Influence of Surface-Profile Error of Larger Mirror on Aberrations Characteristics of Optical System

In this paper, a mechanistic model for surface generation in peripheral milling, which includes the effects of cutter vibrations, run out, as well as flank wear is presented. The surface roughness parameters, and characteristic features of the surface profile were examined using computer simulations. The results of the simulation runs were verified experimentally and a good agreement was obtained. The results demonstrated clearly the importance of including tool wear in surface generation predictions. It has been shown that the model is capable of predicting the smearing of the surface generated due to increased tool wear. Also, the ploughing force acting on the wear land considered in the model influenced the resulting profile error significantly.

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Accurate evaluation of free-form surface profile error based on quasi particle swarm optimization algorithm and surface subdivision

Chinese Journal of Mechanical Engineering ◽

10.3901/cjme.2013.02.406 ◽

2013 ◽

Vol 26 (2) ◽

pp. 406-413 ◽

Cited By ~ 15

Author(s):

Xiulan Wen ◽

Yibing Zhao ◽

Dongxia Wang ◽

Xiaochu Zhu ◽

Xiaoqiang Xue

Keyword(s):

Particle Swarm Optimization Algorithm ◽

Surface Profile ◽

Free Form ◽

Profile Error ◽

Swarm Optimization ◽

Quasi Particle ◽

Accurate Evaluation ◽

Surface Subdivision ◽

Free Form Surface ◽

Quasi Particle Swarm Optimization

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Measurement of the Straightness of a Leadscrew-Driven Precision Stage

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.295-296.259 ◽

2005 ◽

Vol 295-296 ◽

pp. 259-264 ◽

Cited By ~ 5

Author(s):

Yoshikazu Arai ◽

Wei Gao ◽

S. Kiyono ◽

Tsunemoto Kuriyagawa

Keyword(s):

Data Processing ◽

Surface Profile ◽

Probe Method ◽

Profile Error ◽

Precision Stage ◽

Improved Technique ◽

Straightness Error ◽

Periodicity Component ◽

Short Periodicity ◽

Probe Spacing

This paper describes a multi-probe method for measuring the straightness error of a leadscrew-driven stage. Two displacement probes are employed to scan a flat artifact mounted on the stage. The surface profile error of the flat artifact is separated from the straightness error of the stage in a differential output of the probes. The straightness error can thus be obtained accurately from an integration operation of the differential output without the influence of the surface profile error. An improved technique of data processing is adopted for measurement of straightness error components with periodicity shorter than the probe spacing. The influence of the angular error of the stage is compensated for by using the result measured by an autocollimator. Experiments of straightness measurement of a leadscrew-driven stage with a lead of 1 mm were carried out by using two flat artifacts with different degrees of precision. The successful detection of the short-periodicity component of the straightness error with a periodicity equal to the lead indicated the feasibility of the multi-probe method.

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