Be it a gas or steam turbine, gears on aircraft, ships or wind turbines - the exact form and dimensions of the turbine blade geometry determines power yield. Pietro Rosa's customers meticulously tinker with their dimensions and critically monitor if every single turbine blade meets the specifications. This is why measuring technology is so vital at Pietro Rosa.
However, inspecting the blade dimensions is anything but easy. Although there are relatively large production tolerances of two to three-tenths of a millimeter for the measurement of the "wings," they consist of freeform surfaces that can only be inspected via scanning. The foot of the blades are relatively easy to measure because they are usually cylinders, planes or conical shapes. However, the production tolerances are extremely critical at one or two-hundredths of a millimeter, i.e. 10-20 micrometers. They can only be inspected on machines with a measuring tolerance of no more than one micrometer. In the past, this was a manual process – in other words, susceptible to errors.