The OptoNCDT 1750DR laser sensor from Micro-Epsilon has been developed for surfaces such as reflective plastic, mirror glass or polished metal. The sensor measures according to the principle of direct reflection and is aligned so that the angle of incidence of the laser beam is the same as the angle of reflection. Special evaluation algorithms compensate for the light that is reflected back with high intensity. The sensor also performs real-time surface compensation, i.e. exposure control in real time. Reflectivity fluctuations are thus compensated and stable measured values with high accuracy are generated.
