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Proceedings Paper

Algorithmic analysis of single-ring absolute coder
Author(s): Haibing Su; Enhai Liu; Qin Zhang Wu
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Paper Abstract

Single Ring Absolute Encoder is a mostly lately encoder technique. The angle measuring method which use black-white stripe to encode in Single Ring Absolute Encoder break through the encoding principle in the conventional grating signal process. The achievement of the Absolute Encoder interinfiltrate many techniques including the sensor, image processing, computer control, hardware integration and so on, and adapt encoder progressive demand on miniaturization and intellectualization. Closely centered on the most lately encode mode of Absolute Encoder, the paper systematically expatiated the plate encoding principle and location algorithm. A binary incising algorithm is applied to district number; and an adaptive edge fetch algorithm is offered for sub-pixel division of image signal on the border characters to calculate the center lines location of every stripe on the plate; and the perfect software filter is applied to lessening the noise during image collection. In this paper, the fundamental principle and theoretical basis of Single Ring Absolute Encoder is specified, and the system hardware design is illustrated. The experimental results fully demonstrate the correctness of system and theoretical basis.

Paper Details

Date Published: 20 September 2002
PDF: 8 pages
Proc. SPIE 4927, Optical Design and Testing, (20 September 2002); doi: 10.1117/12.471675
Show Author Affiliations
Haibing Su, Institute of Optics and Electronics (China)
Enhai Liu, Institute of Optics and Electronics (China)
Qin Zhang Wu, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 4927:
Optical Design and Testing
Zhicheng Weng; Jose M. Sasian; Yongtian Wang, Editor(s)

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