Laser line triangulation

Laser scanners from Micro-Epsilon - often referred to as profile sensors - use the laser triangulation principle for two-dimensional profile detection on different target surfaces. By using special lenses, a laser beam is enlarged to form a static laser line and is projected onto the target surface.

The optical system projects the diffusely reflected light of this laser line onto a highly sensitive sensor matrix. From this matrix image, the controller calculates the distance information (z-axis) and the position alongside the laser line (x-axis). These measured values are then output in a two-dimensional coordinate system that is fixed with respect to the sensor. In the case of moving objects or a traversing sensor, it is therefore possible to obtain 3D measurement values.


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