Roundness/Cylindricity Measurement

摘要

The new Roundtest RA-H5200 Series roundness/cylindricity measurement system from Mitutoyo America Corp, Aurora, 111. is said to be both accurate and flexible. Finite-element modeling was used in designing the unit's base to ensure geometric accuracy by minimizing deformations caused by normal machine operation. The turntable of the RA-H5200 is also manufactured for extreme rigidity and rides on high-precision air bearings. As a result, rotational accuracy—the key to roundness/ cylindricity measurement—is described as "world-class" at (0.02+3.5H/10000) μm. The device also features ultra-high Z-Axis column straightness (0.05um/ 100mm in the narrow range) as well as standard vibration isolation.