contrinex blog

Photoelectric Distance Sensors

Contrinex 11/21/2014

Photoelectric Distance SensorsWith the new C23 and C55 series, Contrinex not only meets the demand for photoelectric sensors for ultra-precise distance measurement, but also for the measurement of very large distances. The cubic C23 sensors use triangulation to measure distances up to 200 mm with extreme precision. The C55 Series uses the time-of-flight (TOF) method for highly reliable measurement of large distances from 100 mm to 5000 mm.

C23 – precise measurement in miniature cubic housing

Measuring just 20 x 34 x 12 mm, the very small size and IP69K protection rating of the C23 housing make this sensor suitable for numerous and varied applications. Typical among these is the area of roll control. Here, C23 distance sensors measure the thickness of material on a roll for control purposes and end-of-roll detection. The analog range can be adjusted to set the 1 to 10 V analog output to the minimum and maximum thickness of the roll. Contrinex C23 photoelectric distance sensors are available for two basic measurement ranges: 20…80 mm and 30…200 mm.

C55 – measurement of large distances with time-of-flight technology

Time-of-flight (TOF) technology calculates distance by measuring the time light takes to travel from the sensor to the target and back to the sensor. Thanks to this technology, compact C55 distance measuring sensors offer long detection ranges with excellent precision. The same TOF technology is used for a long range background suppression type with 2 independently settable outputs.

A possible application for C55 distance sensors can be found in forklifts for warehouse logistics. Here they check for the presence of boxes on warehouse shelves and determine if sufficient space is available on the shelf for the next box.

Common features

Measurement with C23 and C55 distance sensors is largely independent of color and surface texture. Results are characterized by high accuracy and repeatability. In both types of sensors, the measurements are transmitted through an adjustable analog output. The sensors also offer a second output for a switching window, which is defined by teach-in.

The sensor housings have an IP69K enclosure rating. In addition, the C55 is Ecolab certified and therefore suitable for the food industry.