Expansion of measurement range of surface roughness measurement system in small tube

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05709
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Production engineering/Processing studies
• Research Institution: Akita University
• Principal Investigator: OKUYAMA Eiki 秋田大学, 理工学研究科, 教授 (80177188)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: Surface roughness

Outline of Final Research Achievements

In various industrial fields, it is frequently necessary to measure surface roughness in confined spaces such as boreholes and grooves. We already proposed a novel surface roughness measurement sensor for small boreholes. To make the surface roughness sensor small, we used a stylus with a cylindrical mirror and a lensed fiber instead of a conventional inductive pick-up. However, experimental results showed that this system had only 8micron measurement range. Further, an encoder mirror was applied instead of the cylindrical mirror. Still, measurement range was not enough. In this research, the null method using a PZT is applied to expand the measurement range. Experimental results showed 24micron measurement range.

Free Research Field

精密工学