An ideal application for the optoNCDT 2200-LL is therefore in structured surfaces, where the distance and not the structure itself need to be measured. The distance measurement should not be influenced by the structure of the surface, but instead should provide a constant, reliable value of the distance from the target.
Erich Winkler, Product Manager at Micro-Epsilon comments: “The speckle effect that is often associated with rough surfaces is filtered out by the new sensor’s optics and software algorithms. A component with a rough surface, when illuminated with light from a laser, exhibits a speckled appearance. This effect makes it very difficult for laser sensors to measure distances to surfaces, especially if the surface defects are very small.”
According to Winkler, the optoNCDT 2200-LL is already being used in a number of applications, including measuring the distance of lift cylinders on printing machines and for measuring the thickness of shiny, oily steel surfaces on textile machinery. The sensor is also being used to measure structured surfaces on grinding wheels and on CNC turned parts, including shafts and tubes. “These parts are cut from metal and are left with small machining tracks on the surface, which together, act like a small mirror to a laser light. In this case, most of the light is reflected back to the sensor at different angles rather than in a diffuse manner and so the sensor struggles to take accurate measurements. The optoNCDT 2200-LL has been designed specifically to solve measurement problems such as these,” explains Winkler.
Seven different versions of the optoNCDT 2200-LL sensor are available, with measuring ranges between 2mm and 200mm. The sensor is based on the company’s very successful optoNCDT 2200 and therefore benefits from all the other advantages of this series, such as fast measurement rates and automatic real-time exposure regulation.
For more information on Micro-Epsilon’s optoNCDT 2200-LL and 2220 sensors, please call the sales department on 0151 260 9800 or email: This email address is being protected from spambots. You need JavaScript enabled to view it.
