Background Suppression Sensors: The transmitter and receiver in a diffuse sensor is located in the same housing. The transmitted light reflects back to the sensor from the target and the receiver evaluates it. It is important to carefully consider the characteristics of the target and the background behind the target when selecting the correct solution for an application. Diffuse sensors have much less excess gain than thru-beam pairs, but typically more than polarized retroreflective types. The sensitivity of diffuse sensors is very high. Only 2% of the transmitted light energy reflected off the target will cause the output to switch.
Background suppression sensors are specially designed diffuse sensors that eliminate false tripping on the background behind the target.

Photoelectric Sensors: Automation technology can no longer be imagined without photoelectric sensors as "artificial eyes". They are used where a reliable and non-contact detection of the exact position of objects is required. The material of the object to be detected is of no importance. Compared to inductive sensors, photoelectric sensors have a much greater sensing zone.

Through-beam sensors are distinguished by a long range. The system consists of two separate components: a transmitter and a receiver. The light only covers one way (from the transmitter to the receiver). Adverse effects in the applications, such as dust in the air, dirt on the lenses, steam or mist do not immediately interfere with the system.

For retro-reflective sensors the transmitter and receiver are incorporated into one housing. By means of a reflector the transmitted light is returned to the receiver. Retro-reflective sensors without polarization filter operate with infrared light, systems with polarization filter with visible red light.

Diffuse reflection sensors are used for the direct detection of objects. The transmitter and receiver are integrated into one housing. The transmitter emits light which is reflected by the object to be detected and seen by the receiver. The light reflection from an object is evaluated. Therefore additional functional components (such as reflectors for retro-reflective sensors) are not needed for the operation of a diffuse reflection sensor

Features:

Robust rectangular metal housing with M18 thread on the side

Particularly space-saving design for use where space is restricted

Precise background suppression

Ready for operation immediately thanks to fixed setting

Excellent price/performance ratio