Profiling Clear Glass Plates and Detecting Broken Edges
Clear objects such as glass present unique challenges in sensing situations where EZ-ARRAYs have traditionally been used. The beams of the EZ-ARRAY could potentially burn through the clear object, producing inconsistent sensing results. A solution is needed that will reliably detect clear objects in applications that require a measuring light curtain.
To meet this need, Banner Engineering has created a special class of EZ-ARRAYs specifically designed to detect clear objects in clean industrial environments. By customizing standard EZ-ARRAY receivers to successfully detect low contrast and operate at a lower sensing range (30 to 1500 mm), Banner has enabled EZ-ARRAY Clear Object Measuring Light Curtains to detect translucent objects such as glass.
In the application shown, the EZ-ARRAY is mounted above and below the glass plate, looking for the edges as it travels on a conveyor. Beam status can be tied to a corresponding measurement mode and converted to analog values. The data can also be sent out of the Modbus 485 wires to a PLC or HMI panel.
EZ-ARRAY excels at high-speed, precise process monitoring and inspection, profiling and web-guiding applications with quick and simple installation. Applications include edge and center-guiding, loop tension control, hole sizing, parts counting and on-the-fly product sizing and profiling. Closely spaced infrared beams detect objects as small as 5 mm wide edge resolution is 2.5 mm. Controller functionality is built into the receiver, so basic setup requires no controller, software, or PC. IO-Link, Modbus-RTU, and RS-485 models are available.Read More