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Proceedings Paper

Automatic correction of the dividing errors of radial grating by photoelectric technology
Author(s): Yongcai Yang; Lin Wei Cheng; Yongsheng He
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Paper Abstract

This paper will discuss how to improve the dividing quality of radial grating and introduce the method which corrects the dividing errors of radial gratin automatically. Through analyzing the dividing errors of radial grating, the changing regulation of main error sources can be seen and the mathematical formula is also given. Photoelectric device and microcomputer are utilized to control the special transmission device which makes radial grating rotate an additional angle. The additional rotation of grating will counteracts the dividing errors of radial grating.

Paper Details

Date Published: 3 October 1996
PDF: 9 pages
Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); doi: 10.1117/12.253080
Show Author Affiliations
Yongcai Yang, East China Univ. of Technology (China)
Lin Wei Cheng, East China Univ. of Technology (China)
Yongsheng He, East China Univ. of Technology (China)


Published in SPIE Proceedings Vol. 2899:
Automated Optical Inspection for Industry
Frederick Y. Wu; Shenghua Ye, Editor(s)

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