Precision sensor manufacturer Micro-Epsilon has launched a non-contact laser line displacement sensor, which is ideal for high-speed measurement of shiny metallic and rapidly changing, rough or other difficult-to-measure surfaces.
Rather than using a spherical or point-shaped laser spot, the optoNCDT 2300LL sensor uses a laser line and special software algorithms to filter out any interference caused by very small (sub-micrometre) surface defects on shiny objects such as polished metals, mild steel and rubber. The sensor uses a cylindrical lens that widens the laser spot to an oval shape. Although this shape appears as oval to the human eye, the actual shape is a line. Measurements using this laser line are then averaged using Micro-Epsilon’s software algorithms, so that any interference caused by surface roughness, defects, indentations or holes down in the sub-micrometre range are dramatically reduced.
An ideal application for the optoNCDT 2300LL is therefore on structured surfaces, where the distance to the surface 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.
The optoNCDT 2300LL is a self-contained laser displacement sensor that requires no separate controller. The sensor provides a measuring speed of up to 49.02kHz.
The sensor uses Micro-Epsilon’s A-RTSC (Advanced Real Time Surface Compensation) technology, which enables it to automatically compensate in real time for difficult-to-measure surfaces.
