Bosch-Shaft Tactile System Validation

<p style="text-align: center;"><img src="/ueditor/php/upload/image/20260911/1789137818262579.png" title="1789137818262579.png" alt="1.png"/></p><p><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">The measurement scope on the Bosch-Shaft with twelve teeth included an all-tooth measurement of all profiles and helices, including the pitch and runout measurement (or extraction of the pitch points from the profile data), as well as the measurement of tip and root circles on all teeth. In addition, one tooth was measured topographically with twenty-one profile sections. In the first step, the tactile measurement results of the Klingelnberg P40 were compared with those of the Zeiss Prismo verity. For a better visual and numerical comparison of the measurement data, the function actual-actual comparison (Ref. 4) of the Zeiss Gear Pro involute gear metrology software was used. Figure 4a shows the actual-actual comparison data as an example for the classic characteristic profile for the measurement data of Klingelnberg P40 (green) and Zeiss Prismo verity (blue). The color coding is retained throughout the report. Even when the results are greatly enlarged and exaggerated, the very good comparability of the measurement data of both tactile measuring systems can be seen in Figure 4b.</span></p><p><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">In the table of Figure 4a, the numerical differences (Δ) of the individual characteristics are shown. For all determined characteristics of profile and helix the differences are Δ &lt; 0.5 μm. In the determined characteristics of pitch, runout, and spanwidth, the respective differences are Δ &lt; 1.5 μm. Figure 5a shows the actual-actual comparison for the waviness characteristic order spectrum as an example of the profile measurement data. Figure 5b shows the very good comparability of the tactile measuring systems, which is enlarged and highlighted in color. The differences Δ are also visible in numerical form on the measurement report and were in the range Δ &lt; 20 nm.</span></p><p><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">The actual-actual comparison is not suitable for comparing the waviness characteristic helix angle of waviness (βw). For this purpose, the respective measurement reports of the color-coded topography by Zeiss and Klingelnberg were visually compared with each other. The differences Δ of the determined helix angles of waviness were in the range Δ &lt; 0.5° .</span></p><p><br/></p>