Simulation of the tomography process with WinWerth® TomoSim
Until now, teaching volume-based evaluations was not possible without a real test measurement. With TomoSim, it is for the first time possible to simulate the tomography process offline in a coordinate measuring software using CAD data or a point cloud in STL format. The realistic simulation taking into account the set CT parameters enables the calculation of a volume including all essential artifacts. For example, a first article inspection program can be taught in parallel with the production of the first workpiece and the performance of other measurements on the machine using the WinWerth® measurement software at an offline workstation. TomoSim thus enables process acceleration and a reduction of downtimes, e.g., for TomoScope® machines in multi-shift operation.
In addition to a completed program creation and feasibility check in time for the completion of the first workpiece, the simulation of the tomography process allows testing and optimization of CT parameters. With the help of the simulated volume, significant artifacts, e.g., due to beam hardening or too few rotation steps, can be detected and, if necessary, an appropriate artifact correction can be selected. Also new is the complete offline programming of volume-based evaluations such as burr detection, void analysis, porosity analysis, text recognition, SurfaceScan Predefined or in volume sections.
Representation of the rotary table with workpiece holder and workpiece a) as well as measuring range cylinder with Raster Tomography b), simulated by TomoSim
A simulation based on the CAD models or STL point clouds and the workpiece material is also possible for multiple measurements and the simultaneous measurement of different workpieces. The operation corresponds to that of a real measuring process. You select magnification, if necessary special measuring methods like the patented Multi-ROI-CT, and the CT parameters. After starting the simulation, the acquisition of the image stack is simulated and, as in a real measuring process, the volume is reconstructed in parallel.
