Fiber-Optic Cable Sensors

Both plastic fiber-optic cables and glass fiber-optic cables can be connected to fiber-optic cable sensors. Universal reflex sensors can be used both with and without fiber-optic cables. Fiber-optic cable sensors analyze the light reflected by the object. The output switches when an object reaches the selected range (detection) or when the active light beam is interrupted (operating limits). Bright objects reflect more light than dark objects, and can thus be recognized from greater distances. In barrier operation, the color of the object has no effect on the range.

The plastic fiber-optic cables have a length of 2 meters and can be shortened.
The light spot size of the lens for plastic fiber-optic cables (LA27) can be flexibly adapted to the object size. Thanks to the highly focused lens light spot for plastic fiber-optic cables (LA28), even the smallest objects from 100μm will be detected. Lenses are available to extend the range for barrier operation. Suitable mounting technology ensures easy adjustment.

The stepped index fibers used for glass fiber-optic cables are highly resistant to chemicals and to high temperatures up to a maximum of 250°C.

Glass fiber-optic light curtains function in accordance with the barrier principle. If these fiber optic cable curtains are used in combination with an analog output, the length of the light curtain is proportional to the analog range. If a universal reflex sensor with digital switching output is utilized, the switching point can be adjusted such that the output is switched when the light slot is obstructed to a defined extent.

Application examples:

  • Recognizing processes very quickly
  • Presence monitoring
  • Testing of installation positions
  • Edge detection
  • Use in tight spaces
  • Detecting extremely small parts

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Product Name Fiber-Optic Cable Sensors
Name of Chapter Sensors
Name of Sub Chapter Photoelectronic
Brand Name Wenglor

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