Abstract: Intercomparison roughness measurements have been carried out at supersmooth artefacts fabricated from BK7, fused silica, and Zerodur. The surface parameters were determined using a special prototype of the mechanical profiler Nanostep (Rank Taylor Hobson), the Optical Heterodyne Profiler Z5500 (Zygo), and an Atomic Force Microscope (Park Scientific) with an improved acquisition technique. The intercomparison was performed after the range of collected spatial wavelength for each instrument was adjusted using digital filtering techniques. It is demonstrated for different roughness ranges that are applied superpolishing techniques yield supersmooth artefacts which can be used for more intercomparisons.!9
展开▼
机译:摘要:在由BK7,熔融石英和Zerodur制造的超光滑人工制品上进行了比对粗糙度测量。使用机械轮廓仪Nanostep(Rank Taylor Hobson),光学外差轮廓仪Z5500(Zygo)和具有改进的采集技术的原子力显微镜(Park Scientific)的特殊原型确定表面参数。在使用数字滤波技术调整每种仪器收集的空间波长范围之后,进行比对。事实证明,在不同的粗糙度范围内,采用的超抛光技术可产生超光滑的伪像,可用于更多的比较。9
展开▼