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Charlotte Stonestreet
Managing Editor |
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Interference reduced
04 July 2013
Suitable for the high speed measurement of shiny metallic and rapidly changing, rough or other difficult-to-measure surfaces, Micro-Epsilon has launched a new non-contact laser line displacement sensor.
Rather than using a spherical or point-shaped laser spot, the new optoNCDT 2300LL sensor uses a unique 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 special 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 very small line. Measurements using this laser line are then averaged using Micro-Epsilon’s patented software algorithms, so that any interference caused by surface roughness, defects, indentations or holes down in the sub-micrometre range – are dramatically reduced.
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