The 3D patch is an area sensor based on the focus variation principle with automatic adaptation of the sensor parameters to the respective surface properties of the workpiece. The optical sensor enables fast 3D nominal-actual comparisons of surface areas or purely dimensional evaluations. With the 3D patch, the topography of even small detailed areas can be measured optically with high lateral resolution.
Werth 3D Patch


An HDR function enables the capture of image stacks with different exposure times and the measurement of unevenly reflective surfaces
Intelligent software functions are available for optimal setting of exposure times
A wide range of filter options ensures reproducible and reliable results
Calculation of control geometry elements possible through automatic segmentation
Sensor principle
Optical-axial (focus variation)
Accuracy
Permissible probing error up to 0.25 µm
Functionality
With the hardware of the image processing sensor (a) camera, b) imaging optics, c) measuring object and d) incident light illumination), images are taken in different positions between z1 and z2 on the optical axis. Based on the contrast gradient, many measurement points on the workpiece surface are determined simultaneously.

The universal measurement software for coordinate measuring machines with optics, probe, computed tomography and multi-sensor systems
The operation of machines with a wide variety of sensors, as well as the evaluation of volume data and point clouds ...
Comprehensive service around the coordinate measuring machine
Services from initial commissioning, training and maintenance to retrofitting ...
