Sick Ax20 scanning line sensor

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Traditional sensor solutions for the detection of flat or misshapen objects, or objects of varying height, can be complex and expensive. The Ax20 scanning array sensor has a high-resolution line array with which a wide variety of objects can be detected with a repeat accuracy of up to 35 µm.

The measurement area can be up to 30 mm wide, with easy adjustment due to the visible white light. In addition, the sensor is highly immune to ambient light and always supplies precise and reliable results regardless of the reflectivity properties of material surfaces, and without any need for teach-in.

With its compact housing and appropriate mounting accessories, the Ax20 offers a high level of installation flexibility. This is as important for applications in packaging machines, in the print and paper sector or in metal processing, for example, as the numerous ways in which the measurement values can be used. Typical areas of use for the scanning line sensor include the provision of measurement values for controlling the sides of webs of endless materials such as foils, paper or fleeces, whose passage through a machine can be regulated according to the signals transmitted via the analog 4–20 mA output. Detection can take place both via the edge of the web and on the basis of a line on the material. The Ax20 also offers opportunities in the area of position detection, eg, sheets of paper, flat workpieces or electronic cards.