ARTICLE

Sensors use time-of-flight

08 July 2013

Reliable background suppression and colour-independent detection with switch point setting to the nearest centimetre are said to be features of the new OID and O5D photoelectric sensors from ifm electronic.

 

The PMDLine sensors will detect shiny surfaces such as stainless steel without difficulty.  Both the  OID and O5D, which are in the same price range as conventional sensors, will sense an object at a distance of 2m, even against a background, and as such could be used to replace retro-reflective sensors.


These new developments employ time-of-flight measurement to combine the advantages of long ranges, reliable background suppression, visible red light and high excess gain in one unit.


The O5D features +/- buttons and a display, while the OID can be set with a simple turn of the setting ring. A scale shows the distance set, in centimetres or inches. The switch point can thus be set prior installation.


The technology allows any angle of incidence, providing high flexibility of installation. The sensor is also IO-Link enabled, e.g. for reading current value.

 
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