Retro-reflective sensors

Retro-reflective sensors

A sensor is a converter that measures a physical quantity and converts it into a signal which can be read by an electronic instrument.  Various types exist and these range from photo-electric, inductive and capacitance to ultrasonic, laser and even vision!

A retro-reflective photoelectric sensor is a device used to detect the distance, absence, or presence of an object by using a light transmitter, commonly infrared, and a photoelectric receiver. They are used extensively in industrial manufacturing. There are three different functional types:

opposed (through beam),

retro-reflective and

proximity-sensing (diffused)

A typical solution of a retro-reflective type is detecting the roll end in the packaging industry. When the roll is not present in front of the sensor, the sensor notices the absence and will alternate the output signal accordingly. This will ensure that sufficient plastic is available to continue the process, ensuring a good quality product and no scrap or damages.

FIN represents Leuze, a leading sensor manufacture in Europe, further details on sensors and possible applications can be obtained from FIN Solutions on 27654097 or projects@finmalta.eu