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IJAT Vol.5 No.3 pp. 369-376
doi: 10.20965/ijat.2011.p0369
(2011)

Paper:

On-Machine Optical Surface Profile Measuring System for Nano-Machining

Hiroshi Sawano*, Motohiro Takahashi*, Hayato Yoshioka*,
Hidenori Shinno*, and Kimiyuki Mitsui**

*Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan

**Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan

Received:
January 13, 2011
Accepted:
March 6, 2011
Published:
May 5, 2011
Keywords:
metrology and measurement, on-machine shape measuring system, nano-machining, optical stylus, astigmatic method
Abstract

There has been an increasing demand for machining of precision parts recently. In order to meet such requirements, nano-machining systems with on-machine surface profile measuring function are required. This paper presents a newly developed on-machine shape measuring system with an optical probe. In this system, an astigmatic focus error detection method is applied to the optical probe. In addition, the influence of the uneven reflection from the surface can be reduced by using two quadrant photodiodes. The results of surface profile measurement confirm that the system developed provides a resolution of 1 nm scale and a repeatability of approximately 50 nm.

Cite this article as:
H. Sawano, M. Takahashi, H. Yoshioka, <. Shinno, and K. Mitsui, “On-Machine Optical Surface Profile Measuring System for Nano-Machining,” Int. J. Automation Technol., Vol.5, No.3, pp. 369-376, 2011.
Data files:
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Last updated on Nov. 19, 2019