Functional Principles of Retro-Reflective Area Sensors
A very effective operating principle
Our retro-reflective area sensor operates with the same principle as the retro-reflective sensor, except it contains several transmitters and receivers in one enclosure, with a reflector positioned opposite, forming a detection area with a consistent width and height over the relevant sensing range.
When the light beams in the detection area are interrupted by an object, the switching function is triggered.
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| The RLG28 retro-reflective area sensor
operates according to the reflection principle | RLG28 retro-reflective area sensor reliably detects objects of different shapes and sizes |
Advantages:
- Reliable, consistent object detection with no incorrect switching, regardless of the shape, surface, or position of the objects
- The sensors do not need to be realigned if the object shape or position changes.
- Replaces complicated, cost-intensive installations using several sensors in series
Apart from lower prices, the benefits compared to light grids include the reflection principle.
While the retro-reflective area sensor operates with a simple reflector, light grids consisting of a transmitter and receiver must always be wired at two ends. Retro-reflective area sensors are easier to install