withstand extreme conditions, providing consistent results in industries such as manufacturing, logistics, and robotics.
The Forks and Frames Series from Telemecanique Sensors features a unique fork or frame-shaped design, making it easy to install and use in high-speed production lines or tight spaces. These sensors are ideal for detecting objects passing through a predefined area, providing fast and accurate responses. With rugged construction, they are built to endure harsh industrial environments, helping to increase production efficiency and ensuring precise object detection every time.
The Application Series from Telemecanique Sensors is designed for specialized industrial applications that require high-precision detection and adaptability. Whether dealing with high temperatures, humidity, or electromagnetic interference, these sensors provide outstanding performance and reliability. Ideal for packaging, quality control, and advanced automation tasks, the Application Series ensures your systems are running efficiently, improving workflow accuracy, and boosting productivity across a wide variety of industries.