Non-contact optical sensors – Werth Laser Probe

With automatic intensity control and the intelligent WinWerth® measurement software, the WLP enables convenient and reliable measurement of different surfaces with up to 80° angularity or corresponding curvature. The laser distance sensor achieves a high scanning speed with several hundred to a thousand measurement points per second. Integration into the beam path of the image processing sensor saves measuring time and multi-sensor measuring range, as sensor change cycles and offset between the sensors are eliminated. Operation is simplified by visualising the measuring spot on the workpiece surface. The measuring location and measuring spot are visible on the monitor of the image processing sensor.

Due to the asymmetry of the laser beam a) through the use of a Foucault cutting edge b), the diffusely reflected light hits different positions of the differential diode c), from which the distance to the workpiece surface d) is determined. Integration into an image processing sensor f) (illumination not shown) takes place via a divider mirror e).