A Comparison of Blue and Red Laser Triangulation Sensors

Red laser sensors have been in use for over 20 years now and are known to perform well and have improved in recent years to provide good measurement stability on a wide range of dynamically changing surfaces, including low reflectivity and matt surfaces, as well as on fast-moving objects. However, on certain materials, red laser sensors perform less well. So when is it best to use a blue laser triangulation sensor over a red one? To answer this, a number of factors need to be considered. 



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