Retroreflective photoelectric sensors have an emitter and a receiver in the same housing. Retroreflective sensors require a quality reflector to reflect the light beam back to the sensors receiver. The output is triggered when the target object breaks or interrupts the light beam.
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Advantages of retroreflective sensors include:
- Longer sensing ranges than diffuse mode
- More cost effective than thru-beam
- Easy alignment especially when using red light or laser
- Polarized versions are available to detect shiny objects
- Versions for transparent detection
Control Components is an authorized distributor for full line of Balluff, Pepperl+Fuchs, IDEC, and Carlo Gavazzi retroreflective sensors.